chore: bump version

* added dashboard on portal
* added settings for serial port and telnet
* added on/off settings for mqtt
* added event selection for emergency mode
* refactor html & css

.github/workflows/stale.yaml

@@ -0,0 +1,20 @@
+name: "Close stale issues and PR"
+on:
+  schedule:
+    - cron: "0 * * * *"
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v9
+        with:
+          stale-issue-message: >
+            This issue is stale because it has been open 15 days with no activity. Remove stale label or comment or this will be closed in 5 days.
+          close-issue-message: >
+            This issue was closed because it has been stalled for 5 days with no activity.
+          days-before-stale: 15
+          days-before-close: 5
+          days-before-pr-stale: -1
+          days-before-pr-close: -1
+          exempt-issue-labels: "documentation,bug,enhancement"

.gitignore

@@ -1,2 +1,6 @@
 .pio
-.vscode
+.vscode
+build/*.bin
+data/**/*.gz
+secrets.ini
+!.gitkeep

README.md

@@ -1,4 +1,13 @@
-![logo](/assets/logo.svg)
+<div align="center">
+   
+   ![logo](/assets/logo.svg)
+   <br>
+   [![GitHub version](https://img.shields.io/github/release/Laxilef/OTGateway.svg?include_prereleases)](https://github.com/Laxilef/OTGateway/releases)
+   [![GitHub download](https://img.shields.io/github/downloads/Laxilef/OTGateway/total.svg)](https://github.com/Laxilef/OTGateway/releases/latest)
+   [![License](https://img.shields.io/github/license/Laxilef/OTGateway.svg)](LICENSE.txt)
+   [![Telegram](https://img.shields.io/badge/Telegram-Channel-33A8E3)](https://t.me/otgateway)
+   
+</div>
 
 ## Features
 - Hot water temperature control
@@ -7,200 +16,68 @@
    - PID
    - Equithermic curves - adjusts the temperature based on indoor and outdoor temperatures
 - Hysteresis setting (for accurate maintenance of room temperature)
-- Ability to connect an external sensors to monitor outdoor and indoor temperature ([compatible sensors](#compatible-temperature-sensors))
+- Ability to connect an external sensors to monitor outdoor and indoor temperature ([compatible sensors](https://github.com/Laxilef/OTGateway/wiki/Compatibility#temperature-sensors))
 - Emergency mode. If the Wi-Fi connection is lost or the gateway cannot connect to the MQTT server, the mode will turn on. This mode will automatically maintain the set temperature and prevent your home from freezing. In this mode it is also possible to use equithermal curves (weather-compensated control).
 - Automatic error reset (not with all boilers)
 - Diagnostics:
-  - The process of heating the coolant for heating: works/does not work
+  - The process of heating: works/does not work
   - The process of heating water for hot water: working/not working
   - Display of boiler errors
-  - Burner status: on/off
+  - Burner status (flame): on/off
   - Burner modulation level in percent
   - Pressure in the heating system
   - Gateway status (depending on errors and connection status)
   - Boiler connection status via OpenTherm interface
   - The current temperature of the heat carrier (usually the return heat carrier)
-  - Set coolant temperature (depending on the selected mode)
+  - Set heat carrier temperature (depending on the selected mode)
   - Current hot water temperature
-- Auto tuning of PID and Equitherm parameters *(in development)*
 - [Home Assistant](https://www.home-assistant.io/) integration via MQTT. The ability to create any automation for the boiler!
 
 ![logo](/assets/ha.png)
 
-## Tested on
-| Boiler | Master Member ID | Notes |
-| --- | --- | --- |
-| BAXI ECO Nova | default | Pressure sensor not supported, modulation level not stable |
-| BAXI Ampera | 1028 | Pressure sensor not supported, only heating (DHW not tested) |
-| [Remeha Calenta Ace 40C](https://github.com/Laxilef/OTGateway/issues/1#issuecomment-1726081554) | default | - |
+## Documentation
+All available information and instructions can be found in the wiki:
 
-## PCB
-<img src="/assets/pcb.svg" width="27%" /> <img src="/assets/pcb_3d.png" width="30%" /> <img src="/assets/after_assembly.png" width="40%" />
-
-Housing for installation on DIN rail - D2MG. Occupies only 2 DIN modules.<br>
-The 220V > 5V power supply is already on the board, so additional power supplies are not needed.<br>
-To save money, 2 levels are ordered as one board. After manufacturing, the boards need to be divided into 2 parts - upper and lower. The boards are inexpensively (5pcs for $2) manufactured at JLCPCB (Remove Order Number = Specify a location).<br><br>
-Some components can be replaced with similar ones (for example use a fuse and led with legs). Some SMD components (for example optocouplers) can be replaced with similar SOT components.<br>Most of the components can be purchased inexpensively on Aliexpress, the rest in your local stores.<br><br>
-The outdoor temperature sensor must be connected to the **TEMP1** connector, the indoor temperature sensor must be connected to the **TEMP2** connector. The power supply for the sensors must be connected to the **3.3V** connector, GND to **GND**.<br>
-**The opentherm connection polarity does not matter.**
-<!-- **Important!** On this board opentherm IN pin = 5, OUT pin = 4 -->
-
-- [Schematic](/assets/Schematic.pdf)
-- [BOM](/assets/BOM.xlsx)
-- [Gerber](/assets/gerber.zip)
-
-## Another compatible OpenTherm Adapters
-- [Ihor Melnyk OpenTherm Adapter](http://ihormelnyk.com/opentherm_adapter)
-- [DIYLESS Master OpenTherm Shield](https://diyless.com/product/master-opentherm-shield)
-- [OpenTherm master shield for Wemos/Lolin](https://www.tindie.com/products/thehognl/opentherm-master-shield-for-wemoslolin/)
-- And others. It's just that the adapter must implement [the schema](http://ihormelnyk.com/Content/Pages/opentherm_adapter/opentherm_adapter_schematic_o.png)
-
-## Compatible Temperature Sensors
-* DS18B20
-* DS1822
-* DS1820
-* MAX31820
-* MAX31850
-
-[See more](https://github.com/milesburton/Arduino-Temperature-Control-Library#usage)
-
-# Quick Start
-1. Download the latest firmware from the [releases page](https://github.com/Laxilef/OTGateway/releases) (or compile yourself) and flash your ESP8266 board using the [ESP Flash Download Tool](https://www.espressif.com/en/support/download/other-tools) or other software.
-2. Connect to *OpenTherm Gateway* hotspot, password: otgateway123456
-3. Open configuration page in browser: 192.168.4.1
-4. Set up a connection to your wifi network
-5. Set up a connection to your MQTT server: ip, port, user, password
-6. Set up a **Opentherm pin IN** & **Opentherm pin OUT**. No change for my board. Typically used **IN** = 4, **OUT** = 5
-7. Set up a **Outdoor sensor pin** & **Indoor sensor pin**. No change for my board.
-8. if necessary, set up a the master member ID ([see more](#tested-on))
-9. Restart module (required after changing OT pins and/or sensors pins!)
-
-After connecting to your wifi network, you can go to the setup page at the address that ESP8266 received.
-The OTGateway device will be automatically added to homeassistant if MQTT server ip, login and password are correct.
-
-## HomeAsssistant settings
-By default, the "Equitherm" and "PID" modes are disabled. In this case, the boiler will simply maintain the temperature you set.
-To use "Equitherm" or "PID" modes, the controller needs to know the temperature inside and outside the house.<br><br>
-The temperature inside the house can be set using simple automation:
-<details>
-
-  **sensor.livingroom_temperature** - temperature sensor inside the house.<br>
-  **number.opentherm_indoor_temp** - an entity that stores the temperature value inside the house. The default does not need to be changed.
-
-  ```yaml
-    alias: Set boiler indoor temp
-    description: ""
-    trigger:
-      - platform: state
-        entity_id:
-          - sensor.livingroom_temperature
-      - platform: time_pattern
-        seconds: /30
-    condition: []
-    action:
-      - if:
-          - condition: template
-            value_template: "{{ has_value('number.opentherm_indoor_temp') and (states('sensor.livingroom_temperature')|float(0) - states('number.opentherm_indoor_temp')|float(0)) | abs | round(2) >= 0.01 }}"
-        then:
-          - service: number.set_value
-            data:
-              value: "{{ states('sensor.livingroom_temperature')|float(0)|round(2) }}"
-            target:
-              entity_id: number.opentherm_indoor_temp
-    mode: single
-  ```
-</details>
-
-If your boiler does not support the installation of an outdoor temperature sensor or does not provide this value via the opentherm protocol, then you can use an external sensor or use automation.
-<details>
-  <summary>Simple automation</summary>
-
-  **weather.home** - [weather entity](https://www.home-assistant.io/integrations/weather/). It is important that the address of your home is entered correctly in the Home Assistant settings.<br>
-  **number.opentherm_outdoor_temp** - an entity that stores the temperature value outside the house. The default does not need to be changed.
-
-  ```yaml
-    alias: Set boiler outdoor temp
-    description: ""
-    trigger:
-      - platform: state
-        entity_id:
-          - weather.home
-        attribute: temperature
-        for:
-          hours: 0
-          minutes: 1
-          seconds: 0
-      - platform: time_pattern
-        seconds: /30
-    condition: []
-    action:
-      - if:
-          - condition: template
-            value_template: "{{ has_value('weather.home') and (state_attr('weather.home', 'temperature')|float(0) - states('number.opentherm_outdoor_temp')|float(0)) | abs | round(2) >= 0.1 }}"
-        then:
-          - service: number.set_value
-            data:
-              value: "{{ state_attr('weather.home', 'temperature')|float(0)|round(2) }}"
-            target:
-              entity_id: number.opentherm_outdoor_temp
-    mode: single
-  ```
-</details>
-After these settings, you can enable the "Equitherm" and/or "PID" modes and configure them as described below.
+* [Home](https://github.com/Laxilef/OTGateway/wiki)
+   * [Quick Start](https://github.com/Laxilef/OTGateway/wiki#quick-start)
+   * [Build firmware](https://github.com/Laxilef/OTGateway/wiki#build-firmware)
+   * [Flash firmware via ESP Flash Download Tool](https://github.com/Laxilef/OTGateway/wiki#flash-firmware-via-esp-flash-download-tool)
+   * [HomeAsssistant settings](https://github.com/Laxilef/OTGateway/wiki#homeasssistant-settings)
+      * [External temperature sensors](https://github.com/Laxilef/OTGateway/wiki#external-temperature-sensors)
+      * [Reporting indoor/outdoor temperature from any Home Assistant sensor](https://github.com/Laxilef/OTGateway/wiki#reporting-indooroutdoor-temperature-from-any-home-assistant-sensor)
+      * [Reporting outdoor temperature from Home Assistant weather integration](https://github.com/Laxilef/OTGateway/wiki#reporting-outdoor-temperature-from-home-assistant-weather-integration)
+      * [DHW meter](https://github.com/Laxilef/OTGateway/wiki#dhw-meter)
+      * [Advanced Settings](https://github.com/Laxilef/OTGateway/wiki#advanced-settings)
+   * [Equitherm mode](https://github.com/Laxilef/OTGateway/wiki#equitherm-mode)
+      * [Ratios](https://github.com/Laxilef/OTGateway/wiki#ratios)
+      * [Fit coefficients](https://github.com/Laxilef/OTGateway/wiki#fit-coefficients)
+   * [PID mode](https://github.com/Laxilef/OTGateway/wiki#pid-mode)
+* [Compatibility](https://github.com/Laxilef/OTGateway/wiki/Compatibility)
+   * [Boilers](https://github.com/Laxilef/OTGateway/wiki/Compatibility#boilers)
+   * [Boards](https://github.com/Laxilef/OTGateway/wiki/Compatibility#boards)
+   * [Temperature sensors](https://github.com/Laxilef/OTGateway/wiki/Compatibility#temperature-sensors)
+* [FAQ & Troubleshooting](https://github.com/Laxilef/OTGateway/wiki/FAQ-&-Troubleshooting)
+* [OT adapters](https://github.com/Laxilef/OTGateway/wiki/OT-adapters)
+   * [Adapters on sale](https://github.com/Laxilef/OTGateway/wiki/OT-adapters#adapters-on-sale)
+   * [DIY](https://github.com/Laxilef/OTGateway/wiki/OT-adapters#diy)
+      * [Files for production](https://github.com/Laxilef/OTGateway/wiki/OT-adapters#files-for-production)
+      * [Connection](https://github.com/Laxilef/OTGateway/wiki/OT-adapters#connection)
+      * [Leds on board](https://github.com/Laxilef/OTGateway/wiki/OT-adapters#leds-on-board)
 
 
-## About modes
-### Equitherm
-Weather-compensated temperature control maintains a comfortable set temperature in the house. The algorithm requires temperature sensors in the house and outside.<br> Instead of an outdoor sensor, you can use the weather forecast and automation for HA.
-
-#### Ratios:
-***N*** - heating curve coefficient. The coefficient is selected individually, depending on the insulation of the room, the heated area, etc.<br>
-Range: 0.3...10, default: 0.7, step 0.01
-
-
-***K*** - сorrection for desired room temperature.<br>
-Range: 0...10, default: 3, step 0.01
-
-
-***T*** - thermostat correction.<br>
-Range: 0...10, default: 2, step 0.01
-
-#### Instructions for fit coefficients:
-**Tip.** I created a [table in Excel](/assets/equitherm_calc.xlsx) in which you can enter temperature parameters inside and outside the house and select coefficients. On the graph you can see the temperature that the boiler will set.
-
-1. Set the ***K*** and ***T*** coefficients to 0.
-2. The first thing you need to do is to fit the curve (***N*** coefficient). If your home has low heat loss, then start with 0.5. Otherwise start at 0.7. When the temperature inside the house stops changing, increase or decrease the coefficient value in increments of 0.1 to select the optimal curve.<br>
-Please note that passive heating (sun) will affect the house temperature during curve fitting. This process is not fast and will take you 1-2 days.
-Important. During curve fitting, the temperature must be kept stable as the outside temperature changes.<br>
-At this stage, it is important for you to stabilize the indoor temperature at exactly 20 (+- 0.5) degrees.<br>
-For example. You fit curve 0.67; set temperature 20; the temperature in the house is 20.1 degrees while the outside temperature is -10 degrees and -5 degrees. This is good.
-3. After fitting the curve, you must select the ***K*** coefficient. It influences the boiler temperature correction to maintain the set temperature.
-For example. Set temperature: 23 degrees; temperature in the house: 20 degrees. Try setting it to 2 and see how the temperature in the house changes after stabilization. Select the value so that the temperature in the house is close to the set.
-4. Now you can choose the ***T*** coefficient. Simply put, it affects the sharpness of the temperature change. If you want fast heating, then set a high value (6-10), but then the room may overheat. If you want smooth heating, set 1-5. Choose the optimal value for yourself.
-5. Check to see if it works correctly at different set temperatures over several days.
-
-Read more about the algorithm [here](https://wdn.su/blog/1154).
-
-### PID
-See [Wikipedia](https://en.wikipedia.org/wiki/PID_controller).
-![PID example](https://upload.wikimedia.org/wikipedia/commons/3/33/PID_Compensation_Animated.gif)
-
-In Google you can find instructions for tuning the PID controller.
-
-### Use Equitherm mode + PID mode
-@todo
 
 ## Dependencies
-- [ESP8266Scheduler](https://github.com/nrwiersma/ESP8266Scheduler)
-- [NTPClient](https://github.com/arduino-libraries/NTPClient)
+- [ESP8266Scheduler](https://github.com/nrwiersma/ESP8266Scheduler) (for ESP8266)
+- [ESP32Scheduler](https://github.com/laxilef/ESP32Scheduler) (for ESP32)
 - [ArduinoJson](https://github.com/bblanchon/ArduinoJson)
 - [OpenTherm Library](https://github.com/ihormelnyk/opentherm_library)
-- [PubSubClient](https://github.com/knolleary/pubsubclient)
-- [TelnetStream](https://github.com/jandrassy/TelnetStream)
-- [EEManager](https://github.com/GyverLibs/EEManager)
+- [ArduinoMqttClient](https://github.com/arduino-libraries/ArduinoMqttClient)
+- [ESPTelnet](https://github.com/LennartHennigs/ESPTelnet)
+- [FileData](https://github.com/GyverLibs/FileData)
 - [GyverPID](https://github.com/GyverLibs/GyverPID)
+- [GyverBlinker](https://github.com/GyverLibs/GyverBlinker)
 - [DallasTemperature](https://github.com/milesburton/Arduino-Temperature-Control-Library)
-- [WiFiManager](https://github.com/tzapu/WiFiManager)
+- [TinyLogger](https://github.com/laxilef/TinyLogger)
 
 ## Debug
 To display DEBUG messages you must enable debug in settings (switch is disabled by default).

assets/ha/dhw_meter.yaml

@@ -0,0 +1,16 @@
+dhw_meter:
+  sensor:
+    - platform: integration
+      unique_id: hot_water_meter
+      name: hot_water_meter
+      source: sensor.opentherm_dhw_flow_rate
+      unit_time: min
+      method: left
+      round: 2
+
+  homeassistant:
+    customize:
+      sensor.hot_water_meter:
+        friendly_name: "Hot water"
+        device_class: "water"
+        icon: "mdi:water-pump"

assets/ha/report_outdoor_temp_to_controller_from_weather.yaml

@@ -0,0 +1,29 @@
+# Script for reporting outdoor temperature to the controller from home assistant weather integration
+# Updated: 07.12.2023
+
+alias: Report outdoor temp to controller from weather
+description: ""
+variables:
+  # The source weather from which we take the temperature
+  source_entity: "weather.home"
+
+  # Target entity number where we set the temperature
+  # If the prefix has not changed, then you do not need to change it
+  target_entity: "number.opentherm_outdoor_temp"
+trigger:
+  - platform: time_pattern
+    seconds: /30
+condition:
+  - condition: template
+    value_template: "{{ states(source_entity) != 'unavailable' and states(target_entity) != 'unavailable' }}"
+action:
+  - if:
+      - condition: template
+        value_template: "{{ (state_attr(source_entity, 'temperature')|float(0) - states(target_entity)|float(0)) | abs | round(2) >= 0.1 }}"
+    then:
+      - service: number.set_value
+        data:
+          value: "{{ state_attr(source_entity, 'temperature')|float(0)|round(2) }}"
+        target:
+          entity_id: "{{ target_entity }}"
+mode: single

assets/ha/report_temp_to_controller.yaml

@@ -0,0 +1,30 @@
+# Script for reporting indoor/outdoor temperature to the controller from any home assistant sensor
+# Updated: 07.12.2023
+
+alias: Report temp to controller
+description: ""
+variables:
+  # The source sensor from which we take the temperature
+  source_entity: "sensor.livingroom_temperature"
+
+  # Target entity number where we set the temperature
+  # To report indoor temperature: number.opentherm_indoor_temp
+  # To report outdoor temperature: number.opentherm_outdoor_temp
+  target_entity: "number.opentherm_indoor_temp"
+trigger:
+  - platform: time_pattern
+    seconds: /30
+condition:
+  - condition: template
+    value_template: "{{ states(source_entity) != 'unavailable' and states(target_entity) != 'unavailable' }}"
+action:
+  - if:
+      - condition: template
+        value_template: "{{ (states(source_entity)|float(0) - states(target_entity)|float(0)) | abs | round(2) >= 0.01 }}"
+    then:
+      - service: number.set_value
+        data:
+          value: "{{ states(source_entity)|float(0)|round(2) }}"
+        target:
+          entity_id: "{{ target_entity }}"
+mode: single

esp32_partitions.csv

@@ -0,0 +1,7 @@
+# Name,     Type,   SubType,    Offset,     Size,     Flags
+nvs,        data,   nvs,        0x9000,     0x5000,   
+otadata,    data,   ota,        0xE000,     0x2000,   
+app0,       app,    ota_0,      0x10000,    0x1B0000, 
+app1,       app,    ota_1,      0x1C0000,   0x1B0000, 
+spiffs,     data,   spiffs,     0x370000,   0x80000,  
+coredump,   data,   coredump,   0x3F0000,   0x10000,  

lib/BufferedWebServer/BufferedWebServer.h

@@ -0,0 +1,85 @@
+class BufferedWebServer {
+public:
+  BufferedWebServer(WebServer* webServer, size_t bufferSize = 64) {
+    this->webServer = webServer;
+    this->bufferSize = bufferSize;
+    this->buffer = (uint8_t*)malloc(bufferSize * sizeof(*this->buffer));
+  }
+
+  ~BufferedWebServer() {
+    free(this->buffer);
+  }
+
+  void send(int code, const char* contentType, JsonDocument& content) {
+    #ifdef ARDUINO_ARCH_ESP8266
+    if (!this->webServer->chunkedResponseModeStart(code, contentType)) {
+      this->webServer->send(505, F("text/html"), F("HTTP1.1 required"));
+      return;
+    }
+
+    this->webServer->setContentLength(measureJson(content));
+    #else
+    this->webServer->setContentLength(CONTENT_LENGTH_UNKNOWN);
+    this->webServer->sendHeader(F("Content-Length"), String(measureJson(content)));
+    this->webServer->send(code, contentType, emptyString);
+    #endif
+
+    serializeJson(content, *this);
+    this->flush();
+
+    #ifdef ARDUINO_ARCH_ESP8266
+    this->webServer->chunkedResponseFinalize();
+    #else
+    this->webServer->sendContent(emptyString);
+    #endif
+  }
+
+  size_t write(uint8_t c) {
+    this->buffer[this->bufferPos++] = c;
+
+    if (this->bufferPos >= this->bufferSize) {
+      this->flush();
+    }
+
+    return 1;
+  }
+
+  size_t write(const uint8_t* buffer, size_t length) {
+    size_t written = 0;
+    while (written < length) {
+      size_t copySize = this->bufferSize - this->bufferPos;
+      if (written + copySize > length) {
+        copySize = length - written;
+      }
+
+      memcpy(this->buffer + this->bufferPos, buffer + written, copySize);
+      this->bufferPos += copySize;
+
+      if (this->bufferPos >= this->bufferSize) {
+        this->flush();
+      }
+
+      written += copySize;
+    }
+
+    return written;
+  }
+
+  void flush() {
+    if (this->bufferPos == 0) {
+      return;
+    }
+
+    this->webServer->sendContent((const char*)this->buffer, this->bufferPos);
+    this->bufferPos = 0;
+    #ifdef ARDUINO_ARCH_ESP8266
+    ::delay(0);
+    #endif
+  }
+
+protected:
+  WebServer* webServer = nullptr;
+  uint8_t* buffer;
+  size_t bufferSize = 64;
+  size_t bufferPos = 0;
+};

lib/CustomOpenTherm/CustomOpenTherm.h

@@ -1,106 +1,199 @@
 #include <Arduino.h>
 #include <OpenTherm.h>
 
-extern SchedulerClass Scheduler;
-
 class CustomOpenTherm : public OpenTherm {
-private:
-  unsigned long send_ts = millis();
-  void(*handleSendRequestCallback)(unsigned long, unsigned long, OpenThermResponseStatus status, byte attempt);
-
 public:
+  typedef std::function<void()> YieldCallback;
+  typedef std::function<void(unsigned long, byte)> BeforeSendRequestCallback;
+  typedef std::function<void(unsigned long, unsigned long, OpenThermResponseStatus, byte)> AfterSendRequestCallback;
+
   CustomOpenTherm(int inPin = 4, int outPin = 5, bool isSlave = false) : OpenTherm(inPin, outPin, isSlave) {}
-  void setHandleSendRequestCallback(void(*handleSendRequestCallback)(unsigned long, unsigned long, OpenThermResponseStatus status, byte attempt)) {
-    this->handleSendRequestCallback = handleSendRequestCallback;
+  ~CustomOpenTherm() {}
+
+  CustomOpenTherm* setYieldCallback(YieldCallback callback = nullptr) {
+    this->yieldCallback = callback;
+
+    return this;
+  }
+
+  CustomOpenTherm* setBeforeSendRequestCallback(BeforeSendRequestCallback callback = nullptr) {
+    this->beforeSendRequestCallback = callback;
+
+    return this;
+  }
+
+  CustomOpenTherm* setAfterSendRequestCallback(AfterSendRequestCallback callback = nullptr) {
+    this->afterSendRequestCallback = callback;
+
+    return this;
   }
 
   unsigned long sendRequest(unsigned long request, byte attempts = 5, byte _attempt = 0) {
     _attempt++;
-    while (send_ts > 0 && millis() - send_ts < 200) {
-      Scheduler.yield();
+
+    while (!this->isReady()) {
+      if (this->yieldCallback) {
+        this->yieldCallback();
+      } else {
+        ::yield();
+      }
+
+      this->process();
+    }
+
+    if (this->beforeSendRequestCallback) {
+      this->beforeSendRequestCallback(request, _attempt);
     }
 
     unsigned long _response;
-    if (!sendRequestAync(request)) {
+    OpenThermResponseStatus _responseStatus = OpenThermResponseStatus::NONE;
+    if (!this->sendRequestAsync(request)) {
       _response = 0;
+
     } else {
-      while (!isReady()) {
-        Scheduler.yield();
-        process();
+      while (true) {
+        this->process();
+
+        if (this->status == OpenThermStatus::READY || this->status == OpenThermStatus::DELAY) {
+          break;
+        } else if (this->yieldCallback) {
+          this->yieldCallback();
+        } else {
+          ::yield();
+        }
       }
 
-      _response = getLastResponse();
+      _response = this->getLastResponse();
+      _responseStatus = this->getLastResponseStatus();
     }
 
-    if (handleSendRequestCallback != NULL) {
-      handleSendRequestCallback(request, _response, getLastResponseStatus(), _attempt);
+    if (this->afterSendRequestCallback) {
+      this->afterSendRequestCallback(request, _response, _responseStatus, _attempt);
     }
 
-    send_ts = millis();
-    if (getLastResponseStatus() == OpenThermResponseStatus::SUCCESS || _attempt >= attempts) {
+    if (_responseStatus == OpenThermResponseStatus::SUCCESS || _responseStatus == OpenThermResponseStatus::INVALID || _attempt >= attempts) {
       return _response;
+
     } else {
-      return sendRequest(request, attempts, _attempt);
+      return this->sendRequest(request, attempts, _attempt);
     }
   }
 
   unsigned long setBoilerStatus(bool enableCentralHeating, bool enableHotWater, bool enableCooling, bool enableOutsideTemperatureCompensation, bool enableCentralHeating2, bool summerWinterMode, bool dhwBlocking) {
-    return sendRequest(buildSetBoilerStatusRequest(enableCentralHeating, enableHotWater, enableCooling, enableOutsideTemperatureCompensation, enableCentralHeating2, summerWinterMode, dhwBlocking));
-  }
-
-  unsigned long buildSetBoilerStatusRequest(bool enableCentralHeating, bool enableHotWater, bool enableCooling, bool enableOutsideTemperatureCompensation, bool enableCentralHeating2, bool summerWinterMode, bool dhwBlocking) {
-    unsigned int data = enableCentralHeating | (enableHotWater << 1) | (enableCooling << 2) | (enableOutsideTemperatureCompensation << 3) | (enableCentralHeating2 << 4) | (summerWinterMode << 5) | (dhwBlocking << 6);
+    unsigned int data = enableCentralHeating
+      | (enableHotWater << 1)
+      | (enableCooling << 2)
+      | (enableOutsideTemperatureCompensation << 3)
+      | (enableCentralHeating2 << 4)
+      | (summerWinterMode << 5)
+      | (dhwBlocking << 6);
     data <<= 8;
-    return buildRequest(OpenThermMessageType::READ_DATA, OpenThermMessageID::Status, data);
+
+    return this->sendRequest(buildRequest(
+      OpenThermMessageType::READ_DATA,
+      OpenThermMessageID::Status,
+      data
+    ));
   }
 
-  bool setBoilerTemperature(float temperature) {
-    unsigned int data = temperatureToData(temperature);
-    unsigned long response = sendRequest(buildRequest(OpenThermMessageType::WRITE_DATA, OpenThermMessageID::TSet, data));
+  bool setHeatingCh1Temp(float temperature) {
+    unsigned long response = this->sendRequest(buildRequest(
+      OpenThermMessageType::WRITE_DATA,
+      OpenThermMessageID::TSet,
+      temperatureToData(temperature)
+    ));
+
     return isValidResponse(response);
   }
 
-  bool setBoilerTemperature2(float temperature) {
-    unsigned int data = temperatureToData(temperature);
-    unsigned long response = sendRequest(buildRequest(OpenThermMessageType::WRITE_DATA, OpenThermMessageID::TsetCH2, data));
+  bool setHeatingCh2Temp(float temperature) {
+    unsigned long response = this->sendRequest(buildRequest(
+      OpenThermMessageType::WRITE_DATA,
+      OpenThermMessageID::TsetCH2,
+      temperatureToData(temperature)
+    ));
+
+    return isValidResponse(response);
+  }
+
+  bool setDhwTemp(float temperature) {
+    unsigned long response = this->sendRequest(buildRequest(
+      OpenThermMessageType::WRITE_DATA,
+      OpenThermMessageID::TdhwSet,
+      temperatureToData(temperature)
+    ));
+
+    return isValidResponse(response);
+  }
+
+  bool setRoomSetpoint(float temperature) {
+    unsigned long response = this->sendRequest(buildRequest(
+      OpenThermMessageType::WRITE_DATA,
+      OpenThermMessageID::TrSet,
+      temperatureToData(temperature)
+    ));
+
+    return isValidResponse(response);
+  }
+
+  bool setRoomTemp(float temperature) {
+    unsigned long response = this->sendRequest(buildRequest(
+      OpenThermMessageType::WRITE_DATA,
+      OpenThermMessageID::Tr,
+      temperatureToData(temperature)
+    ));
+
     return isValidResponse(response);
   }
 
   bool sendBoilerReset() {
     unsigned int data = 1;
     data <<= 8;
-    unsigned long response = sendRequest(buildRequest(OpenThermMessageType::WRITE_DATA, OpenThermMessageID::Command, data));
+    unsigned long response = this->sendRequest(buildRequest(
+      OpenThermMessageType::WRITE_DATA,
+      OpenThermMessageID::RemoteRequest,
+      data
+    ));
+
     return isValidResponse(response);
   }
 
   bool sendServiceReset() {
     unsigned int data = 10;
     data <<= 8;
-    unsigned long response = sendRequest(buildRequest(OpenThermMessageType::WRITE_DATA, OpenThermMessageID::Command, data));
+    unsigned long response = this->sendRequest(buildRequest(
+      OpenThermMessageType::WRITE_DATA,
+      OpenThermMessageID::RemoteRequest,
+      data
+    ));
+
     return isValidResponse(response);
   }
 
   bool sendWaterFilling() {
     unsigned int data = 2;
     data <<= 8;
-    unsigned long response = sendRequest(buildRequest(OpenThermMessageType::WRITE_DATA, OpenThermMessageID::Command, data));
+    unsigned long response = this->sendRequest(buildRequest(
+      OpenThermMessageType::WRITE_DATA,
+      OpenThermMessageID::RemoteRequest,
+      data
+    ));
+
     return isValidResponse(response);
   }
 
   // converters
-  float f88(unsigned long response) {
-    const byte valueLB = response & 0xFF;
-    const byte valueHB = (response >> 8) & 0xFF;
-
-    float value = (int8_t) valueHB;
-    return value + (float)valueLB / 256.0;
+  template <class T>
+  static unsigned int toFloat(const T val) {
+    return (unsigned int)(val * 256);
   }
 
-  int16_t s16(unsigned long response) {
-    const byte valueLB = response & 0xFF;
-    const byte valueHB = (response >> 8) & 0xFF;
-
-    int16_t value = valueHB;
-    return ((value << 8) + valueLB);
+  static short getInt(const unsigned long response) {
+    return response & 0xffff;
   }
+
+protected:
+  YieldCallback yieldCallback;
+  BeforeSendRequestCallback beforeSendRequestCallback;
+  AfterSendRequestCallback afterSendRequestCallback;
 };

lib/Equitherm/Equitherm.h

@@ -17,7 +17,7 @@ public:
   float Kk = 0.0;
   float Kt = 0.0;
 
-  Equitherm() {}
+  Equitherm() = default;
 
   // kn, kk, kt
   Equitherm(float new_kn, float new_kk, float new_kt) {

lib/HomeAssistantHelper/HomeAssistantHelper.h

@@ -0,0 +1,145 @@
+#pragma once
+#include <Arduino.h>
+#include "strings.h"
+
+class HomeAssistantHelper {
+public:
+  typedef std::function<void(const char*, bool)> PublishEventCallback;
+
+  HomeAssistantHelper() = default;
+
+  void setWriter() {
+    this->writer = nullptr;
+  }
+
+  void setWriter(MqttWriter* writer) {
+    this->writer = writer;
+  }
+
+  void setPublishEventCallback(PublishEventCallback callback) {
+    this->publishEventCallback = callback;
+  }
+
+  void setDevicePrefix(const char* value) {
+    this->devicePrefix = value;
+  }
+
+  void setDeviceVersion(const char* value) {
+    this->deviceVersion = value;
+  }
+
+  void setDeviceManufacturer(const char* value) {
+    this->deviceManufacturer = value;
+  }
+
+  void setDeviceModel(const char* value) {
+    this->deviceModel = value;
+  }
+
+  void setDeviceName(const char* value) {
+    this->deviceName = value;
+  }
+
+  void setDeviceConfigUrl(const char* value) {
+    this->deviceConfigUrl = value;
+  }
+
+  bool publish(const char* topic, JsonDocument& doc) {
+    if (this->writer == nullptr) {
+      if (this->publishEventCallback) {
+        this->publishEventCallback(topic, false);
+      }
+      
+      return false;
+    }
+
+    doc[FPSTR(HA_DEVICE)][FPSTR(HA_IDENTIFIERS)][0] = this->devicePrefix;
+    doc[FPSTR(HA_DEVICE)][FPSTR(HA_SW_VERSION)] = this->deviceVersion;
+
+    if (this->deviceManufacturer != nullptr) {
+      doc[FPSTR(HA_DEVICE)][FPSTR(HA_MANUFACTURER)] = this->deviceManufacturer;
+    }
+
+    if (this->deviceModel != nullptr) {
+      doc[FPSTR(HA_DEVICE)][FPSTR(HA_MODEL)] = this->deviceModel;
+    }
+
+    if (this->deviceName != nullptr) {
+      doc[FPSTR(HA_DEVICE)][FPSTR(HA_NAME)] = this->deviceName;
+    }
+
+    if (this->deviceConfigUrl != nullptr) {
+      doc[FPSTR(HA_DEVICE)][FPSTR(HA_CONF_URL)] = this->deviceConfigUrl;
+    }
+
+    bool result = this->writer->publish(topic, doc, true);
+    doc.clear();
+    doc.shrinkToFit();
+
+    if (this->publishEventCallback) {
+      this->publishEventCallback(topic, result);
+    }
+
+    return result;
+  }
+
+  bool publish(const char* topic) {
+    if (this->writer == nullptr) {
+      if (this->publishEventCallback) {
+        this->publishEventCallback(topic, false);
+      }
+
+      return false;
+    }
+
+    bool result = writer->publish(topic, nullptr, 0, true);
+    if (this->publishEventCallback) {
+      this->publishEventCallback(topic, result);
+    }
+
+    return result;
+  }
+
+  template <class T>
+  String getTopic(T category, T name, char nameSeparator = '/') {
+    String topic = "";
+    topic.concat(this->prefix);
+    topic.concat('/');
+    topic.concat(category);
+    topic.concat('/');
+    topic.concat(this->devicePrefix);
+    topic.concat(nameSeparator);
+    topic.concat(name);
+    topic.concat("/config");
+    return topic;
+  }
+
+  template <class T> 
+  String getDeviceTopic(T value, char separator = '/') {
+    String topic = "";
+    topic.concat(this->devicePrefix);
+    topic.concat(separator);
+    topic.concat(value);
+    return topic;
+  }
+
+  template <class T> 
+  String getObjectId(T value, char separator = '_') {
+    String topic = "";
+    topic.concat(this->devicePrefix);
+    topic.concat(separator);
+    topic.concat(value);
+    return topic;
+  }
+
+protected:
+  PublishEventCallback publishEventCallback;
+  MqttWriter* writer = nullptr;
+  const char* prefix = "homeassistant";
+  const char* devicePrefix = "";
+  const char* deviceVersion = "1.0";
+  const char* deviceManufacturer = nullptr;
+  const char* deviceModel = nullptr;
+  const char* deviceName = nullptr;
+  const char* deviceConfigUrl = nullptr;
+};

lib/HomeAssistantHelper/strings.h

@@ -0,0 +1,70 @@
+#pragma once
+#ifndef PROGMEM
+  #define PROGMEM 
+#endif
+
+const char HA_ENTITY_BINARY_SENSOR[]            PROGMEM = "binary_sensor";
+const char HA_ENTITY_BUTTON[]                   PROGMEM = "button";
+const char HA_ENTITY_FAN[]                      PROGMEM = "fan";
+const char HA_ENTITY_CLIMATE[]                  PROGMEM = "climate";
+const char HA_ENTITY_NUMBER[]                   PROGMEM = "number";
+const char HA_ENTITY_SELECT[]                   PROGMEM = "select";
+const char HA_ENTITY_SENSOR[]                   PROGMEM = "sensor";
+const char HA_ENTITY_SWITCH[]                   PROGMEM = "switch";
+
+const char HA_DEVICE[]                          PROGMEM = "device";
+const char HA_IDENTIFIERS[]                     PROGMEM = "identifiers";
+const char HA_SW_VERSION[]                      PROGMEM = "sw_version";
+const char HA_MANUFACTURER[]                    PROGMEM = "manufacturer";
+const char HA_MODEL[]                           PROGMEM = "model";
+const char HA_NAME[]                            PROGMEM = "name";
+const char HA_CONF_URL[]                        PROGMEM = "configuration_url";
+const char HA_COMMAND_TOPIC[]                   PROGMEM = "command_topic";
+const char HA_COMMAND_TEMPLATE[]                PROGMEM = "command_template";
+const char HA_ENABLED_BY_DEFAULT[]              PROGMEM = "enabled_by_default";
+const char HA_UNIQUE_ID[]                       PROGMEM = "unique_id";
+const char HA_OBJECT_ID[]                       PROGMEM = "object_id";
+const char HA_ENTITY_CATEGORY[]                 PROGMEM = "entity_category";
+const char HA_STATE_TOPIC[]                     PROGMEM = "state_topic";
+const char HA_VALUE_TEMPLATE[]                  PROGMEM = "value_template";
+const char HA_OPTIONS[]                         PROGMEM = "options";
+const char HA_AVAILABILITY[]                    PROGMEM = "availability";
+const char HA_AVAILABILITY_MODE[]               PROGMEM = "availability_mode";
+const char HA_TOPIC[]                           PROGMEM = "topic";
+const char HA_DEVICE_CLASS[]                    PROGMEM = "device_class";
+const char HA_UNIT_OF_MEASUREMENT[]             PROGMEM = "unit_of_measurement";
+const char HA_UNIT_OF_MEASUREMENT_C[]           PROGMEM = "°C";
+const char HA_UNIT_OF_MEASUREMENT_F[]           PROGMEM = "°F";
+const char HA_ICON[]                            PROGMEM = "icon";
+const char HA_MIN[]                             PROGMEM = "min";
+const char HA_MAX[]                             PROGMEM = "max";
+const char HA_STEP[]                            PROGMEM = "step";
+const char HA_MODE[]                            PROGMEM = "mode";
+const char HA_STATE_ON[]                        PROGMEM = "state_on";
+const char HA_STATE_OFF[]                       PROGMEM = "state_off";
+const char HA_PAYLOAD_ON[]                      PROGMEM = "payload_on";
+const char HA_PAYLOAD_OFF[]                     PROGMEM = "payload_off";
+const char HA_STATE_CLASS[]                     PROGMEM = "state_class";
+const char HA_EXPIRE_AFTER[]                    PROGMEM = "expire_after";
+const char HA_CURRENT_TEMPERATURE_TOPIC[]       PROGMEM = "current_temperature_topic";
+const char HA_CURRENT_TEMPERATURE_TEMPLATE[]    PROGMEM = "current_temperature_template";
+const char HA_TEMPERATURE_COMMAND_TOPIC[]       PROGMEM = "temperature_command_topic";
+const char HA_TEMPERATURE_COMMAND_TEMPLATE[]    PROGMEM = "temperature_command_template";
+const char HA_TEMPERATURE_STATE_TOPIC[]         PROGMEM = "temperature_state_topic";
+const char HA_TEMPERATURE_STATE_TEMPLATE[]      PROGMEM = "temperature_state_template";
+const char HA_TEMPERATURE_UNIT[]                PROGMEM = "temperature_unit";
+const char HA_MODE_COMMAND_TOPIC[]              PROGMEM = "mode_command_topic";
+const char HA_MODE_COMMAND_TEMPLATE[]           PROGMEM = "mode_command_template";
+const char HA_MODE_STATE_TOPIC[]                PROGMEM = "mode_state_topic";
+const char HA_MODE_STATE_TEMPLATE[]             PROGMEM = "mode_state_template";
+const char HA_MODES[]                           PROGMEM = "modes";
+const char HA_ACTION_TOPIC[]                    PROGMEM = "action_topic";
+const char HA_ACTION_TEMPLATE[]                 PROGMEM = "action_template";
+const char HA_MIN_TEMP[]                        PROGMEM = "min_temp";
+const char HA_MAX_TEMP[]                        PROGMEM = "max_temp";
+const char HA_TEMP_STEP[]                       PROGMEM = "temp_step";
+const char HA_PRESET_MODE_COMMAND_TOPIC[]       PROGMEM = "preset_mode_command_topic";
+const char HA_PRESET_MODE_COMMAND_TEMPLATE[]    PROGMEM = "preset_mode_command_template";
+const char HA_PRESET_MODE_STATE_TOPIC[]         PROGMEM = "preset_mode_state_topic";
+const char HA_PRESET_MODE_VALUE_TEMPLATE[]      PROGMEM = "preset_mode_value_template";
+const char HA_PRESET_MODES[]                    PROGMEM = "preset_modes";

lib/MqttWriter/MqttWiFiClient.h

@@ -0,0 +1,24 @@
+#include <WiFiClient.h>
+
+class MqttWiFiClient : public WiFiClient {
+public:
+#ifdef ARDUINO_ARCH_ESP8266
+  void flush() override {
+    if (this->connected()) {
+      WiFiClient::flush(0);
+    }
+  }
+
+  void stop() override {
+    this->abort();
+  }
+#endif
+
+#ifdef ARDUINO_ARCH_ESP32
+  void setSync(bool) {}
+
+  bool getSync() {
+    return false;
+  }
+#endif
+};

lib/MqttWriter/MqttWriter.h

@@ -0,0 +1,220 @@
+#pragma once
+#include <Arduino.h>
+#include <MqttClient.h>
+#ifdef ARDUINO_ARCH_ESP32
+#include <mutex>
+#endif
+
+
+class MqttWriter {
+public:
+  typedef std::function<void()> YieldCallback;
+  typedef std::function<void(const char*, size_t, size_t, bool)> PublishEventCallback;
+  typedef std::function<void(size_t, size_t)> FlushEventCallback;
+
+  MqttWriter(MqttClient* client, size_t bufferSize = 64) {
+    this->client = client;
+    this->bufferSize = bufferSize;
+    this->buffer = (uint8_t*) malloc(bufferSize * sizeof(*this->buffer));
+
+#ifdef ARDUINO_ARCH_ESP32
+    this->mutex = new std::mutex();
+#endif
+  }
+
+  ~MqttWriter() {
+    free(this->buffer);
+
+#ifdef ARDUINO_ARCH_ESP32
+    delete this->mutex;
+#endif
+  }
+
+  MqttWriter* setYieldCallback(YieldCallback callback = nullptr) {
+    this->yieldCallback = callback;
+
+    return this;
+  }
+
+  MqttWriter* setPublishEventCallback(PublishEventCallback callback) {
+    this->publishEventCallback = callback;
+
+    return this;
+  }
+
+  MqttWriter* setFlushEventCallback(FlushEventCallback callback) {
+    this->flushEventCallback = callback;
+
+    return this;
+  }
+
+  bool lock() {
+#ifdef ARDUINO_ARCH_ESP32
+    if (!this->mutex->try_lock()) {
+      return false;
+    }
+#else
+    if (this->isLocked()) {
+      return false;
+    }
+#endif
+
+    this->locked = true;
+    this->writeAfterLock = 0;
+    this->lockedTime = millis();
+
+    return true;
+  }
+
+  bool isLocked() {
+    return this->locked;
+  }
+
+  void unlock() {
+    this->locked = false;
+#if defined(ARDUINO_ARCH_ESP32)
+    this->mutex->unlock();
+#endif
+  }
+
+  bool publish(const char* topic, JsonDocument& doc, bool retained = false) {
+    if (!this->client->connected()) {
+      this->bufferPos = 0;
+      return false;
+    }
+
+    while (!this->lock()) {
+      if (this->yieldCallback) {
+        this->yieldCallback();
+      }
+    }
+
+    this->bufferPos = 0;
+    size_t docSize = measureJson(doc);
+    size_t written = 0;
+    if (this->client->beginMessage(topic, docSize, retained)) {
+      serializeJson(doc, *this);
+      this->flush();
+      this->client->endMessage();
+      
+      written = this->writeAfterLock;
+    }
+    this->unlock();
+
+    if (this->publishEventCallback) {
+      this->publishEventCallback(topic, written, docSize, written == docSize);
+    }
+
+    return written == docSize;
+  }
+
+  bool publish(const char* topic, const char* buffer, bool retained = false) {
+    return this->publish(topic, (const uint8_t*) buffer, strlen(buffer), retained);
+  }
+
+  bool publish(const char* topic, const uint8_t* buffer, size_t length, bool retained = false) {
+    if (!this->client->connected()) {
+      this->bufferPos = 0;
+      return false;
+    }
+
+    while (!this->lock()) {
+      if (this->yieldCallback) {
+        this->yieldCallback();
+      }
+    }
+
+    this->bufferPos = 0;
+    size_t written = 0;
+    bool result = false;
+    if (!length || buffer == nullptr) {
+      result = this->client->beginMessage(topic, retained) && this->client->endMessage();
+
+    } else if (this->client->beginMessage(topic, length, retained)) {
+      this->write(buffer, length);
+      this->flush();
+      this->client->endMessage();
+      
+      written = this->writeAfterLock;
+      result = written == length;
+    }
+    this->unlock();
+
+    if (this->publishEventCallback) {
+      this->publishEventCallback(topic, written, length, result);
+    }
+
+    return result;
+  }
+
+  size_t write(uint8_t c) {
+    this->buffer[this->bufferPos++] = c;
+
+    if (this->bufferPos >= this->bufferSize) {
+      this->flush();
+    }
+
+    return 1;
+  }
+
+  size_t write(const uint8_t* buffer, size_t length) {
+    size_t written = 0;
+    while (written < length) {
+      size_t copySize = this->bufferSize - this->bufferPos;
+      if (written + copySize > length) {
+        copySize = length - written;
+      }
+
+      memcpy(this->buffer + this->bufferPos, buffer + written, copySize);
+      this->bufferPos += copySize;
+
+      if (this->bufferPos >= this->bufferSize) {
+        this->flush();
+      }
+
+      written += copySize;
+    }
+
+    return written;
+  }
+
+  bool flush() {
+    if (this->bufferPos == 0) {
+      return false;
+    }
+
+    if (!this->client->connected()) {
+      this->bufferPos = 0;
+    }
+
+    size_t length = this->bufferPos;
+    size_t written = this->client->write(this->buffer, length);
+    this->client->flush();
+    this->bufferPos = 0;
+
+    if (this->isLocked()) {
+      this->writeAfterLock += written;
+    }
+
+    if (this->flushEventCallback) {
+      this->flushEventCallback(written, length);
+    }
+
+    return written == length;
+  }
+
+protected:
+  YieldCallback yieldCallback;
+  PublishEventCallback publishEventCallback;
+  FlushEventCallback flushEventCallback;
+  MqttClient* client;
+  uint8_t* buffer;
+  size_t bufferSize = 64;
+  size_t bufferPos = 0;
+  bool locked = false;
+#ifdef ARDUINO_ARCH_ESP32
+  mutable std::mutex* mutex;
+#endif
+  unsigned long lockedTime = 0;
+  size_t writeAfterLock = 0;
+};

lib/Network/NetworkConnection.cpp

@@ -0,0 +1,150 @@
+#include "NetworkConnection.h"
+using namespace Network;
+
+void Connection::setup(bool useDhcp) {
+  setUseDhcp(useDhcp);
+
+  #if defined(ARDUINO_ARCH_ESP8266)
+  wifi_set_event_handler_cb(Connection::onEvent);
+  #elif defined(ARDUINO_ARCH_ESP32)
+  WiFi.onEvent(Connection::onEvent);
+  #endif
+}
+
+void Connection::reset() {
+  status = Status::NONE;
+  disconnectReason = DisconnectReason::NONE;
+}
+
+void Connection::setUseDhcp(bool value) {
+  useDhcp = value;
+}
+
+Connection::Status Connection::getStatus() {
+  return status;
+}
+
+Connection::DisconnectReason Connection::getDisconnectReason() {
+  return disconnectReason;
+}
+
+#if defined(ARDUINO_ARCH_ESP8266)
+void Connection::onEvent(System_Event_t *event) {
+  switch (event->event) {
+    case EVENT_STAMODE_CONNECTED:
+      status = useDhcp ? Status::CONNECTING : Status::CONNECTED;
+      disconnectReason = DisconnectReason::NONE;
+      
+      break;
+
+    case EVENT_STAMODE_GOT_IP:
+      status = Status::CONNECTED;
+      disconnectReason = DisconnectReason::NONE;
+      break;
+
+    case EVENT_STAMODE_DHCP_TIMEOUT:
+      status = Status::DISCONNECTED;
+      disconnectReason = DisconnectReason::DHCP_TIMEOUT;
+      break;
+
+    case EVENT_STAMODE_DISCONNECTED:
+      status = Status::DISCONNECTED;
+      disconnectReason = convertDisconnectReason(event->event_info.disconnected.reason);
+
+      // https://github.com/esp8266/Arduino/blob/d5eb265f78bff9deb7063d10030a02d021c8c66c/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp#L231
+      if ((wifi_station_get_connect_status() == STATION_GOT_IP) && !wifi_station_get_reconnect_policy()) {
+        wifi_station_disconnect();
+      }
+      break;
+
+    case EVENT_STAMODE_AUTHMODE_CHANGE:
+      // https://github.com/esp8266/Arduino/blob/d5eb265f78bff9deb7063d10030a02d021c8c66c/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp#L241
+      {
+        auto& src = event->event_info.auth_change;
+        if ((src.old_mode != AUTH_OPEN) && (src.new_mode == AUTH_OPEN)) {
+          status = Status::DISCONNECTED;
+          disconnectReason = DisconnectReason::OTHER;
+
+          wifi_station_disconnect();
+        }
+      }
+      break;
+    
+    default:
+      break;
+  }
+}
+#elif defined(ARDUINO_ARCH_ESP32)
+void Connection::onEvent(WiFiEvent_t event, WiFiEventInfo_t info) {
+  switch (event) {
+    case ARDUINO_EVENT_WIFI_STA_CONNECTED:
+      status = useDhcp ? Status::CONNECTING : Status::CONNECTED;
+      disconnectReason = DisconnectReason::NONE;
+      
+      break;
+
+    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
+    case ARDUINO_EVENT_WIFI_STA_GOT_IP6:
+      status = Status::CONNECTED;
+      disconnectReason = DisconnectReason::NONE;
+      break;
+
+    case ARDUINO_EVENT_WIFI_STA_LOST_IP:
+      status = Status::DISCONNECTED;
+      disconnectReason = DisconnectReason::DHCP_TIMEOUT;
+      break;
+
+    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
+      status = Status::DISCONNECTED;
+      disconnectReason = convertDisconnectReason(info.wifi_sta_disconnected.reason);
+
+      break;
+    
+    default:
+      break;
+  }
+}
+#endif
+
+Connection::DisconnectReason Connection::convertDisconnectReason(uint8_t reason) {
+  switch (reason) {
+  #if defined(ARDUINO_ARCH_ESP8266)
+    case REASON_BEACON_TIMEOUT:
+      return DisconnectReason::BEACON_TIMEOUT;
+
+    case REASON_NO_AP_FOUND:
+      return DisconnectReason::NO_AP_FOUND;
+
+    case REASON_AUTH_FAIL:
+      return DisconnectReason::AUTH_FAIL;
+
+    case REASON_ASSOC_FAIL:
+      return DisconnectReason::ASSOC_FAIL;
+
+    case REASON_HANDSHAKE_TIMEOUT:
+      return DisconnectReason::HANDSHAKE_TIMEOUT;
+  #elif defined(ARDUINO_ARCH_ESP32)
+    case WIFI_REASON_BEACON_TIMEOUT:
+      return DisconnectReason::BEACON_TIMEOUT;
+
+    case WIFI_REASON_NO_AP_FOUND:
+      return DisconnectReason::NO_AP_FOUND;
+
+    case WIFI_REASON_AUTH_FAIL:
+      return DisconnectReason::AUTH_FAIL;
+
+    case WIFI_REASON_ASSOC_FAIL:
+      return DisconnectReason::ASSOC_FAIL;
+
+    case WIFI_REASON_HANDSHAKE_TIMEOUT:
+      return DisconnectReason::HANDSHAKE_TIMEOUT;
+  #endif
+    
+    default:
+      return DisconnectReason::OTHER;
+  }
+}
+
+bool Connection::useDhcp = false;
+Connection::Status Connection::status = Status::NONE;
+Connection::DisconnectReason Connection::disconnectReason = DisconnectReason::NONE;

lib/Network/NetworkConnection.h

@@ -0,0 +1,46 @@
+#if defined(ARDUINO_ARCH_ESP8266)
+  #include <ESP8266WiFi.h>
+  #include "lwip/etharp.h"
+#elif defined(ARDUINO_ARCH_ESP32)
+  #include <WiFi.h>
+#endif
+
+namespace Network {
+  struct Connection {
+    enum class Status {
+      CONNECTED,
+      CONNECTING,
+      DISCONNECTED,
+      NONE
+    };
+
+    enum class DisconnectReason {
+      BEACON_TIMEOUT,
+      NO_AP_FOUND,
+      AUTH_FAIL,
+      ASSOC_FAIL,
+      HANDSHAKE_TIMEOUT,
+      DHCP_TIMEOUT,
+      OTHER,
+      NONE
+    };
+
+    static Status status;
+    static DisconnectReason disconnectReason;
+    
+    static void setup(bool useDhcp);
+    static void setUseDhcp(bool value);
+    static void reset();
+    static Status getStatus();
+    static DisconnectReason getDisconnectReason();
+    #if defined(ARDUINO_ARCH_ESP8266)
+    static void onEvent(System_Event_t *evt);
+    #elif defined(ARDUINO_ARCH_ESP32)
+    static void onEvent(WiFiEvent_t event, WiFiEventInfo_t info);
+    #endif
+
+  protected:
+    static DisconnectReason convertDisconnectReason(uint8_t reason);
+    static bool useDhcp;
+  };
+}

lib/Network/NetworkManager.h

@@ -0,0 +1,443 @@
+#if defined(ARDUINO_ARCH_ESP8266)
+#include <ESP8266WiFi.h>
+#include "lwip/etharp.h"
+#elif defined(ARDUINO_ARCH_ESP32)
+#include <WiFi.h>
+#include <esp_wifi.h>
+#endif
+#include <NetworkConnection.h>
+
+namespace Network {
+  class Manager {
+  public:
+    typedef std::function<void()> YieldCallback;
+    typedef std::function<void(unsigned int)> DelayCallback;
+
+    Manager() {
+      Connection::setup(this->useDhcp);
+      this->resetWifi();
+    }
+
+    Manager* setYieldCallback(YieldCallback callback = nullptr) {
+      this->yieldCallback = callback;
+
+      return this;
+    }
+
+    Manager* setDelayCallback(DelayCallback callback = nullptr) {
+      this->delayCallback = callback;
+
+      return this;
+    }
+
+    Manager* setHostname(const char* value) {
+      this->hostname = value;
+      return this;
+    }
+
+    Manager* setApCredentials(const char* ssid, const char* password = nullptr, byte channel = 0) {
+      this->apName = ssid;
+      this->apPassword = password;
+      this->apChannel = channel;
+
+      return this;
+    }
+
+    Manager* setStaCredentials(const char* ssid = nullptr, const char* password = nullptr, byte channel = 0) {
+      this->staSsid = ssid;
+      this->staPassword = password;
+      this->staChannel = channel;
+
+      return this;
+    }
+
+    Manager* setUseDhcp(bool value) {
+      this->useDhcp = value;
+      Connection::setup(this->useDhcp);
+
+      return this;
+    }
+
+    Manager* setStaticConfig(const char* ip, const char* gateway, const char* subnet, const char* dns) {
+      this->staticIp.fromString(ip);
+      this->staticGateway.fromString(gateway);
+      this->staticSubnet.fromString(subnet);
+      this->staticDns.fromString(dns);
+
+      return this;
+    }
+
+    Manager* setStaticConfig(IPAddress& ip, IPAddress& gateway, IPAddress& subnet, IPAddress& dns) {
+      this->staticIp = ip;
+      this->staticGateway = gateway;
+      this->staticSubnet = subnet;
+      this->staticDns = dns;
+
+      return this;
+    }
+
+    bool hasStaCredentials() {
+      return this->staSsid != nullptr;
+    }
+
+    bool isConnected() {
+      return this->isStaEnabled() && Connection::getStatus() == Connection::Status::CONNECTED;
+    }
+
+    bool isConnecting() {
+      return this->isStaEnabled() && Connection::getStatus() == Connection::Status::CONNECTING;
+    }
+
+    bool isStaEnabled() {
+      return (WiFi.getMode() & WIFI_STA) != 0;
+    }
+
+    bool isApEnabled() {
+      return (WiFi.getMode() & WIFI_AP) != 0;
+    }
+
+    bool hasApClients() {
+      if (!this->isApEnabled()) {
+        return false;
+      }
+
+      return WiFi.softAPgetStationNum() > 0;
+    }
+
+    short int getRssi() {
+      return WiFi.RSSI();
+    }
+
+    IPAddress getApIp() {
+      return WiFi.softAPIP();
+    }
+
+    IPAddress getStaIp() {
+      return WiFi.localIP();
+    }
+
+    IPAddress getStaSubnet() {
+      return WiFi.subnetMask();
+    }
+
+    IPAddress getStaGateway() {
+      return WiFi.gatewayIP();
+    }
+
+    IPAddress getStaDns() {
+      return WiFi.dnsIP();
+    }
+
+    String getStaMac() {
+      return WiFi.macAddress();
+    }
+
+    const char* getStaSsid() {
+      return this->staSsid;
+    }
+
+    const char* getStaPassword() {
+      return this->staPassword;
+    }
+
+    byte getStaChannel() {
+      return this->staChannel;
+    }
+
+    bool resetWifi() {
+      // set policy manual for work 13 ch
+      {
+        wifi_country_t country = {"CN", 1, 13, WIFI_COUNTRY_POLICY_MANUAL};
+        #ifdef ARDUINO_ARCH_ESP8266
+        wifi_set_country(&country);
+        #elif defined(ARDUINO_ARCH_ESP32)
+        esp_wifi_set_country(&country);
+        #endif
+      }
+
+      WiFi.persistent(false);
+      WiFi.setAutoConnect(false);
+      WiFi.setAutoReconnect(false);
+
+      #ifdef ARDUINO_ARCH_ESP8266
+      WiFi.setSleepMode(WIFI_NONE_SLEEP);
+      #elif defined(ARDUINO_ARCH_ESP32)
+      WiFi.setSleep(USE_BLE ? WIFI_PS_MIN_MODEM : WIFI_PS_NONE);
+      #endif
+
+      WiFi.softAPdisconnect();
+      #ifdef ARDUINO_ARCH_ESP8266
+      /*if (wifi_softap_dhcps_status() == DHCP_STARTED) {
+        wifi_softap_dhcps_stop();
+      }*/
+      #endif
+
+      WiFi.disconnect(false, true);
+      #ifdef ARDUINO_ARCH_ESP8266
+      /*if (wifi_station_dhcpc_status() == DHCP_STARTED) {
+        wifi_station_dhcpc_stop();
+      }*/
+
+      wifi_station_dhcpc_set_maxtry(5);
+      #endif
+
+      #ifdef ARDUINO_ARCH_ESP32
+      // Nothing. Because memory leaks when turn off WiFi on ESP32, bug?
+      return true;
+      #else
+      return WiFi.mode(WIFI_OFF);
+      #endif
+    }
+
+    void reconnect() {
+      this->reconnectFlag = true;
+    }
+
+    bool connect(bool force = false, unsigned int timeout = 1000u) {
+      if (this->isConnected() && !force) {
+        return true;
+      }
+
+      if (force && !this->isApEnabled()) {
+        this->resetWifi();
+
+      } else {
+        /*#ifdef ARDUINO_ARCH_ESP8266
+        if (wifi_station_dhcpc_status() == DHCP_STARTED) {
+          wifi_station_dhcpc_stop();
+        }
+        #endif*/
+
+        WiFi.disconnect(false, true);
+      }
+
+      if (!this->hasStaCredentials()) {
+        return false;
+      }
+
+      this->delayCallback(200);
+
+      #ifdef ARDUINO_ARCH_ESP32
+      if (this->setWifiHostname(this->hostname)) {
+        Log.straceln(FPSTR(L_NETWORK), F("Set hostname '%s': success"), this->hostname);
+
+      } else {
+        Log.serrorln(FPSTR(L_NETWORK), F("Set hostname '%s': fail"), this->hostname);
+      }
+      #endif
+
+      if (!WiFi.mode((WiFiMode_t)(WiFi.getMode() | WIFI_STA))) {
+        return false;
+      }
+
+      this->delayCallback(200);
+
+      #ifdef ARDUINO_ARCH_ESP8266
+      if (this->setWifiHostname(this->hostname)) {
+        Log.straceln(FPSTR(L_NETWORK), F("Set hostname '%s': success"), this->hostname);
+
+      } else {
+        Log.serrorln(FPSTR(L_NETWORK), F("Set hostname '%s': fail"), this->hostname);
+      }
+
+      this->delayCallback(200);
+      #endif
+
+      if (!this->useDhcp) {
+        WiFi.config(this->staticIp, this->staticGateway, this->staticSubnet, this->staticDns);
+      }
+
+      WiFi.begin(this->staSsid, this->staPassword, this->staChannel);
+
+      unsigned long beginConnectionTime = millis();
+      while (millis() - beginConnectionTime < timeout) {
+        this->delayCallback(100);
+
+        Connection::Status status = Connection::getStatus();
+        if (status != Connection::Status::CONNECTING && status != Connection::Status::NONE) {
+          return status == Connection::Status::CONNECTED;
+        }
+      }
+
+      return false;
+    }
+
+    void loop() {
+      if (this->isConnected() && !this->hasStaCredentials()) {
+        Log.sinfoln(FPSTR(L_NETWORK), F("Reset"));
+        this->resetWifi();
+        Connection::reset();
+        this->delayCallback(200);
+
+      } else if (this->isConnected() && !this->reconnectFlag) {
+        if (!this->connected) {
+          this->connectedTime = millis();
+          this->connected = true;
+
+          Log.sinfoln(
+            FPSTR(L_NETWORK),
+            F("Connected, downtime: %lu s., IP: %s, RSSI: %hhd"),
+            (millis() - this->disconnectedTime) / 1000,
+            WiFi.localIP().toString().c_str(),
+            WiFi.RSSI()
+          );
+        }
+
+        if (this->isApEnabled() && millis() - this->connectedTime > this->reconnectInterval && !this->hasApClients()) {
+          Log.sinfoln(FPSTR(L_NETWORK), F("Stop AP because connected, start only STA"));
+
+          WiFi.mode(WIFI_STA);
+          return;
+        }
+
+        #ifdef ARDUINO_ARCH_ESP8266
+        if (millis() - this->prevArpGratuitous > 60000) {
+          this->stationKeepAliveNow();
+          this->prevArpGratuitous = millis();
+        }
+        #endif
+
+      } else {
+        if (this->connected) {
+          this->disconnectedTime = millis();
+          this->connected = false;
+
+          Log.sinfoln(
+            FPSTR(L_NETWORK),
+            F("Disconnected, reason: %d, uptime: %lu s."),
+            Connection::getDisconnectReason(),
+            (millis() - this->connectedTime) / 1000
+          );
+        }
+
+        if (!this->hasStaCredentials() && !this->isApEnabled()) {
+          Log.sinfoln(FPSTR(L_NETWORK), F("No STA credentials, start AP"));
+
+          WiFi.mode(WIFI_AP_STA);
+          this->delayCallback(250);
+          WiFi.softAP(this->apName, this->apPassword, this->apChannel);
+
+        } else if (!this->isApEnabled() && millis() - this->disconnectedTime > this->failedConnectTimeout) {
+          Log.sinfoln(FPSTR(L_NETWORK), F("Disconnected for a long time, start AP"));
+
+          WiFi.mode(WIFI_AP_STA);
+          this->delayCallback(250);
+          WiFi.softAP(this->apName, this->apPassword, this->apChannel);
+
+        } else if (this->isConnecting() && millis() - this->prevReconnectingTime > this->resetConnectionTimeout) {
+          Log.swarningln(FPSTR(L_NETWORK), F("Connection timeout, reset wifi..."));
+          this->resetWifi();
+          Connection::reset();
+          this->delayCallback(200);
+
+        } else if (!this->isConnecting() && this->hasStaCredentials() && (!this->prevReconnectingTime || millis() - this->prevReconnectingTime > this->reconnectInterval)) {
+          Log.sinfoln(FPSTR(L_NETWORK), F("Try connect..."));
+
+          this->reconnectFlag = false;
+          Connection::reset();
+          if (!this->connect(true, this->connectionTimeout)) {
+            Log.straceln(FPSTR(L_NETWORK), F("Connection failed. Status: %d, reason: %d"), Connection::getStatus(), Connection::getDisconnectReason());
+          }
+
+          this->prevReconnectingTime = millis();
+        }
+      }
+    }
+
+    static byte rssiToSignalQuality(short int rssi) {
+      return constrain(map(rssi, -100, -50, 0, 100), 0, 100);
+    }
+
+  protected:
+    const unsigned int reconnectInterval = 5000;
+    const unsigned int failedConnectTimeout = 120000;
+    const unsigned int connectionTimeout = 15000;
+    const unsigned int resetConnectionTimeout = 30000;
+
+    YieldCallback yieldCallback = []() {
+      ::yield();
+    };
+    DelayCallback delayCallback = [](unsigned int time) {
+      ::delay(time);
+    };
+
+    const char* hostname = "esp";
+    const char* apName = "ESP";
+    const char* apPassword = nullptr;
+    byte apChannel = 1;
+
+    const char* staSsid = nullptr;
+    const char* staPassword = nullptr;
+    byte staChannel = 0;
+
+    bool useDhcp = true;
+    IPAddress staticIp;
+    IPAddress staticGateway;
+    IPAddress staticSubnet;
+    IPAddress staticDns;
+
+    bool connected = false;
+    bool reconnectFlag = false;
+    unsigned long prevArpGratuitous = 0;
+    unsigned long prevReconnectingTime = 0;
+    unsigned long connectedTime = 0;
+    unsigned long disconnectedTime = 0;
+
+
+    bool setWifiHostname(const char* hostname) {
+      if (!this->isHostnameValid(hostname)) {
+        return false;
+      }
+
+      if (strcmp(WiFi.getHostname(), hostname) == 0) {
+        return true;
+      }
+
+      return WiFi.setHostname(hostname);
+    }
+
+    #ifdef ARDUINO_ARCH_ESP8266
+    /**
+     * @brief
+     * https://github.com/arendst/Tasmota/blob/e6515883f0ee5451931b6280ff847b117de5a231/tasmota/tasmota_support/support_wifi.ino#L1196
+     */
+    static void stationKeepAliveNow(void) {
+      for (netif* interface = netif_list; interface != nullptr; interface = interface->next) {
+        if (
+          (interface->flags & NETIF_FLAG_LINK_UP)
+          && (interface->flags & NETIF_FLAG_UP)
+          && interface->num == STATION_IF
+          && (!ip4_addr_isany_val(*netif_ip4_addr(interface)))
+          ) {
+          etharp_gratuitous(interface);
+          break;
+        }
+      }
+    }
+    #endif
+
+    /**
+     * @brief check RFC compliance
+     *
+     * @param value
+     * @return true
+     * @return false
+     */
+    static bool isHostnameValid(const char* value) {
+      size_t len = strlen(value);
+      if (len > 24) {
+        return false;
+      } else if (value[len - 1] == '-') {
+        return false;
+      }
+
+      for (size_t i = 0; i < len; i++) {
+        if (!isalnum(value[i]) && value[i] != '-') {
+          return false;
+        }
+      }
+
+      return true;
+    }
+  };
+}

lib/WebServerHandlers/DynamicPage.h

@@ -0,0 +1,227 @@
+#include <FS.h>
+
+
+class DynamicPage : public RequestHandler {
+public:
+  typedef std::function<bool(HTTPMethod, const String&)> CanHandleCallback;
+  typedef std::function<bool()> BeforeSendCallback;
+  typedef std::function<String(const char*)> TemplateCallback;
+  
+  DynamicPage(const char* uri, FS* fs, const char* path, const char* cacheHeader = nullptr) {
+    this->uri = uri;
+    this->fs = fs;
+    this->path = path;
+    this->cacheHeader = cacheHeader;
+  }
+
+  DynamicPage* setCanHandleCallback(CanHandleCallback callback = nullptr) {
+    this->canHandleCallback = callback;
+
+    return this;
+  }
+
+  DynamicPage* setBeforeSendCallback(BeforeSendCallback callback = nullptr) {
+    this->beforeSendCallback = callback;
+
+    return this;
+  }
+
+  DynamicPage* setTemplateCallback(TemplateCallback callback = nullptr) {
+    this->templateCallback = callback;
+
+    return this;
+  }
+
+  #if defined(ARDUINO_ARCH_ESP32)
+  bool canHandle(HTTPMethod method, const String uri) override {
+  #else
+  bool canHandle(HTTPMethod method, const String& uri) override {
+  #endif
+    return uri.equals(this->uri) && (!this->canHandleCallback || this->canHandleCallback(method, uri));
+  }
+
+  #if defined(ARDUINO_ARCH_ESP32)
+  bool handle(WebServer& server, HTTPMethod method, const String uri) override {
+  #else
+  bool handle(WebServer& server, HTTPMethod method, const String& uri) override {
+  #endif
+    if (!this->canHandle(method, uri)) {
+      return false;
+    }
+
+    if (this->beforeSendCallback && !this->beforeSendCallback()) {
+      return true;
+    }
+
+    File file = this->fs->open(this->path, "r");
+    if (!file) {
+      return false;
+
+    } else if (file.isDirectory()) {
+      file.close();
+      return false;
+    }
+
+    if (this->cacheHeader != nullptr) {
+      server.sendHeader("Cache-Control", this->cacheHeader);
+    }
+
+    #ifdef ARDUINO_ARCH_ESP8266
+    if (!server.chunkedResponseModeStart(200, F("text/html"))) {
+      server.send(505, F("text/html"), F("HTTP1.1 required"));
+      return true;
+    }
+    #else
+    server.setContentLength(CONTENT_LENGTH_UNKNOWN);
+    server.send(200, "text/html", emptyString);
+    #endif
+
+    uint8_t* argStartPos = nullptr;
+    uint8_t* argEndPos = nullptr;
+    uint8_t argName[16];
+    size_t sizeArgName = 0;
+    bool argNameProcess = false;
+    while (file.available()) {
+      uint8_t buf[64];
+      size_t length = file.read(buf, sizeof(buf));
+      size_t offset = 0;
+
+      if (argNameProcess) {
+        argEndPos = (uint8_t*) memchr(buf, '}', length);
+        
+        if (argEndPos != nullptr) {
+          size_t fullSizeArgName = sizeArgName + (argEndPos - buf);
+          if (fullSizeArgName < sizeof(argName)) {
+            // copy full arg name
+            if (argEndPos - buf > 0) {
+              memcpy(argName + sizeArgName, buf, argEndPos - buf);
+            }
+            argName[fullSizeArgName] = '\0';
+
+            // send arg value
+            String argValue = this->templateCallback((const char*) argName);
+            if (argValue.length()) {
+              server.sendContent(argValue.c_str());
+
+            } else if (fullSizeArgName > 0) {
+              server.sendContent("{");
+              server.sendContent((const char*) argName);
+              server.sendContent("}");
+            }
+
+            offset = size_t(argEndPos - buf + 1);
+            sizeArgName = 0;
+            argNameProcess = false;
+          }
+        }
+
+        if (argNameProcess) {
+          server.sendContent("{");
+
+          if (sizeArgName > 0) {
+            argName[sizeArgName] = '\0';
+            server.sendContent((const char*) argName);
+          }
+
+          argNameProcess = false;
+        }
+      }
+
+      do {
+        uint8_t* currentBuf = buf + offset;
+        size_t currentLength = length - offset;
+
+        argStartPos = (uint8_t*) memchr(currentBuf, '{', currentLength);
+
+        // send all content
+        if (argStartPos == nullptr) {
+          if (currentLength > 0) {
+            server.sendContent((const char*) currentBuf, currentLength);
+          }
+
+          break;
+        }
+        
+        argEndPos = (uint8_t*) memchr(argStartPos, '}', length - (argStartPos - buf));
+        if (argEndPos != nullptr) {
+          sizeArgName = argEndPos - argStartPos - 1;
+
+          // send all content if arg len > space
+          if (sizeArgName >= sizeof(argName)) {
+            if (currentLength > 0) {
+              server.sendContent((const char*) currentBuf, currentLength);
+            }
+
+            break;
+          }
+          
+          // arg name
+          memcpy(argName, argStartPos + 1, sizeArgName);
+          argName[sizeArgName] = '\0';
+
+          // send arg value
+          String argValue = this->templateCallback((const char*) argName);
+          if (argValue.length()) {
+            // send content before var
+            if (argStartPos - buf > 0) {
+              server.sendContent((const char*) currentBuf, argStartPos - buf);
+            }
+
+            server.sendContent(argValue.c_str());
+            
+          } else {
+            server.sendContent((const char*) currentBuf, argEndPos - currentBuf + 1);
+          }
+
+          offset = size_t(argEndPos - currentBuf + 1);
+
+        } else {
+          sizeArgName = length - size_t(argStartPos - currentBuf) - 1;
+
+          // send all content if arg len > space
+          if (sizeArgName >= sizeof(argName)) {
+            if (currentLength) {
+              server.sendContent((const char*) currentBuf, currentLength);
+            }
+
+            break;
+          }
+
+          // send content before var
+          if (argStartPos - buf > 0) {
+            server.sendContent((const char*) currentBuf, argStartPos - buf);
+          }
+
+          // copy arg name chunk
+          if (sizeArgName > 0) {
+            memcpy(argName, argStartPos + 1, sizeArgName);
+          }
+
+          argNameProcess = true;
+
+          break;
+        }
+      } while(true);
+    }
+    
+    file.close();
+
+    #ifdef ARDUINO_ARCH_ESP8266
+    server.chunkedResponseFinalize();
+    #else
+    server.sendContent(emptyString);
+    #endif
+
+    return true;
+  }
+
+protected:
+  FS* fs = nullptr;
+  CanHandleCallback canHandleCallback;
+  BeforeSendCallback beforeSendCallback;
+  TemplateCallback templateCallback;
+  String eTag;
+  const char* uri = nullptr;
+  const char* path = nullptr;
+  const char* cacheHeader = nullptr;
+};

lib/WebServerHandlers/StaticPage.h

@@ -0,0 +1,109 @@
+#include <FS.h>
+#include <detail/mimetable.h>
+
+using namespace mime;
+
+class StaticPage : public RequestHandler {
+public:
+  typedef std::function<bool(HTTPMethod, const String&)> CanHandleCallback;
+  typedef std::function<bool()> BeforeSendCallback;
+  
+  StaticPage(const char* uri, FS* fs, const char* path, const char* cacheHeader = nullptr) {
+    this->uri = uri;
+    this->fs = fs;
+    this->path = path;
+    this->cacheHeader = cacheHeader;
+  }
+
+  StaticPage* setCanHandleCallback(CanHandleCallback callback = nullptr) {
+    this->canHandleCallback = callback;
+
+    return this;
+  }
+
+  StaticPage* setBeforeSendCallback(BeforeSendCallback callback = nullptr) {
+    this->beforeSendCallback = callback;
+
+    return this;
+  }
+
+  #if defined(ARDUINO_ARCH_ESP32)
+  bool canHandle(HTTPMethod method, const String uri) override {
+  #else
+  bool canHandle(HTTPMethod method, const String& uri) override {
+  #endif
+    return method == HTTP_GET && uri.equals(this->uri) && (!this->canHandleCallback || this->canHandleCallback(method, uri));
+  }
+
+  #if defined(ARDUINO_ARCH_ESP32)
+  bool handle(WebServer& server, HTTPMethod method, const String uri) override {
+  #else
+  bool handle(WebServer& server, HTTPMethod method, const String& uri) override {
+  #endif
+    if (!this->canHandle(method, uri)) {
+      return false;
+    }
+
+    if (this->beforeSendCallback && !this->beforeSendCallback()) {
+      return true;
+    }
+
+    #if defined(ARDUINO_ARCH_ESP8266)
+    if (server._eTagEnabled) {
+      if (server._eTagFunction) {
+        this->eTag = (server._eTagFunction)(*this->fs, this->path);
+
+      } else  if (this->eTag.isEmpty()) {
+        this->eTag = esp8266webserver::calcETag(*this->fs, this->path);
+      }
+
+      if (server.header("If-None-Match").equals(this->eTag.c_str())) {
+        server.send(304);
+        return true;
+      }
+    }
+    #endif
+
+    if (!this->path.endsWith(FPSTR(mimeTable[gz].endsWith)) && !this->fs->exists(path))  {
+      String pathWithGz = this->path + FPSTR(mimeTable[gz].endsWith);
+
+      if (this->fs->exists(pathWithGz)) {
+        this->path += FPSTR(mimeTable[gz].endsWith);
+      }
+    }
+
+    File file = this->fs->open(this->path, "r");
+    if (!file) {
+      return false;
+
+    } else if (file.isDirectory()) {
+      file.close();
+      return false;
+    }
+
+    if (this->cacheHeader != nullptr) {
+      server.sendHeader("Cache-Control", this->cacheHeader);
+    }
+
+    #if defined(ARDUINO_ARCH_ESP8266)
+    if (server._eTagEnabled && this->eTag.length() > 0) {
+      server.sendHeader("ETag", this->eTag);
+    }
+    
+    server.streamFile(file, F("text/html"), method);
+    #else
+    server.streamFile(file, F("text/html"), 200);
+    #endif
+
+    return true;
+  }
+
+protected:
+  FS* fs = nullptr;
+  CanHandleCallback canHandleCallback;
+  BeforeSendCallback beforeSendCallback;
+  String eTag;
+  const char* uri = nullptr;
+  String path;
+  const char* cacheHeader = nullptr;
+};

lib/WebServerHandlers/UpgradeHandler.h

@@ -0,0 +1,218 @@
+#include <Arduino.h>
+
+class UpgradeHandler : public RequestHandler {
+public:
+  enum class UpgradeType {
+    FIRMWARE = 0,
+    FILESYSTEM = 1
+  };
+
+  enum class UpgradeStatus {
+    NONE,
+    NO_FILE,
+    SUCCESS,
+    PROHIBITED,
+    ABORTED,
+    ERROR_ON_START,
+    ERROR_ON_WRITE,
+    ERROR_ON_FINISH
+  };
+
+  typedef struct {
+    UpgradeType type;
+    UpgradeStatus status;
+    String error;
+  } UpgradeResult;
+
+  typedef std::function<bool(HTTPMethod, const String&)> CanHandleCallback;
+  typedef std::function<bool(const String&)> CanUploadCallback;
+  typedef std::function<bool(UpgradeType)> BeforeUpgradeCallback;
+  typedef std::function<void(const UpgradeResult&, const UpgradeResult&)> AfterUpgradeCallback;
+  
+  UpgradeHandler(const char* uri) {
+    this->uri = uri;
+  }
+
+  UpgradeHandler* setCanHandleCallback(CanHandleCallback callback = nullptr) {
+    this->canHandleCallback = callback;
+
+    return this;
+  }
+
+  UpgradeHandler* setCanUploadCallback(CanUploadCallback callback = nullptr) {
+    this->canUploadCallback = callback;
+
+    return this;
+  }
+
+  UpgradeHandler* setBeforeUpgradeCallback(BeforeUpgradeCallback callback = nullptr) {
+    this->beforeUpgradeCallback = callback;
+
+    return this;
+  }
+
+  UpgradeHandler* setAfterUpgradeCallback(AfterUpgradeCallback callback = nullptr) {
+    this->afterUpgradeCallback = callback;
+
+    return this;
+  }
+
+  #if defined(ARDUINO_ARCH_ESP32)
+  bool canHandle(HTTPMethod method, const String uri) override {
+  #else
+  bool canHandle(HTTPMethod method, const String& uri) override {
+  #endif
+    return method == HTTP_POST && uri.equals(this->uri) && (!this->canHandleCallback || this->canHandleCallback(method, uri));
+  }
+
+  #if defined(ARDUINO_ARCH_ESP32)
+  bool canUpload(const String uri) override {
+  #else
+  bool canUpload(const String& uri) override {
+  #endif
+    return uri.equals(this->uri) && (!this->canUploadCallback || this->canUploadCallback(uri));
+  }
+
+  #if defined(ARDUINO_ARCH_ESP32)
+  bool handle(WebServer& server, HTTPMethod method, const String uri) override {
+  #else
+  bool handle(WebServer& server, HTTPMethod method, const String& uri) override {
+  #endif
+    if (this->afterUpgradeCallback) {
+      this->afterUpgradeCallback(this->firmwareResult, this->filesystemResult);
+    }
+
+    this->firmwareResult.status = UpgradeStatus::NONE;
+    this->firmwareResult.error.clear();
+
+    this->filesystemResult.status = UpgradeStatus::NONE;
+    this->filesystemResult.error.clear();
+
+    return true;
+  }
+
+  #if defined(ARDUINO_ARCH_ESP32)
+  void upload(WebServer& server, const String uri, HTTPUpload& upload) override {
+  #else
+  void upload(WebServer& server, const String& uri, HTTPUpload& upload) override {
+  #endif
+    UpgradeResult* result;
+    if (upload.name.equals("firmware")) {
+      result = &this->firmwareResult;
+    } else if (upload.name.equals("filesystem")) {
+      result = &this->filesystemResult;
+    } else {
+      return;
+    }
+
+    if (result->status != UpgradeStatus::NONE) {
+      return;
+    }
+
+    if (this->beforeUpgradeCallback && !this->beforeUpgradeCallback(result->type)) {
+      result->status = UpgradeStatus::PROHIBITED;
+      return;
+    }
+
+    if (!upload.filename.length()) {
+      result->status = UpgradeStatus::NO_FILE;
+      return;
+    }
+
+    if (upload.status == UPLOAD_FILE_START) {
+      // reset
+      if (Update.isRunning()) {
+        Update.end(false);
+        Update.clearError();
+      }
+
+      bool begin = false;
+      #ifdef ARDUINO_ARCH_ESP8266
+      Update.runAsync(true);
+      
+      if (result->type == UpgradeType::FIRMWARE) {
+        begin = Update.begin((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000, U_FLASH);
+        
+      } else if (result->type == UpgradeType::FILESYSTEM) {
+        close_all_fs();
+        begin = Update.begin((size_t)FS_end - (size_t)FS_start, U_FS);
+      }
+      #elif defined(ARDUINO_ARCH_ESP32)
+      if (result->type == UpgradeType::FIRMWARE) {
+        begin = Update.begin(UPDATE_SIZE_UNKNOWN, U_FLASH);
+        
+      } else if (result->type == UpgradeType::FILESYSTEM) {
+        begin = Update.begin(UPDATE_SIZE_UNKNOWN, U_SPIFFS);
+      }
+      #endif
+
+      if (!begin || Update.hasError()) {
+        result->status = UpgradeStatus::ERROR_ON_START;
+        #ifdef ARDUINO_ARCH_ESP8266
+        result->error = Update.getErrorString();
+        #else
+        result->error = Update.errorString();
+        #endif
+
+        Log.serrorln(FPSTR(L_PORTAL_OTA), F("File '%s', on start: %s"), upload.filename.c_str(), result->error.c_str());
+        return;
+      }
+      
+      Log.sinfoln(FPSTR(L_PORTAL_OTA), F("File '%s', started"), upload.filename.c_str());
+
+    } else if (upload.status == UPLOAD_FILE_WRITE) {
+      if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) {
+        Update.end(false);
+
+        result->status = UpgradeStatus::ERROR_ON_WRITE;
+        #ifdef ARDUINO_ARCH_ESP8266
+        result->error = Update.getErrorString();
+        #else
+        result->error = Update.errorString();
+        #endif
+
+        Log.serrorln(
+          FPSTR(L_PORTAL_OTA),
+          F("File '%s', on writing %d bytes: %s"),
+          upload.filename.c_str(), upload.totalSize, result->error.c_str()
+        );
+
+      } else {
+        Log.sinfoln(FPSTR(L_PORTAL_OTA), F("File '%s', writed %d bytes"), upload.filename.c_str(), upload.totalSize);
+      }
+
+    } else if (upload.status == UPLOAD_FILE_END) {
+      if (Update.end(true)) {
+        result->status = UpgradeStatus::SUCCESS;
+
+        Log.sinfoln(FPSTR(L_PORTAL_OTA), F("File '%s': finish"), upload.filename.c_str());
+
+      } else {
+        result->status = UpgradeStatus::ERROR_ON_FINISH;
+        #ifdef ARDUINO_ARCH_ESP8266
+        result->error = Update.getErrorString();
+        #else
+        result->error = Update.errorString();
+        #endif
+
+        Log.serrorln(FPSTR(L_PORTAL_OTA), F("File '%s', on finish: %s"), upload.filename.c_str(), result->error);
+      }
+
+    } else if (upload.status == UPLOAD_FILE_ABORTED) {
+      Update.end(false);
+      result->status = UpgradeStatus::ABORTED;
+
+      Log.serrorln(FPSTR(L_PORTAL_OTA), F("File '%s': aborted"), upload.filename.c_str());
+    }
+  }
+
+protected:
+  CanHandleCallback canHandleCallback;
+  CanUploadCallback canUploadCallback;
+  BeforeUpgradeCallback beforeUpgradeCallback;
+  AfterUpgradeCallback afterUpgradeCallback;
+  const char* uri = nullptr;
+
+  UpgradeResult firmwareResult{UpgradeType::FIRMWARE, UpgradeStatus::NONE};
+  UpgradeResult filesystemResult{UpgradeType::FILESYSTEM, UpgradeStatus::NONE};
+};

lib/WiFiManagerParameters/WiFiManagerParameters.h

@@ -1,38 +0,0 @@
-class IntParameter : public WiFiManagerParameter {
-public:
-  IntParameter(const char* id, const char* label, int value, const uint8_t length = 10) : WiFiManagerParameter("") {
-    init(id, label, String(value).c_str(), length, "", WFM_LABEL_DEFAULT);
-  }
-
-  int getValue() {
-    return atoi(WiFiManagerParameter::getValue());
-  }
-};
-
-class CheckboxParameter : public WiFiManagerParameter {
-public:
-  const char* checked = "type=\"checkbox\" checked";
-  const char* noChecked = "type=\"checkbox\"";
-  const char* trueVal = "T";
-
-  CheckboxParameter(const char* id, const char* label, bool value): WiFiManagerParameter("") {
-    init(id, label, value ? trueVal : "0", 1, "", WFM_LABEL_AFTER);
-  }
-
-  const char* getValue() const override {
-    return trueVal;
-  }
-
-  const char* getCustomHTML() const override {
-    return strcmp(WiFiManagerParameter::getValue(), trueVal) == 0 ? checked : noChecked;
-  }
-
-  bool getCheckboxValue() {
-    return strcmp(WiFiManagerParameter::getValue(), trueVal) == 0 ? true : false;
-  }
-};
-
-class SeparatorParameter : public WiFiManagerParameter {
-public:
-  SeparatorParameter(): WiFiManagerParameter("<hr>") {}
-};

platformio.ini

@@ -8,22 +8,234 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
-[env:d1_mini_pro]
-platform = espressif8266
-board = d1_mini_pro
+[platformio]
+;extra_configs = secrets.ini
+extra_configs = secrets.default.ini
+
+[env]
 framework = arduino
 lib_deps = 
-	nrwiersma/ESP8266Scheduler@^1.0
-	arduino-libraries/NTPClient@^3.2.1
-	bblanchon/ArduinoJson@^6.20.0
-	ihormelnyk/OpenTherm Library@^1.1.4
-	knolleary/PubSubClient@^2.8
-	jandrassy/TelnetStream@^1.2.4
-	gyverlibs/EEManager@^2.0
-	gyverlibs/GyverPID@^3.3
+	bblanchon/ArduinoJson@^7.0.4
+	;ihormelnyk/OpenTherm Library@^1.1.5
+	https://github.com/Laxilef/opentherm_library/archive/refs/heads/fix_lambda.zip
+	arduino-libraries/ArduinoMqttClient@^0.1.8
+	lennarthennigs/ESP Telnet@^2.2
+	gyverlibs/FileData@^1.0.2
+	gyverlibs/GyverPID@^3.3.2
+	gyverlibs/GyverBlinker@^1.0
 	milesburton/DallasTemperature@^3.11.0
-	https://github.com/Laxilef/WiFiManager/archive/refs/heads/patch-1.zip
-;	https://github.com/tzapu/WiFiManager.git#v2.0.16-rc.2
-build_flags = -D PIO_FRAMEWORK_ARDUINO_LWIP2_HIGHER_BANDWIDTH
+	laxilef/TinyLogger@^1.1.0
+build_flags = 
+	-D PIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
+	-D PIO_FRAMEWORK_ARDUINO_ESPRESSIF_SDK305
+	-mtext-section-literals
+	-D MQTT_CLIENT_STD_FUNCTION_CALLBACK=1
+	;-D DEBUG_ESP_CORE -D DEBUG_ESP_WIFI -D DEBUG_ESP_HTTP_SERVER -D DEBUG_ESP_PORT=Serial
+	-D USE_SERIAL=${secrets.use_serial}
+	-D USE_TELNET=${secrets.use_telnet}
+	-D DEBUG_BY_DEFAULT=${secrets.debug}
+	-D DEFAULT_HOSTNAME='"${secrets.hostname}"'
+	-D DEFAULT_AP_SSID='"${secrets.ap_ssid}"'
+	-D DEFAULT_AP_PASSWORD='"${secrets.ap_password}"'
+	-D DEFAULT_STA_SSID='"${secrets.sta_ssid}"'
+	-D DEFAULT_STA_PASSWORD='"${secrets.sta_password}"'
+	-D DEFAULT_PORTAL_LOGIN='"${secrets.portal_login}"'
+	-D DEFAULT_PORTAL_PASSWORD='"${secrets.portal_password}"'
+	-D DEFAULT_MQTT_SERVER='"${secrets.mqtt_server}"'
+	-D DEFAULT_MQTT_PORT=${secrets.mqtt_port}
+	-D DEFAULT_MQTT_USER='"${secrets.mqtt_user}"'
+	-D DEFAULT_MQTT_PASSWORD='"${secrets.mqtt_password}"'
+	-D DEFAULT_MQTT_PREFIX='"${secrets.mqtt_prefix}"'
 upload_speed = 921600
 monitor_speed = 115200
+monitor_filters = direct
+board_build.flash_mode = dio
+board_build.filesystem = littlefs
+version = 1.4.0-rc.24
+
+; Defaults
+[esp8266_defaults]
+platform = espressif8266
+lib_deps = 
+	${env.lib_deps}
+	nrwiersma/ESP8266Scheduler@^1.2
+lib_ignore = 
+extra_scripts = 
+	post:tools/build.py
+build_flags = ${env.build_flags}
+board_build.ldscript = eagle.flash.4m1m.ld
+
+[esp32_defaults]
+platform = espressif32@^6.6
+platform_packages =
+    platformio/framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32/archive/refs/tags/2.0.15.zip
+board_build.partitions = esp32_partitions.csv
+lib_deps =
+	${env.lib_deps}
+	laxilef/ESP32Scheduler@^1.0.1
+lib_ignore = 
+extra_scripts = 
+	post:tools/esp32.py
+	post:tools/build.py
+build_flags = 
+	${env.build_flags}
+	-D CORE_DEBUG_LEVEL=0
+
+
+; Boards
+[env:d1_mini]
+platform = ${esp8266_defaults.platform}
+board = d1_mini
+lib_deps = ${esp8266_defaults.lib_deps}
+lib_ignore = ${esp8266_defaults.lib_ignore}
+extra_scripts = ${esp8266_defaults.extra_scripts}
+board_build.ldscript = ${esp8266_defaults.board_build.ldscript}
+build_flags = 
+	${esp8266_defaults.build_flags}
+	-D DEFAULT_OT_IN_GPIO=4
+	-D DEFAULT_OT_OUT_GPIO=5
+	-D DEFAULT_SENSOR_OUTDOOR_GPIO=12
+	-D DEFAULT_SENSOR_INDOOR_GPIO=14
+	-D DEFAULT_STATUS_LED_GPIO=13
+	-D DEFAULT_OT_RX_LED_GPIO=15
+
+[env:d1_mini_lite]
+platform = ${esp8266_defaults.platform}
+board = d1_mini_lite
+lib_deps = ${esp8266_defaults.lib_deps}
+lib_ignore = ${esp8266_defaults.lib_ignore}
+extra_scripts = ${esp8266_defaults.extra_scripts}
+board_build.ldscript = ${esp8266_defaults.board_build.ldscript}
+build_flags = 
+	${esp8266_defaults.build_flags}
+	-D DEFAULT_OT_IN_GPIO=4
+	-D DEFAULT_OT_OUT_GPIO=5
+	-D DEFAULT_SENSOR_OUTDOOR_GPIO=12
+	-D DEFAULT_SENSOR_INDOOR_GPIO=14
+	-D DEFAULT_STATUS_LED_GPIO=13
+	-D DEFAULT_OT_RX_LED_GPIO=15
+
+[env:d1_mini_pro]
+platform = ${esp8266_defaults.platform}
+board = d1_mini_pro
+lib_deps = ${esp8266_defaults.lib_deps}
+lib_ignore = ${esp8266_defaults.lib_ignore}
+extra_scripts = ${esp8266_defaults.extra_scripts}
+board_build.ldscript = ${esp8266_defaults.board_build.ldscript}
+build_flags = 
+	${esp8266_defaults.build_flags}
+	-D DEFAULT_OT_IN_GPIO=4
+	-D DEFAULT_OT_OUT_GPIO=5
+	-D DEFAULT_SENSOR_OUTDOOR_GPIO=12
+	-D DEFAULT_SENSOR_INDOOR_GPIO=14
+	-D DEFAULT_STATUS_LED_GPIO=13
+	-D DEFAULT_OT_RX_LED_GPIO=15
+
+[env:s2_mini]
+platform = ${esp32_defaults.platform}
+platform_packages = ${esp32_defaults.platform_packages}
+board = lolin_s2_mini
+board_build.partitions = ${esp32_defaults.board_build.partitions}
+lib_deps = ${esp32_defaults.lib_deps}
+lib_ignore = ${esp32_defaults.lib_ignore}
+extra_scripts = ${esp32_defaults.extra_scripts}
+build_unflags =
+	-DARDUINO_USB_MODE=1
+build_flags = 
+	${esp32_defaults.build_flags}
+	-D ARDUINO_USB_MODE=0
+	-D ARDUINO_USB_CDC_ON_BOOT=1
+	-D DEFAULT_OT_IN_GPIO=33
+	-D DEFAULT_OT_OUT_GPIO=35
+	-D DEFAULT_SENSOR_OUTDOOR_GPIO=9
+	-D DEFAULT_SENSOR_INDOOR_GPIO=7
+	-D DEFAULT_STATUS_LED_GPIO=11
+	-D DEFAULT_OT_RX_LED_GPIO=12
+
+[env:s3_mini] 
+platform = ${esp32_defaults.platform}
+platform_packages = ${esp32_defaults.platform_packages}
+board = lolin_s3_mini
+board_build.partitions = ${esp32_defaults.board_build.partitions}
+lib_deps = 
+	${esp32_defaults.lib_deps}
+	h2zero/NimBLE-Arduino@^1.4.1
+lib_ignore = ${esp32_defaults.lib_ignore}
+extra_scripts = ${esp32_defaults.extra_scripts}
+build_unflags =
+	-DARDUINO_USB_MODE=1
+build_flags = 
+	${esp32_defaults.build_flags}
+	-D ARDUINO_USB_MODE=0
+	-D ARDUINO_USB_CDC_ON_BOOT=1
+	-D USE_BLE=1
+	-D DEFAULT_OT_IN_GPIO=35
+	-D DEFAULT_OT_OUT_GPIO=36
+	-D DEFAULT_SENSOR_OUTDOOR_GPIO=13
+	-D DEFAULT_SENSOR_INDOOR_GPIO=12
+	-D DEFAULT_STATUS_LED_GPIO=11
+	-D DEFAULT_OT_RX_LED_GPIO=10
+
+[env:c3_mini] 
+platform = ${esp32_defaults.platform}
+platform_packages =
+    platformio/framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32/archive/refs/tags/2.0.15.zip
+board = lolin_c3_mini
+board_build.partitions = ${esp32_defaults.board_build.partitions}
+lib_deps = 
+	${esp32_defaults.lib_deps}
+	h2zero/NimBLE-Arduino@^1.4.1
+lib_ignore = ${esp32_defaults.lib_ignore}
+extra_scripts = ${esp32_defaults.extra_scripts}
+build_unflags = 
+	-mtext-section-literals
+build_flags = 
+	${esp32_defaults.build_flags}
+	-D USE_BLE=1
+	-D DEFAULT_OT_IN_GPIO=8
+	-D DEFAULT_OT_OUT_GPIO=10
+	-D DEFAULT_SENSOR_OUTDOOR_GPIO=0
+	-D DEFAULT_SENSOR_INDOOR_GPIO=1
+	-D DEFAULT_STATUS_LED_GPIO=4
+	-D DEFAULT_OT_RX_LED_GPIO=5
+
+[env:nodemcu_32s]
+platform = ${esp32_defaults.platform}
+platform_packages = ${esp32_defaults.platform_packages}
+board = nodemcu-32s
+board_build.partitions = ${esp32_defaults.board_build.partitions}
+lib_deps = 
+	${esp32_defaults.lib_deps}
+	h2zero/NimBLE-Arduino@^1.4.1
+lib_ignore = ${esp32_defaults.lib_ignore}
+extra_scripts = ${esp32_defaults.extra_scripts}
+build_flags = 
+	${esp32_defaults.build_flags}
+	-D USE_BLE=1
+	-D DEFAULT_OT_IN_GPIO=21
+	-D DEFAULT_OT_OUT_GPIO=22
+	-D DEFAULT_SENSOR_OUTDOOR_GPIO=12
+	-D DEFAULT_SENSOR_INDOOR_GPIO=13
+	-D DEFAULT_STATUS_LED_GPIO=2 ; 18
+	-D DEFAULT_OT_RX_LED_GPIO=19
+	;-D WOKWI=1
+
+[env:d1_mini32]
+platform = ${esp32_defaults.platform}
+platform_packages = ${esp32_defaults.platform_packages}
+board = wemos_d1_mini32
+board_build.partitions = ${esp32_defaults.board_build.partitions}
+lib_deps = 
+	${esp32_defaults.lib_deps}
+	h2zero/NimBLE-Arduino@^1.4.1
+lib_ignore = ${esp32_defaults.lib_ignore}
+extra_scripts = ${esp32_defaults.extra_scripts}
+build_flags = 
+	${esp32_defaults.build_flags}
+	-D USE_BLE=1
+	-D DEFAULT_OT_IN_GPIO=21
+	-D DEFAULT_OT_OUT_GPIO=22
+	-D DEFAULT_SENSOR_OUTDOOR_GPIO=12
+	-D DEFAULT_SENSOR_INDOOR_GPIO=18
+	-D DEFAULT_STATUS_LED_GPIO=2
+	-D DEFAULT_OT_RX_LED_GPIO=19

secrets.default.ini

@@ -0,0 +1,20 @@
+[secrets]
+use_serial = true
+use_telnet = true
+debug = true
+hostname = opentherm
+
+ap_ssid = OpenTherm Gateway
+ap_password = otgateway123456
+
+sta_ssid = 
+sta_password = 
+
+portal_login = admin
+portal_password = admin
+
+mqtt_server = 
+mqtt_port = 1883
+mqtt_user = 
+mqtt_password = 
+mqtt_prefix = opentherm

src/MainTask.h

@@ -1,134 +1,381 @@
+#include <Blinker.h>
+
+extern Network::Manager* network;
 extern MqttTask* tMqtt;
-extern SensorsTask* tSensors;
 extern OpenThermTask* tOt;
+extern FileData fsSettings, fsNetworkSettings;
+extern ESPTelnetStream* telnetStream;
 
-class MainTask: public Task {
+
+class MainTask : public Task {
 public:
-  MainTask(bool _enabled = false, unsigned long _interval = 0): Task(_enabled, _interval) {}
+  MainTask(bool _enabled = false, unsigned long _interval = 0) : Task(_enabled, _interval) {
+    this->blinker = new Blinker();
 
-protected:
-  unsigned long lastHeapInfo = 0;
-  unsigned long firstFailConnect = 0;
-  unsigned short minFreeHeapSize = 65535;
-
-  void setup() {
-    pinMode(LED_STATUS_PIN, OUTPUT);
+    network->setDelayCallback([this](unsigned int time) {
+      this->delay(time);
+    })->setYieldCallback([this]() {
+      this->yield();
+    });
   }
 
+  ~MainTask() {
+    delete this->blinker;
+  }
+
+protected:
+  enum class PumpStartReason {NONE, HEATING, ANTISTUCK};
+
+  Blinker* blinker = nullptr;
+  unsigned long firstFailConnect = 0;
+  unsigned long lastHeapInfo = 0;
+  unsigned int minFreeHeap = 0;
+  unsigned int minMaxFreeBlockHeap = 0;
+  unsigned long restartSignalTime = 0;
+  bool heatingEnabled = false;
+  unsigned long heatingDisabledTime = 0;
+  PumpStartReason extPumpStartReason = PumpStartReason::NONE;
+  unsigned long externalPumpStartTime = 0;
+  bool telnetStarted = false;
+
+  const char* getTaskName() {
+    return "Main";
+  }
+
+  /*int getTaskCore() {
+    return 1;
+  }*/
+
+  int getTaskPriority() {
+    return 3;
+  }
+
+  void setup() {}
+
   void loop() {
-    if (eeSettings.tick()) {
-      INFO("Settings updated (EEPROM)");
+    network->loop();
+
+    if (fsSettings.tick() == FD_WRITE) {
+      Log.sinfoln(FPSTR(L_SETTINGS), F("Updated"));
     }
 
-    if (WiFi.status() == WL_CONNECTED) {
-      if (!tMqtt->isEnabled()) {
+    if (fsNetworkSettings.tick() == FD_WRITE) {
+      Log.sinfoln(FPSTR(L_NETWORK_SETTINGS), F("Updated"));
+    }
+
+    if (vars.actions.restart) {
+      vars.actions.restart = false;
+      this->restartSignalTime = millis();
+
+      // save settings
+      fsSettings.updateNow();
+
+      // force save network settings
+      if (fsNetworkSettings.updateNow() == FD_FILE_ERR && LittleFS.begin()) {
+        fsNetworkSettings.write();
+      }
+
+      Log.sinfoln(FPSTR(L_MAIN), F("Restart signal received. Restart after 10 sec."));
+    }
+
+    vars.states.mqtt = tMqtt->isConnected();
+    vars.sensors.rssi = network->isConnected() ? WiFi.RSSI() : 0;
+
+    if (vars.states.emergency && !settings.emergency.enable) {
+      vars.states.emergency = false;
+    }
+
+    if (network->isConnected()) {
+      if (!this->telnetStarted && telnetStream != nullptr) {
+        telnetStream->begin(23, false);
+        this->telnetStarted = true;
+      }
+
+      if (settings.mqtt.enable && !tMqtt->isEnabled()) {
         tMqtt->enable();
+
+      } else if (!settings.mqtt.enable && tMqtt->isEnabled()) {
+        tMqtt->disable();
       }
 
-      if ( firstFailConnect != 0 ) {
-        firstFailConnect = 0;
+      if (!vars.states.emergency && settings.emergency.enable && settings.emergency.onMqttFault && !tMqtt->isEnabled()) {
+        vars.states.emergency = true;
+
+      } else if (vars.states.emergency && !settings.emergency.onMqttFault) {
+        vars.states.emergency = false;
       }
 
-      vars.states.rssi = WiFi.RSSI();
+      if (this->firstFailConnect != 0) {
+        this->firstFailConnect = 0;
+      }
+
+      if ( Log.getLevel() != TinyLogger::Level::INFO && !settings.system.debug ) {
+        Log.setLevel(TinyLogger::Level::INFO);
+
+      } else if ( Log.getLevel() != TinyLogger::Level::VERBOSE && settings.system.debug ) {
+        Log.setLevel(TinyLogger::Level::VERBOSE);
+      }
 
     } else {
+      if (this->telnetStarted) {
+        telnetStream->stop();
+        this->telnetStarted = false;
+      }
+
       if (tMqtt->isEnabled()) {
         tMqtt->disable();
       }
 
-      if (settings.emergency.enable && !vars.states.emergency) {
-        if (firstFailConnect == 0) {
-          firstFailConnect = millis();
+      if (!vars.states.emergency && settings.emergency.enable && settings.emergency.onNetworkFault) {
+        if (this->firstFailConnect == 0) {
+          this->firstFailConnect = millis();
         }
-        
-        if (millis() - firstFailConnect > EMERGENCY_TIME_TRESHOLD) {
+
+        if (millis() - this->firstFailConnect > (settings.emergency.tresholdTime * 1000)) {
           vars.states.emergency = true;
-          INFO("Emergency mode enabled");
+          Log.sinfoln(FPSTR(L_MAIN), F("Emergency mode enabled"));
         }
       }
     }
+    this->yield();
 
-    if (!tOt->isEnabled() && settings.opentherm.inPin > 0 && settings.opentherm.outPin > 0 && settings.opentherm.inPin != settings.opentherm.outPin) {
-      tOt->enable();
+
+    this->ledStatus();
+    this->externalPump();
+    this->yield();
+
+
+    // telnet
+    if (this->telnetStarted) {
+      telnetStream->loop();
+      this->yield();
     }
 
-    ledStatus();
-
-#ifdef USE_TELNET
-    yield();
 
     // anti memory leak
-    TelnetStream.flush();
-    while (TelnetStream.available() > 0) {
-      TelnetStream.read();
+    for (Stream* stream : Log.getStreams()) {
+      while (stream->available() > 0) {
+        stream->read();
+        #ifdef ARDUINO_ARCH_ESP8266
+        ::delay(0);
+        #endif
+      }
     }
-#endif
 
-    if (settings.debug) {
-      unsigned short freeHeapSize = ESP.getFreeHeap();
-      unsigned short minFreeHeapSizeDiff = 0;
+    // heap info
+    this->heap();
 
-      if (freeHeapSize < minFreeHeapSize) {
-        minFreeHeapSizeDiff = minFreeHeapSize - freeHeapSize;
-        minFreeHeapSize = freeHeapSize;
-      }
-      if (millis() - lastHeapInfo > 10000 || minFreeHeapSizeDiff > 0) {
-        DEBUG_F("Free heap size: %hu bytes, min: %hu bytes (diff: %hu bytes)\n", freeHeapSize, minFreeHeapSize, minFreeHeapSizeDiff);
-        lastHeapInfo = millis();
-      }
+
+    // restart
+    if (this->restartSignalTime > 0 && millis() - this->restartSignalTime > 10000) {
+      this->restartSignalTime = 0;
+      ESP.restart();
+    }
+  }
+
+  void heap() {
+    unsigned int freeHeap = getFreeHeap();
+    unsigned int maxFreeBlockHeap = getMaxFreeBlockHeap();
+
+    if (!this->restartSignalTime && (freeHeap < 2048 || maxFreeBlockHeap < 2048)) {
+      this->restartSignalTime = millis();
+    }
+
+    if (!settings.system.debug) {
+      return;
+    }
+
+    size_t minFreeHeap = getFreeHeap(true);
+    size_t minFreeHeapDiff = 0;
+    if (minFreeHeap < this->minFreeHeap || this->minFreeHeap == 0) {
+      minFreeHeapDiff = this->minFreeHeap - minFreeHeap;
+      this->minFreeHeap = minFreeHeap;
+    }
+    
+    size_t minMaxFreeBlockHeap = getMaxFreeBlockHeap(true);
+    size_t minMaxFreeBlockHeapDiff = 0;
+    if (minMaxFreeBlockHeap < this->minMaxFreeBlockHeap || this->minMaxFreeBlockHeap == 0) {
+      minMaxFreeBlockHeapDiff = this->minMaxFreeBlockHeap - minMaxFreeBlockHeap;
+      this->minMaxFreeBlockHeap = minMaxFreeBlockHeap;
+    }
+
+    if (millis() - this->lastHeapInfo > 20000 || minFreeHeapDiff > 0 || minMaxFreeBlockHeapDiff > 0) {
+      Log.sverboseln(
+        FPSTR(L_MAIN),
+        F("Free heap size: %u of %u bytes (min: %u, diff: %u), max free block: %u (min: %u, diff: %u, frag: %hhu%%)"),
+        freeHeap, getTotalHeap(), this->minFreeHeap, minFreeHeapDiff, maxFreeBlockHeap, this->minMaxFreeBlockHeap, minMaxFreeBlockHeapDiff, getHeapFrag()
+      );
+      this->lastHeapInfo = millis();
     }
   }
 
   void ledStatus() {
-    static byte blinkLeft = 0;
+    uint8_t errors[4];
+    uint8_t errCount = 0;
+    static uint8_t errPos = 0;
+    static unsigned long endBlinkTime = 0;
     static bool ledOn = false;
-    static unsigned long changeTime = 0;
+    static uint8_t configuredGpio = GPIO_IS_NOT_CONFIGURED;
 
-    byte errNo = 0;
-    if (!vars.states.otStatus) {
-      errNo = 1;
-    } else if (vars.states.fault) {
-      errNo = 2;
-    } else if (vars.states.emergency) {
-      errNo = 3;
+    if (settings.system.statusLedGpio != configuredGpio) {
+      if (configuredGpio != GPIO_IS_NOT_CONFIGURED) {
+        digitalWrite(configuredGpio, LOW);
+      }
+      
+      if (GPIO_IS_VALID(settings.system.statusLedGpio)) {
+        configuredGpio = settings.system.statusLedGpio;
+        pinMode(configuredGpio, OUTPUT);
+        digitalWrite(configuredGpio, LOW);
+        this->blinker->init(configuredGpio);
+
+      } else if (configuredGpio != GPIO_IS_NOT_CONFIGURED) {
+        configuredGpio = GPIO_IS_NOT_CONFIGURED;
+      }
     }
 
-    if (errNo == 0) {
-      if (!ledOn) {
-        digitalWrite(LED_STATUS_PIN, true);
-        ledOn = true;
-      }
+    if (configuredGpio == GPIO_IS_NOT_CONFIGURED) {
+      return;
+    }
 
-      if (blinkLeft > 0) {
-        blinkLeft = 0;
-      }
+    if (!network->isConnected()) {
+      errors[errCount++] = 2;
+    }
 
-    } else {
-      if (blinkLeft == 0) {
-        if (ledOn) {
-          digitalWrite(LED_STATUS_PIN, false);
-          ledOn = false;
-          changeTime = millis();
-        }
+    if (!vars.states.otStatus) {
+      errors[errCount++] = 3;
+    }
 
-        if (millis() - changeTime >= 3000) {
-          blinkLeft = errNo;
-        }
-      }
+    if (vars.states.fault) {
+      errors[errCount++] = 4;
+    }
 
-      if (blinkLeft > 0 && millis() - changeTime >= 500) {
-        if (ledOn) {
-          digitalWrite(LED_STATUS_PIN, false);
-          ledOn = false;
-          blinkLeft--;
+    if (vars.states.emergency) {
+      errors[errCount++] = 5;
+    }
 
-        } else {
-          digitalWrite(LED_STATUS_PIN, true);
+
+    if (this->blinker->ready()) {
+      endBlinkTime = millis();
+    }
+
+    if (!this->blinker->running() && millis() - endBlinkTime >= 5000) {
+      if (errCount == 0) {
+        if (!ledOn) {
+          digitalWrite(configuredGpio, HIGH);
           ledOn = true;
         }
 
-        changeTime = millis();
+        return;
+
+      } else if (ledOn) {
+        digitalWrite(configuredGpio, LOW);
+        ledOn = false;
+        endBlinkTime = millis();
+        return;
       }
+
+      if (errPos >= errCount) {
+        errPos = 0;
+
+        // end of error list
+        this->blinker->blink(10, 50, 50);
+
+      } else {
+        this->blinker->blink(errors[errPos++], 300, 300);
+      }
+    }
+
+    this->blinker->tick();
+  }
+
+  void externalPump() {
+    static uint8_t configuredGpio = GPIO_IS_NOT_CONFIGURED;
+
+    if (settings.externalPump.gpio != configuredGpio) {
+      if (configuredGpio != GPIO_IS_NOT_CONFIGURED) {
+        digitalWrite(configuredGpio, LOW);
+      }
+      
+      if (GPIO_IS_VALID(settings.externalPump.gpio)) {
+        configuredGpio = settings.externalPump.gpio;
+        pinMode(configuredGpio, OUTPUT);
+        digitalWrite(configuredGpio, LOW);
+
+      } else if (configuredGpio != GPIO_IS_NOT_CONFIGURED) {
+        configuredGpio = GPIO_IS_NOT_CONFIGURED;
+      }
+    }
+
+    if (configuredGpio == GPIO_IS_NOT_CONFIGURED) {
+      if (vars.states.externalPump) {
+        vars.states.externalPump = false;
+        vars.parameters.extPumpLastEnableTime = millis();
+
+        Log.sinfoln("EXTPUMP", F("Disabled: use = off"));
+      }
+
+      return;
+    }
+
+    if (!vars.states.heating && this->heatingEnabled) {
+      this->heatingEnabled = false;
+      this->heatingDisabledTime = millis();
+
+    } else if (vars.states.heating && !this->heatingEnabled) {
+      this->heatingEnabled = true;
+    }
+    
+    if (!settings.externalPump.use) {
+      if (vars.states.externalPump) {
+        digitalWrite(configuredGpio, LOW);
+
+        vars.states.externalPump = false;
+        vars.parameters.extPumpLastEnableTime = millis();
+
+        Log.sinfoln("EXTPUMP", F("Disabled: use = off"));
+      }
+
+      return;
+    }
+
+    if (vars.states.externalPump && !this->heatingEnabled) {
+      if (this->extPumpStartReason == MainTask::PumpStartReason::HEATING && millis() - this->heatingDisabledTime > (settings.externalPump.postCirculationTime * 1000u)) {
+        digitalWrite(configuredGpio, LOW);
+
+        vars.states.externalPump = false;
+        vars.parameters.extPumpLastEnableTime = millis();
+
+        Log.sinfoln("EXTPUMP", F("Disabled: expired post circulation time"));
+
+      } else if (this->extPumpStartReason == MainTask::PumpStartReason::ANTISTUCK && millis() - this->externalPumpStartTime >= (settings.externalPump.antiStuckTime * 1000u)) {
+        digitalWrite(configuredGpio, LOW);
+
+        vars.states.externalPump = false;
+        vars.parameters.extPumpLastEnableTime = millis();
+
+        Log.sinfoln("EXTPUMP", F("Disabled: expired anti stuck time"));
+      }
+
+    } else if (vars.states.externalPump && this->heatingEnabled && this->extPumpStartReason == MainTask::PumpStartReason::ANTISTUCK) {
+      this->extPumpStartReason = MainTask::PumpStartReason::HEATING;
+
+    } else if (!vars.states.externalPump && this->heatingEnabled) {
+      vars.states.externalPump = true;
+      this->externalPumpStartTime = millis();
+      this->extPumpStartReason = MainTask::PumpStartReason::HEATING;
+
+      digitalWrite(configuredGpio, HIGH);
+
+      Log.sinfoln("EXTPUMP", F("Enabled: heating on"));
+
+    } else if (!vars.states.externalPump && (vars.parameters.extPumpLastEnableTime == 0 || millis() - vars.parameters.extPumpLastEnableTime >= (settings.externalPump.antiStuckInterval * 1000ul))) {
+      vars.states.externalPump = true;
+      this->externalPumpStartTime = millis();
+      this->extPumpStartReason = MainTask::PumpStartReason::ANTISTUCK;
+
+      digitalWrite(configuredGpio, HIGH);
+
+      Log.sinfoln("EXTPUMP", F("Enabled: anti stuck"));
     }
   }
 };

src/PortalTask.h

@@ -0,0 +1,675 @@
+#define PORTAL_CACHE_TIME "max-age=86400"
+#define PORTAL_CACHE settings.system.debug ? nullptr : PORTAL_CACHE_TIME
+#ifdef ARDUINO_ARCH_ESP8266
+#include <ESP8266WebServer.h>
+#include <Updater.h>
+using WebServer = ESP8266WebServer;
+#else
+#include <WebServer.h>
+#include <Update.h>
+#endif
+#include <BufferedWebServer.h>
+#include <StaticPage.h>
+#include <DynamicPage.h>
+#include <UpgradeHandler.h>
+#include <DNSServer.h>
+
+extern Network::Manager* network;
+extern FileData fsSettings, fsNetworkSettings;
+extern MqttTask* tMqtt;
+
+
+class PortalTask : public LeanTask {
+public:
+  PortalTask(bool _enabled = false, unsigned long _interval = 0) : LeanTask(_enabled, _interval) {
+    this->webServer = new WebServer(80);
+    this->bufferedWebServer = new BufferedWebServer(this->webServer, 32u);
+    this->dnsServer = new DNSServer();
+  }
+
+  ~PortalTask() {
+    delete this->bufferedWebServer;
+
+    if (this->webServer != nullptr) {
+      this->stopWebServer();
+      delete this->webServer;
+    }
+
+    if (this->dnsServer != nullptr) {
+      this->stopDnsServer();
+      delete this->dnsServer;
+    }
+  }
+
+protected:
+  const unsigned int changeStateInterval = 5000;
+
+  WebServer* webServer = nullptr;
+  BufferedWebServer* bufferedWebServer = nullptr;
+  DNSServer* dnsServer = nullptr;
+
+  bool webServerEnabled = false;
+  bool dnsServerEnabled = false;
+  unsigned long webServerChangeState = 0;
+  unsigned long dnsServerChangeState = 0;
+
+  const char* getTaskName() {
+    return "Portal";
+  }
+
+  /*int getTaskCore() {
+    return 1;
+  }*/
+
+  int getTaskPriority() {
+    return 1;
+  }
+
+  void setup() {
+    this->dnsServer->setTTL(0);
+    this->dnsServer->setErrorReplyCode(DNSReplyCode::NoError);
+    #ifdef ARDUINO_ARCH_ESP8266
+    this->webServer->enableETag(true);
+    #endif
+
+    // index page
+    /*auto indexPage = (new DynamicPage("/", &LittleFS, "/index.html"))
+      ->setTemplateCallback([](const char* var) -> String {
+        String result;
+
+        if (strcmp(var, "ver") == 0) {
+          result = PROJECT_VERSION;
+        }
+
+        return result;
+      });
+    this->webServer->addHandler(indexPage);*/
+    this->webServer->addHandler(new StaticPage("/", &LittleFS, "/index.html", PORTAL_CACHE));
+
+    // dashboard page
+    auto dashboardPage = (new StaticPage("/dashboard.html", &LittleFS, "/dashboard.html", PORTAL_CACHE))
+      ->setBeforeSendCallback([this]() {
+        if (this->isAuthRequired() && !this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          this->webServer->requestAuthentication(DIGEST_AUTH);
+          return false;
+        }
+
+        return true;
+      });
+    this->webServer->addHandler(dashboardPage);
+
+    // restart
+    this->webServer->on("/restart.html", HTTP_GET, [this]() {
+      if (this->isAuthRequired()) {
+        if (!this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          this->webServer->send(401);
+          return;
+        }
+      }
+
+      vars.actions.restart = true;
+      this->webServer->sendHeader("Location", "/");
+      this->webServer->send(302);
+    });
+
+    // network settings page
+    auto networkPage = (new StaticPage("/network.html", &LittleFS, "/network.html", PORTAL_CACHE))
+      ->setBeforeSendCallback([this]() {
+        if (this->isAuthRequired() && !this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          this->webServer->requestAuthentication(DIGEST_AUTH);
+          return false;
+        }
+
+        return true;
+      });
+    this->webServer->addHandler(networkPage);
+
+    // settings page
+    auto settingsPage = (new StaticPage("/settings.html", &LittleFS, "/settings.html", PORTAL_CACHE))
+      ->setBeforeSendCallback([this]() {
+        if (this->isAuthRequired() && !this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          this->webServer->requestAuthentication(DIGEST_AUTH);
+          return false;
+        }
+
+        return true;
+      });
+    this->webServer->addHandler(settingsPage);
+
+    // upgrade page
+    auto upgradePage = (new StaticPage("/upgrade.html", &LittleFS, "/upgrade.html", PORTAL_CACHE))
+      ->setBeforeSendCallback([this]() {
+        if (this->isAuthRequired() && !this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          this->webServer->requestAuthentication(DIGEST_AUTH);
+          return false;
+        }
+
+        return true;
+      });
+    this->webServer->addHandler(upgradePage);
+
+    // OTA
+    auto upgradeHandler = (new UpgradeHandler("/api/upgrade"))->setCanUploadCallback([this](const String& uri) {
+      if (this->isAuthRequired() && !this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+        this->webServer->sendHeader("Connection", "close");
+        this->webServer->send(401);
+        return false;
+      }
+
+      return true;
+    })->setBeforeUpgradeCallback([](UpgradeHandler::UpgradeType type) -> bool {
+      return true;
+    })->setAfterUpgradeCallback([this](const UpgradeHandler::UpgradeResult& fwResult, const UpgradeHandler::UpgradeResult& fsResult) {
+      unsigned short status = 200;
+      if (fwResult.status == UpgradeHandler::UpgradeStatus::SUCCESS || fsResult.status == UpgradeHandler::UpgradeStatus::SUCCESS) {
+        vars.actions.restart = true;
+
+      } else {
+        status = 400;
+      }
+
+      String response = "{\"firmware\": {\"status\": ";
+      response.concat((short int) fwResult.status);
+      response.concat(", \"error\": \"");
+      response.concat(fwResult.error);
+      response.concat("\"}, \"filesystem\": {\"status\": ");
+      response.concat((short int) fsResult.status);
+      response.concat(", \"error\": \"");
+      response.concat(fsResult.error);
+      response.concat("\"}}");
+      this->webServer->send(status, "application/json", response);
+    });
+    this->webServer->addHandler(upgradeHandler);
+
+
+    // backup
+    this->webServer->on("/api/backup/save", HTTP_GET, [this]() {
+      if (this->isAuthRequired()) {
+        if (!this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          return this->webServer->send(401);
+        }
+      }
+
+      JsonDocument networkSettingsDoc;
+      networkSettingsToJson(networkSettings, networkSettingsDoc);
+      networkSettingsDoc.shrinkToFit();
+
+      JsonDocument settingsDoc;
+      settingsToJson(settings, settingsDoc);
+      settingsDoc.shrinkToFit();
+
+      JsonDocument doc;
+      doc["network"] = networkSettingsDoc;
+      doc["settings"] = settingsDoc;
+      doc.shrinkToFit();
+
+      this->webServer->sendHeader(F("Content-Disposition"), F("attachment; filename=\"backup.json\""));
+      this->bufferedWebServer->send(200, "application/json", doc);
+    });
+
+    this->webServer->on("/api/backup/restore", HTTP_POST, [this]() {
+      if (this->isAuthRequired()) {
+        if (!this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          return this->webServer->send(401);
+        }
+      }
+
+      String plain = this->webServer->arg(0);
+      Log.straceln(FPSTR(L_PORTAL_WEBSERVER), F("Request /api/backup/restore %d bytes: %s"), plain.length(), plain.c_str());
+
+      if (plain.length() < 5) {
+        this->webServer->send(406);
+        return;
+
+      } else if (plain.length() > 2048) {
+        this->webServer->send(413);
+        return;
+      }
+
+      JsonDocument doc;
+      DeserializationError dErr = deserializeJson(doc, plain);
+      plain.clear();
+
+      if (dErr != DeserializationError::Ok || doc.isNull() || !doc.size()) {
+        this->webServer->send(400);
+        return;
+      }
+
+      bool changed = false;
+      if (doc["settings"] && jsonToSettings(doc["settings"], settings)) {
+        vars.actions.restart = true;
+        fsSettings.update();
+        changed = true;
+      }
+
+      if (doc["network"] && jsonToNetworkSettings(doc["network"], networkSettings)) {
+        fsNetworkSettings.update();
+        network->setHostname(networkSettings.hostname)
+          ->setStaCredentials(networkSettings.sta.ssid, networkSettings.sta.password, networkSettings.sta.channel)
+          ->setUseDhcp(networkSettings.useDhcp)
+          ->setStaticConfig(
+            networkSettings.staticConfig.ip,
+            networkSettings.staticConfig.gateway,
+            networkSettings.staticConfig.subnet,
+            networkSettings.staticConfig.dns
+          )
+          ->reconnect();
+        changed = true;
+      }
+
+      doc.clear();
+      doc.shrinkToFit();
+
+      this->webServer->send(changed ? 201 : 200);
+    });
+
+    // network
+    this->webServer->on("/api/network/settings", HTTP_GET, [this]() {
+      if (this->isAuthRequired()) {
+        if (!this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          return this->webServer->send(401);
+        }
+      }
+
+      JsonDocument doc;
+      networkSettingsToJson(networkSettings, doc);
+      doc.shrinkToFit();
+
+      this->bufferedWebServer->send(200, "application/json", doc);
+    });
+
+    this->webServer->on("/api/network/settings", HTTP_POST, [this]() {
+      if (this->isAuthRequired()) {
+        if (!this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          return this->webServer->send(401);
+        }
+      }
+
+      String plain = this->webServer->arg(0);
+      Log.straceln(FPSTR(L_PORTAL_WEBSERVER), F("Request /api/network/settings %d bytes: %s"), plain.length(), plain.c_str());
+
+      if (plain.length() < 5) {
+        this->webServer->send(406);
+        return;
+
+      } else if (plain.length() > 512) {
+        this->webServer->send(413);
+        return;
+      }
+
+      JsonDocument doc;
+      DeserializationError dErr = deserializeJson(doc, plain);
+      plain.clear();
+
+      if (dErr != DeserializationError::Ok || doc.isNull() || !doc.size()) {
+        this->webServer->send(400);
+        return;
+      }
+
+      bool changed = jsonToNetworkSettings(doc, networkSettings);
+      doc.clear();
+      doc.shrinkToFit();
+
+      networkSettingsToJson(networkSettings, doc);
+      doc.shrinkToFit();
+      
+      this->bufferedWebServer->send(changed ? 201 : 200, "application/json", doc);
+
+      if (changed) {
+        doc.clear();
+        doc.shrinkToFit();
+
+        fsNetworkSettings.update();
+        network->setHostname(networkSettings.hostname)
+          ->setStaCredentials(networkSettings.sta.ssid, networkSettings.sta.password, networkSettings.sta.channel)
+          ->setUseDhcp(networkSettings.useDhcp)
+          ->setStaticConfig(
+            networkSettings.staticConfig.ip,
+            networkSettings.staticConfig.gateway,
+            networkSettings.staticConfig.subnet,
+            networkSettings.staticConfig.dns
+          )
+          ->reconnect();
+      }
+    });
+
+    this->webServer->on("/api/network/scan", HTTP_GET, [this]() {
+      if (this->isAuthRequired()) {
+        if (!this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          this->webServer->send(401);
+          return;
+        }
+      }
+
+      auto apCount = WiFi.scanComplete();
+      if (apCount <= 0) {
+        if (apCount != WIFI_SCAN_RUNNING) {
+          #ifdef ARDUINO_ARCH_ESP8266
+          WiFi.scanNetworks(true, true);
+          #else
+          WiFi.scanNetworks(true, true, true);
+          #endif
+        }
+        
+        this->webServer->send(404);
+        return;
+      }
+      
+      JsonDocument doc;
+      for (short int i = 0; i < apCount; i++) {
+        String ssid = WiFi.SSID(i);
+        doc[i]["ssid"] = ssid;
+        doc[i]["signalQuality"] = Network::Manager::rssiToSignalQuality(WiFi.RSSI(i));
+        doc[i]["channel"] = WiFi.channel(i);
+        doc[i]["hidden"] = !ssid.length();
+        doc[i]["encryptionType"] = WiFi.encryptionType(i);
+      }
+      doc.shrinkToFit();
+
+      this->bufferedWebServer->send(200, "application/json", doc);
+
+      WiFi.scanDelete();
+    });
+
+
+    // settings
+    this->webServer->on("/api/settings", HTTP_GET, [this]() {
+      if (this->isAuthRequired()) {
+        if (!this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          return this->webServer->send(401);
+        }
+      }
+
+      JsonDocument doc;
+      settingsToJson(settings, doc);
+      doc.shrinkToFit();
+      
+      this->bufferedWebServer->send(200, "application/json", doc);
+    });
+
+    this->webServer->on("/api/settings", HTTP_POST, [this]() {
+      if (this->isAuthRequired()) {
+        if (!this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          return this->webServer->send(401);
+        }
+      }
+
+      String plain = this->webServer->arg(0);
+      Log.straceln(FPSTR(L_PORTAL_WEBSERVER), F("Request /api/settings %d bytes: %s"), plain.length(), plain.c_str());
+
+      if (plain.length() < 5) {
+        this->webServer->send(406);
+        return;
+
+      } else if (plain.length() > 2048) {
+        this->webServer->send(413);
+        return;
+      }
+
+      JsonDocument doc;
+      DeserializationError dErr = deserializeJson(doc, plain);
+      plain.clear();
+
+      if (dErr != DeserializationError::Ok || doc.isNull() || !doc.size()) {
+        this->webServer->send(400);
+        return;
+      }
+
+      bool changed = jsonToSettings(doc, settings);
+      doc.clear();
+      doc.shrinkToFit();
+
+      settingsToJson(settings, doc);
+      doc.shrinkToFit();
+
+      this->bufferedWebServer->send(changed ? 201 : 200, "application/json", doc);
+
+      if (changed) {
+        doc.clear();
+        doc.shrinkToFit();
+
+        fsSettings.update();
+        tMqtt->resetPublishedSettingsTime();
+      }
+    });
+
+
+    // vars
+    this->webServer->on("/api/vars", HTTP_GET, [this]() {
+      JsonDocument doc;
+      varsToJson(vars, doc);
+      doc.shrinkToFit();
+
+      this->bufferedWebServer->send(200, "application/json", doc);
+    });
+
+    this->webServer->on("/api/vars", HTTP_POST, [this]() {
+      if (this->isAuthRequired()) {
+        if (!this->webServer->authenticate(settings.portal.login, settings.portal.password)) {
+          return this->webServer->send(401);
+        }
+      }
+
+      String plain = this->webServer->arg(0);
+      Log.straceln(FPSTR(L_PORTAL_WEBSERVER), F("Request /api/vars %d bytes: %s"), plain.length(), plain.c_str());
+
+      if (plain.length() < 5) {
+        this->webServer->send(406);
+        return;
+
+      } else if (plain.length() > 1024) {
+        this->webServer->send(413);
+        return;
+      }
+
+      JsonDocument doc;
+      DeserializationError dErr = deserializeJson(doc, plain);
+      plain.clear();
+
+      if (dErr != DeserializationError::Ok || doc.isNull() || !doc.size()) {
+        this->webServer->send(400);
+        return;
+      }
+
+      bool changed = jsonToVars(doc, vars);
+      doc.clear();
+      doc.shrinkToFit();
+
+      varsToJson(vars, doc);
+      doc.shrinkToFit();
+      
+      this->bufferedWebServer->send(changed ? 201 : 200, "application/json", doc);
+
+      if (changed) {
+        doc.clear();
+        doc.shrinkToFit();
+        
+        tMqtt->resetPublishedVarsTime();
+      }
+    });
+
+    this->webServer->on("/api/info", HTTP_GET, [this]() {
+      bool isConnected = network->isConnected();
+
+      JsonDocument doc;
+      doc["network"]["hostname"] = networkSettings.hostname;
+      doc["network"]["mac"] = network->getStaMac();
+      doc["network"]["connected"] = isConnected;
+      doc["network"]["ssid"] = network->getStaSsid();
+      doc["network"]["signalQuality"] = isConnected ? Network::Manager::rssiToSignalQuality(network->getRssi()) : 0;
+      doc["network"]["channel"] = isConnected ? network->getStaChannel() : 0;
+      doc["network"]["ip"] = isConnected ? network->getStaIp().toString() : "";
+      doc["network"]["subnet"] = isConnected ? network->getStaSubnet().toString() : "";
+      doc["network"]["gateway"] = isConnected ? network->getStaGateway().toString() : "";
+      doc["network"]["dns"] = isConnected ? network->getStaDns().toString() : "";
+
+      doc["system"]["version"] = PROJECT_VERSION;
+      doc["system"]["buildDate"] = __DATE__ " " __TIME__;
+      doc["system"]["uptime"] = millis() / 1000ul;
+      doc["system"]["totalHeap"] = getTotalHeap();
+      doc["system"]["freeHeap"] = getFreeHeap();
+      doc["system"]["minFreeHeap"] = getFreeHeap(true);
+      doc["system"]["maxFreeBlockHeap"] = getMaxFreeBlockHeap();
+      doc["system"]["minMaxFreeBlockHeap"] = getMaxFreeBlockHeap(true);
+      doc["system"]["resetReason"] = getResetReason();
+      doc.shrinkToFit();
+
+      this->bufferedWebServer->send(200, "application/json", doc);
+    });
+
+
+    // not found
+    this->webServer->onNotFound([this]() {
+      Log.straceln(FPSTR(L_PORTAL_WEBSERVER), F("Page not found, uri: %s"), this->webServer->uri().c_str());
+
+      const String uri = this->webServer->uri();
+      if (uri.equals("/")) {
+        this->webServer->send(200, "text/plain", F("The file system is not flashed!"));
+
+      } else if (network->isApEnabled()) {
+        this->onCaptivePortal();
+
+      } else {
+        this->webServer->send(404, "text/plain", F("Page not found"));
+      }
+    });
+
+    this->webServer->serveStatic("/favicon.ico", LittleFS, "/static/favicon.ico", PORTAL_CACHE);
+    this->webServer->serveStatic("/static", LittleFS, "/static", PORTAL_CACHE);
+  }
+
+  void loop() {
+    // web server
+    if (!this->stateWebServer() && (network->isApEnabled() || network->isConnected()) && millis() - this->webServerChangeState >= this->changeStateInterval) {
+      this->startWebServer();
+      Log.straceln(FPSTR(L_PORTAL_WEBSERVER), F("Started: AP up or STA connected"));
+
+      #ifdef ARDUINO_ARCH_ESP8266
+      ::delay(0);
+      #endif
+
+    } else if (this->stateWebServer() && !network->isApEnabled() && !network->isStaEnabled()) {
+      this->stopWebServer();
+      Log.straceln(FPSTR(L_PORTAL_WEBSERVER), F("Stopped: AP and STA down"));
+
+      #ifdef ARDUINO_ARCH_ESP8266
+      ::delay(0);
+      #endif
+    }
+
+    // dns server
+    if (!this->stateDnsServer() && this->stateWebServer() && network->isApEnabled() && network->hasApClients() && millis() - this->dnsServerChangeState >= this->changeStateInterval) {
+      this->startDnsServer();
+      Log.straceln(FPSTR(L_PORTAL_DNSSERVER), F("Started: AP up"));
+      
+      #ifdef ARDUINO_ARCH_ESP8266
+      ::delay(0);
+      #endif
+
+    } else if (this->stateDnsServer() && (!network->isApEnabled() || !this->stateWebServer())) {
+      this->stopDnsServer();
+      Log.straceln(FPSTR(L_PORTAL_DNSSERVER), F("Stopped: AP down"));
+
+      #ifdef ARDUINO_ARCH_ESP8266
+      ::delay(0);
+      #endif
+    }
+
+    if (this->stateDnsServer()) {
+      this->dnsServer->processNextRequest();
+      #ifdef ARDUINO_ARCH_ESP8266
+      ::delay(0);
+      #endif
+    }
+
+    if (this->stateWebServer()) {
+      this->webServer->handleClient();
+    }
+  }
+
+  bool isAuthRequired() {
+    return !network->isApEnabled() && settings.portal.auth && strlen(settings.portal.password);
+  }
+
+  void onCaptivePortal() {
+    const String uri = this->webServer->uri();
+
+    if (uri.equals("/connecttest.txt")) {
+      this->webServer->sendHeader(F("Location"), F("http://logout.net"));
+      this->webServer->send(302);
+
+      Log.straceln(FPSTR(L_PORTAL_CAPTIVE), F("Redirect to http://logout.net with 302 code"));
+
+    } else if (uri.equals("/wpad.dat")) {
+      this->webServer->send(404);
+
+      Log.straceln(FPSTR(L_PORTAL_CAPTIVE), F("Send empty page with 404 code"));
+
+    } else if (uri.equals("/success.txt")) {
+      this->webServer->send(200);
+
+      Log.straceln(FPSTR(L_PORTAL_CAPTIVE), F("Send empty page with 200 code"));
+
+    } else {
+      String portalUrl = "http://" + network->getApIp().toString() + '/';
+
+      this->webServer->sendHeader("Location", portalUrl.c_str());
+      this->webServer->send(302);
+
+      Log.straceln(FPSTR(L_PORTAL_CAPTIVE), F("Redirect to portal page with 302 code"));
+    }
+  }
+
+  bool stateWebServer() {
+    return this->webServerEnabled;
+  }
+
+  void startWebServer() {
+    if (this->stateWebServer()) {
+      return;
+    }
+
+    this->webServer->begin();
+    #ifdef ARDUINO_ARCH_ESP8266
+    this->webServer->getServer().setNoDelay(true);
+    #endif
+    this->webServerEnabled = true;
+    this->webServerChangeState = millis();
+  }
+
+  void stopWebServer() {
+    if (!this->stateWebServer()) {
+      return;
+    }
+
+    this->webServer->handleClient();
+    this->webServer->stop();
+    this->webServerEnabled = false;
+    this->webServerChangeState = millis();
+  }
+
+  bool stateDnsServer() {
+    return this->dnsServerEnabled;
+  }
+
+  void startDnsServer() {
+    if (this->stateDnsServer()) {
+      return;
+    }
+
+    this->dnsServer->start(53, "*", network->getApIp());
+    this->dnsServerEnabled = true;
+    this->dnsServerChangeState = millis();
+  }
+
+  void stopDnsServer() {
+    if (!this->stateDnsServer()) {
+      return;
+    }
+
+    this->dnsServer->processNextRequest();
+    this->dnsServer->stop();
+    this->dnsServerEnabled = false;
+    this->dnsServerChangeState = millis();
+  }
+};

src/RegulatorTask.h

@@ -1,121 +1,134 @@
 #include <Equitherm.h>
 #include <GyverPID.h>
-#include <PIDtuner.h>
 
 Equitherm etRegulator;
 GyverPID pidRegulator(0, 0, 0);
-PIDtuner pidTuner;
 
-class RegulatorTask: public LeanTask {
+
+class RegulatorTask : public LeanTask {
 public:
-  RegulatorTask(bool _enabled = false, unsigned long _interval = 0): LeanTask(_enabled, _interval) {}
+  RegulatorTask(bool _enabled = false, unsigned long _interval = 0) : LeanTask(_enabled, _interval) {}
 
 protected:
-  bool tunerInit = false;
-  byte tunerState = 0;
-  byte tunerRegulator = 0;
   float prevHeatingTarget = 0;
   float prevEtResult = 0;
   float prevPidResult = 0;
 
+  const char* getTaskName() {
+    return "Regulator";
+  }
+  
+  /*int getTaskCore() {
+    return 1;
+  }*/
 
-  void setup() {}
+  int getTaskPriority() {
+    return 4;
+  }
+  
   void loop() {
-    byte newTemp = vars.parameters.heatingSetpoint;
+    float newTemp = vars.parameters.heatingSetpoint;
 
     if (vars.states.emergency) {
       if (settings.heating.turbo) {
         settings.heating.turbo = false;
 
-        INFO("[REGULATOR] Turbo mode auto disabled");
+        Log.sinfoln(FPSTR(L_REGULATOR), F("Turbo mode auto disabled"));
       }
 
-      newTemp = getEmergencyModeTemp();
+      newTemp = this->getEmergencyModeTemp();
 
     } else {
-      if (vars.tuning.enable || tunerInit) {
-        if (settings.heating.turbo) {
-          settings.heating.turbo = false;
+      if (settings.heating.turbo && (fabs(settings.heating.target - vars.temperatures.indoor) < 1 || !settings.heating.enable || (settings.equitherm.enable && settings.pid.enable))) {
+        settings.heating.turbo = false;
 
-          INFO("[REGULATOR] Turbo mode auto disabled");
-        }
-
-        newTemp = getTuningModeTemp();
-
-        if (newTemp == 0) {
-          vars.tuning.enable = false;
-        }
+        Log.sinfoln(FPSTR(L_REGULATOR), F("Turbo mode auto disabled"));
       }
 
-      if (!vars.tuning.enable) {
-        if (settings.heating.turbo && (fabs(settings.heating.target - vars.temperatures.indoor) < 1 || (settings.equitherm.enable && settings.pid.enable))) {
-          settings.heating.turbo = false;
-
-          INFO("[REGULATOR] Turbo mode auto disabled");
-        }
-
-        newTemp = getNormalModeTemp();
-      }
+      newTemp = this->getNormalModeTemp();
     }
 
-    // Ограничиваем, если до этого не ограничило
-    if (newTemp < vars.parameters.heatingMinTemp || newTemp > vars.parameters.heatingMaxTemp) {
-      newTemp = constrain(newTemp, vars.parameters.heatingMinTemp, vars.parameters.heatingMaxTemp);
-    }
+    // Limits
+    newTemp = constrain(
+      newTemp,
+      !settings.opentherm.nativeHeatingControl ? settings.heating.minTemp : THERMOSTAT_INDOOR_MIN_TEMP,
+      !settings.opentherm.nativeHeatingControl ? settings.heating.maxTemp : THERMOSTAT_INDOOR_MAX_TEMP
+    );
 
-    if (abs(vars.parameters.heatingSetpoint - newTemp) + 0.0001 >= 1) {
+    if (fabs(vars.parameters.heatingSetpoint - newTemp) > 0.4999f) {
       vars.parameters.heatingSetpoint = newTemp;
     }
   }
 
 
-  byte getEmergencyModeTemp() {
+  float getEmergencyModeTemp() {
     float newTemp = 0;
 
     // if use equitherm
-    if (settings.emergency.useEquitherm && settings.sensors.outdoor.type != 1) {
-      float etResult = getEquithermTemp(vars.parameters.heatingMinTemp, vars.parameters.heatingMaxTemp);
+    if (settings.emergency.useEquitherm) {
+      float etResult = getEquithermTemp(settings.heating.minTemp, settings.heating.maxTemp);
 
-      if (fabs(prevEtResult - etResult) + 0.0001 >= 0.5) {
+      if (fabs(prevEtResult - etResult) > 0.4999f) {
         prevEtResult = etResult;
         newTemp += etResult;
 
-        INFO_F("[REGULATOR][EQUITHERM] New emergency result: %u (%f) \n", (int)round(etResult), etResult);
+        Log.sinfoln(FPSTR(L_REGULATOR_EQUITHERM), F("New emergency result: %.2f"), etResult);
 
       } else {
         newTemp += prevEtResult;
       }
 
+    } else if(settings.emergency.usePid) {
+      if (vars.parameters.heatingEnabled) {
+        float pidResult = getPidTemp(
+          settings.heating.minTemp,
+          settings.heating.maxTemp
+        );
+
+        if (fabs(prevPidResult - pidResult) > 0.4999f) {
+          prevPidResult = pidResult;
+          newTemp += pidResult;
+
+          Log.sinfoln(FPSTR(L_REGULATOR_PID), F("New emergency result: %.2f"), pidResult);
+
+        } else {
+          newTemp += prevPidResult;
+        }
+
+      } else if (!vars.parameters.heatingEnabled && prevPidResult != 0) {
+        newTemp += prevPidResult;
+      }
+
     } else {
       // default temp, manual mode
       newTemp = settings.emergency.target;
     }
 
-    return round(newTemp);
+    return newTemp;
   }
 
-  byte getNormalModeTemp() {
+  float getNormalModeTemp() {
     float newTemp = 0;
 
-    if (fabs(prevHeatingTarget - settings.heating.target) > 0.0001) {
+    if (fabs(prevHeatingTarget - settings.heating.target) > 0.0001f) {
       prevHeatingTarget = settings.heating.target;
-      INFO_F("[REGULATOR] New target: %f \n", settings.heating.target);
+      Log.sinfoln(FPSTR(L_REGULATOR), F("New target: %.2f"), settings.heating.target);
 
-      if (settings.equitherm.enable && settings.pid.enable) {
+      if (/*settings.equitherm.enable && */settings.pid.enable) {
         pidRegulator.integral = 0;
-        INFO_F("[REGULATOR][PID] Integral sum has been reset");
+        Log.sinfoln(FPSTR(L_REGULATOR_PID), F("Integral sum has been reset"));
       }
     }
 
     // if use equitherm
     if (settings.equitherm.enable) {
-      float etResult = getEquithermTemp(vars.parameters.heatingMinTemp, vars.parameters.heatingMaxTemp);
+      float etResult = getEquithermTemp(settings.heating.minTemp, settings.heating.maxTemp);
 
-      if (fabs(prevEtResult - etResult) + 0.0001 >= 0.5) {
+      if (fabs(prevEtResult - etResult) > 0.4999f) {
         prevEtResult = etResult;
         newTemp += etResult;
 
-        INFO_F("[REGULATOR][EQUITHERM] New result: %u (%f) \n", (int)round(etResult), etResult);
+        Log.sinfoln(FPSTR(L_REGULATOR_EQUITHERM), F("New result: %.2f"), etResult);
 
       } else {
         newTemp += prevEtResult;
@@ -123,24 +136,30 @@ protected:
     }
 
     // if use pid
-    if (settings.pid.enable && vars.parameters.heatingEnabled) {
-      float pidResult = getPidTemp(
-        settings.equitherm.enable ? (settings.pid.maxTemp * -1) : settings.pid.minTemp,
-        settings.equitherm.enable ? settings.pid.maxTemp : settings.pid.maxTemp
-      );
+    if (settings.pid.enable) {
+      if (vars.parameters.heatingEnabled) {
+        float pidResult = getPidTemp(
+          settings.equitherm.enable ? (settings.pid.maxTemp * -1) : settings.pid.minTemp,
+          settings.pid.maxTemp
+        );
 
-      if (fabs(prevPidResult - pidResult) + 0.0001 >= 0.5) {
-        prevPidResult = pidResult;
-        newTemp += pidResult;
+        if (fabs(prevPidResult - pidResult) > 0.4999f) {
+          prevPidResult = pidResult;
+          newTemp += pidResult;
 
-        INFO_F("[REGULATOR][PID] New result: %d (%f) \n", (int)round(pidResult), pidResult);
+          Log.sinfoln(FPSTR(L_REGULATOR_PID), F("New result: %.2f"), pidResult);
+          Log.straceln(FPSTR(L_REGULATOR_PID), F("Integral: %.2f"), pidRegulator.integral);
 
+        } else {
+          newTemp += prevPidResult;
+        }
       } else {
         newTemp += prevPidResult;
       }
 
-    } else if ( settings.pid.enable && !vars.parameters.heatingEnabled && prevPidResult != 0 ) {
-      newTemp += prevPidResult;
+    } else if (fabs(pidRegulator.integral) > 0.0001f) {
+        pidRegulator.integral = 0;
+        Log.sinfoln(FPSTR(L_REGULATOR_PID), F("Integral sum has been reset"));
     }
 
     // default temp, manual mode
@@ -148,103 +167,39 @@ protected:
       newTemp = settings.heating.target;
     }
 
-    newTemp = round(newTemp);
-    newTemp = constrain(newTemp, 0, 100);
     return newTemp;
   }
 
-  byte getTuningModeTemp() {
-    if (tunerInit && (!vars.tuning.enable || vars.tuning.regulator != tunerRegulator)) {
-      if (tunerRegulator == 0) {
-        pidTuner.reset();
-      }
-
-      tunerInit = false;
-      tunerRegulator = 0;
-      tunerState = 0;
-      INFO(F("[REGULATOR][TUNING] Stopped"));
-    }
-
-    if (!vars.tuning.enable) {
-      return 0;
-    }
-
-
-    if (vars.tuning.regulator == 0) {
-      // @TODO дописать
-      INFO(F("[REGULATOR][TUNING][EQUITHERM] Not implemented"));
-      return 0;
-
-    } else if (vars.tuning.regulator == 1) {
-      // PID tuner
-      float defaultTemp = settings.equitherm.enable
-        ? getEquithermTemp(vars.parameters.heatingMinTemp, vars.parameters.heatingMaxTemp)
-        : settings.heating.target;
-
-      if (tunerInit && pidTuner.getState() == 3) {
-        INFO(F("[REGULATOR][TUNING][PID] Finished"));
-        pidTuner.debugText(&INFO_STREAM);
-
-        pidTuner.reset();
-        tunerInit = false;
-        tunerRegulator = 0;
-        tunerState = 0;
-
-        if (pidTuner.getAccuracy() < 90) {
-          WARN(F("[REGULATOR][TUNING][PID] Bad result, try again..."));
-
-        } else {
-          settings.pid.p_factor = pidTuner.getPID_p();
-          settings.pid.i_factor = pidTuner.getPID_i();
-          settings.pid.d_factor = pidTuner.getPID_d();
-
-          return 0;
-        }
-      }
-
-      if (!tunerInit) {
-        INFO(F("[REGULATOR][TUNING][PID] Start..."));
-
-        float step;
-        if (vars.temperatures.indoor - vars.temperatures.outdoor > 10) {
-          step = ceil(vars.parameters.heatingSetpoint / vars.temperatures.indoor * 2);
-        } else {
-          step = 5.0f;
-        }
-
-        float startTemp = step;
-        INFO_F("[REGULATOR][TUNING][PID] Started. Start value: %f, step: %f \n", startTemp, step);
-        pidTuner.setParameters(NORMAL, startTemp, step, 20 * 60 * 1000, 0.15, 60 * 1000, 10000);
-        tunerInit = true;
-        tunerRegulator = 1;
-      }
-
-      pidTuner.setInput(vars.temperatures.indoor);
-      pidTuner.compute();
-
-      if (tunerState > 0 && pidTuner.getState() != tunerState) {
-        INFO(F("[REGULATOR][TUNING][PID] Log:"));
-        pidTuner.debugText(&INFO_STREAM);
-        tunerState = pidTuner.getState();
-      }
-
-      return round(defaultTemp + pidTuner.getOutput());
-
-    } else {
-      return 0;
-    }
-  }
-
+  /**
+   * @brief Get the Equitherm Temp
+   * Calculations in degrees C, conversion occurs when using F
+   * 
+   * @param minTemp 
+   * @param maxTemp 
+   * @return float 
+   */
   float getEquithermTemp(int minTemp, int maxTemp) {
+    float targetTemp = vars.states.emergency ? settings.emergency.target : settings.heating.target;
+    float indoorTemp = vars.temperatures.indoor;
+    float outdoorTemp = vars.temperatures.outdoor;
+
+    if (settings.system.unitSystem == UnitSystem::IMPERIAL) {
+      minTemp = f2c(minTemp);
+      maxTemp = f2c(maxTemp);
+      targetTemp = f2c(targetTemp);
+      indoorTemp = f2c(indoorTemp);
+      outdoorTemp = f2c(outdoorTemp);
+    }
+
     if (vars.states.emergency) {
       etRegulator.Kt = 0;
       etRegulator.indoorTemp = 0;
-      etRegulator.outdoorTemp = vars.temperatures.outdoor;
+      etRegulator.outdoorTemp = outdoorTemp;
 
     } else if (settings.pid.enable) {
       etRegulator.Kt = 0;
-      etRegulator.indoorTemp = round(vars.temperatures.indoor);
-      etRegulator.outdoorTemp = round(vars.temperatures.outdoor);
+      etRegulator.indoorTemp = round(indoorTemp);
+      etRegulator.outdoorTemp = round(outdoorTemp);
 
     } else {
       if (settings.heating.turbo) {
@@ -252,56 +207,47 @@ protected:
       } else {
         etRegulator.Kt = settings.equitherm.t_factor;
       }
-      etRegulator.indoorTemp = vars.temperatures.indoor;
-      etRegulator.outdoorTemp = vars.temperatures.outdoor;
+      etRegulator.indoorTemp = indoorTemp;
+      etRegulator.outdoorTemp = outdoorTemp;
     }
 
     etRegulator.setLimits(minTemp, maxTemp);
     etRegulator.Kn = settings.equitherm.n_factor;
-    // etRegulator.Kn = tuneEquithermN(etRegulator.Kn, vars.temperatures.indoor, settings.heating.target, 300, 1800, 0.01, 1);
     etRegulator.Kk = settings.equitherm.k_factor;
-    etRegulator.targetTemp = vars.states.emergency ? settings.emergency.target : settings.heating.target;
+    etRegulator.targetTemp = targetTemp;
+    float result = etRegulator.getResult();
 
-    return etRegulator.getResult();
+    if (settings.system.unitSystem == UnitSystem::IMPERIAL) {
+      result = c2f(result);
+    }
+
+    return result;
   }
 
   float getPidTemp(int minTemp, int maxTemp) {
-    pidRegulator.Kp = settings.pid.p_factor;
-    pidRegulator.Ki = settings.pid.i_factor;
-    pidRegulator.Kd = settings.pid.d_factor;
+    if (fabs(pidRegulator.Kp - settings.pid.p_factor) >= 0.0001f) {
+      pidRegulator.Kp = settings.pid.p_factor;
+      pidRegulator.integral = 0;
+      Log.sinfoln(FPSTR(L_REGULATOR_PID), F("Integral sum has been reset"));
+    }
+
+    if (fabs(pidRegulator.Ki - settings.pid.i_factor) >= 0.0001f) {
+      pidRegulator.Ki = settings.pid.i_factor;
+      pidRegulator.integral = 0;
+      Log.sinfoln(FPSTR(L_REGULATOR_PID), F("Integral sum has been reset"));
+    }
+
+    if (fabs(pidRegulator.Kd - settings.pid.d_factor) >= 0.0001f) {
+      pidRegulator.Kd = settings.pid.d_factor;
+      pidRegulator.integral = 0;
+      Log.sinfoln(FPSTR(L_REGULATOR_PID), F("Integral sum has been reset"));
+    }
 
     pidRegulator.setLimits(minTemp, maxTemp);
+    pidRegulator.setDt(settings.pid.dt * 1000u);
     pidRegulator.input = vars.temperatures.indoor;
     pidRegulator.setpoint = settings.heating.target;
 
-    return pidRegulator.getResultNow();
+    return pidRegulator.getResultTimer();
   }
-
-  float tuneEquithermN(float ratio, float currentTemp, float setTemp, unsigned int dirtyInterval = 60, unsigned int accurateInterval = 1800, float accurateStep = 0.01, float accurateStepAfter = 1) {
-    static uint32_t _prevIteration = millis();
-
-    if (abs(currentTemp - setTemp) < accurateStepAfter) {
-      if (millis() - _prevIteration < (accurateInterval * 1000)) {
-        return ratio;
-      }
-
-      if (currentTemp - setTemp > 0.1f) {
-        ratio -= accurateStep;
-
-      } else if (currentTemp - setTemp < -0.1f) {
-        ratio += accurateStep;
-      }
-
-    } else {
-      if (millis() - _prevIteration < (dirtyInterval * 1000)) {
-        return ratio;
-      }
-
-      ratio = ratio * (setTemp / currentTemp);
-    }
-
-    _prevIteration = millis();
-    return ratio;
-  }
-
 };

src/SensorsTask.h

@@ -1,149 +1,375 @@
 #include <OneWire.h>
 #include <DallasTemperature.h>
 
-class SensorsTask: public LeanTask {
+#if USE_BLE
+  #include <NimBLEDevice.h>
+#endif
+
+class SensorsTask : public LeanTask {
 public:
-  SensorsTask(bool _enabled = false, unsigned long _interval = 0): LeanTask(_enabled, _interval) {}
+  SensorsTask(bool _enabled = false, unsigned long _interval = 0) : LeanTask(_enabled, _interval) {
+    this->oneWireOutdoorSensor = new OneWire();
+    this->outdoorSensor = new DallasTemperature(this->oneWireOutdoorSensor);
+    this->outdoorSensor->setWaitForConversion(false);
+
+    this->oneWireIndoorSensor = new OneWire();
+    this->indoorSensor = new DallasTemperature(this->oneWireIndoorSensor);
+    this->indoorSensor->setWaitForConversion(false);
+  }
+
+  ~SensorsTask() {
+    delete this->outdoorSensor;
+    delete this->oneWireOutdoorSensor;
+    delete this->indoorSensor;
+    delete this->oneWireIndoorSensor;
+  }
 
 protected:
-  OneWire* oneWireOutdoorSensor;
-  OneWire* oneWireIndoorSensor;
+  OneWire* oneWireOutdoorSensor = nullptr;
+  OneWire* oneWireIndoorSensor = nullptr;
 
-  DallasTemperature* outdoorSensor;
-  DallasTemperature* indoorSensor;
+  DallasTemperature* outdoorSensor = nullptr;
+  DallasTemperature* indoorSensor = nullptr;
 
   bool initOutdoorSensor = false;
-  unsigned long startConversionTime = 0;
+  unsigned long initOutdoorSensorTime = 0;
+  unsigned long startOutdoorConversionTime = 0;
   float filteredOutdoorTemp = 0;
   bool emptyOutdoorTemp = true;
-
+  
   bool initIndoorSensor = false;
+  unsigned long initIndoorSensorTime = 0;
+  unsigned long startIndoorConversionTime = 0;
   float filteredIndoorTemp = 0;
   bool emptyIndoorTemp = true;
 
+#if USE_BLE
+  BLEClient* pBleClient = nullptr;
+  bool initBleSensor = false;
+  bool initBleNotify = false;
+#endif
+
+  const char* getTaskName() {
+    return "Sensors";
+  }
+
+  /*int getTaskCore() {
+    return 1;
+  }*/
+
+  int getTaskPriority() {
+    return 4;
+  }
 
-  void setup() {}
   void loop() {
-    if ( settings.sensors.outdoor.type == 2 ) {
+    bool indoorTempUpdated = false;
+    bool outdoorTempUpdated = false;
+
+    if (settings.sensors.outdoor.type == SensorType::DS18B20 && GPIO_IS_VALID(settings.sensors.indoor.gpio)) {
       outdoorTemperatureSensor();
+      outdoorTempUpdated = true;
     }
 
-    if ( settings.sensors.indoor.type == 2 ) {
+    if (settings.sensors.indoor.type == SensorType::DS18B20 && GPIO_IS_VALID(settings.sensors.indoor.gpio)) {
       indoorTemperatureSensor();
+      indoorTempUpdated = true;
+    }
+    #if USE_BLE
+    else if (settings.sensors.indoor.type == SensorType::BLUETOOTH) {
+      indoorTemperatureBluetoothSensor();
+      indoorTempUpdated = true;
+    }
+    #endif
+
+    if (outdoorTempUpdated) {
+      float newTemp = settings.sensors.outdoor.offset;
+      if (settings.system.unitSystem == UnitSystem::METRIC) {
+        newTemp += this->filteredOutdoorTemp;
+
+      } else if (settings.system.unitSystem == UnitSystem::IMPERIAL) {
+        newTemp += c2f(this->filteredOutdoorTemp);
+      }
+
+      if (fabs(vars.temperatures.outdoor - newTemp) > 0.099f) {
+        vars.temperatures.outdoor = newTemp;
+        Log.sinfoln(FPSTR(L_SENSORS_OUTDOOR), F("New temp: %f"), vars.temperatures.outdoor);
+      }
+    }
+
+    if (indoorTempUpdated) {
+      float newTemp = settings.sensors.indoor.offset;
+      if (settings.system.unitSystem == UnitSystem::METRIC) {
+        newTemp += this->filteredIndoorTemp;
+
+      } else if (settings.system.unitSystem == UnitSystem::IMPERIAL) {
+        newTemp += c2f(this->filteredIndoorTemp);
+      }
+
+      if (fabs(vars.temperatures.indoor - newTemp) > 0.099f) {
+        vars.temperatures.indoor = newTemp;
+        Log.sinfoln(FPSTR(L_SENSORS_INDOOR), F("New temp: %f"), vars.temperatures.indoor);
+      }
     }
   }
 
+#if USE_BLE
+  void indoorTemperatureBluetoothSensor() {
+    static bool initBleNotify = false;
+    if (!initBleSensor && millis() > 5000) {
+      Log.sinfoln(FPSTR(L_SENSORS_BLE), F("Init BLE"));
+      BLEDevice::init("");
+
+      pBleClient = BLEDevice::createClient();
+      pBleClient->setConnectTimeout(5); 
+
+      initBleSensor = true;
+    }
+
+    if (!initBleSensor || pBleClient->isConnected()) {
+      return;
+    }
+    
+    // Reset init notify flag
+    this->initBleNotify = false;
+
+    // Connect to the remote BLE Server.
+    BLEAddress bleServerAddress(settings.sensors.indoor.bleAddresss);
+    if (!pBleClient->connect(bleServerAddress)) {
+      Log.swarningln(FPSTR(L_SENSORS_BLE), "Failed connecting to device at %s", bleServerAddress.toString().c_str());
+      return;
+    }
+
+    Log.sinfoln(FPSTR(L_SENSORS_BLE), "Connected to device at %s", bleServerAddress.toString().c_str());
+
+    NimBLEUUID serviceUUID((uint16_t) 0x181AU);
+    BLERemoteService* pRemoteService = pBleClient->getService(serviceUUID);
+    if (!pRemoteService) {
+      Log.straceln(FPSTR(L_SENSORS_BLE), F("Failed to find service UUID: %s"), serviceUUID.toString().c_str());
+      return;
+    }
+
+    Log.straceln(FPSTR(L_SENSORS_BLE), F("Found service UUID: %s"), serviceUUID.toString().c_str());
+
+    // 0x2A6E - Notify temperature x0.01C (pvvx)
+    if (!this->initBleNotify) {
+      NimBLEUUID charUUID((uint16_t) 0x2A6E);
+      BLERemoteCharacteristic* pRemoteCharacteristic = pRemoteService->getCharacteristic(charUUID);
+      if (pRemoteCharacteristic && pRemoteCharacteristic->canNotify()) {
+        Log.straceln(FPSTR(L_SENSORS_BLE), F("Found characteristic UUID: %s"), charUUID.toString().c_str());
+
+        this->initBleNotify = pRemoteCharacteristic->subscribe(true, [this](NimBLERemoteCharacteristic*, uint8_t* pData, size_t length, bool isNotify) {
+          if (length != 2) {
+            Log.swarningln(FPSTR(L_SENSORS_BLE), F("Invalid notification data"));
+            return;
+          }
+
+          float rawTemp = ((pData[0] | (pData[1] << 8)) * 0.01f);
+          Log.straceln(FPSTR(L_SENSORS_INDOOR), F("Raw temp: %f"), rawTemp);
+
+          if (this->emptyIndoorTemp) {
+            this->filteredIndoorTemp = rawTemp;
+            this->emptyIndoorTemp = false;
+
+          } else {
+            this->filteredIndoorTemp += (rawTemp - this->filteredIndoorTemp) * EXT_SENSORS_FILTER_K;
+          }
+
+          this->filteredIndoorTemp = floor(this->filteredIndoorTemp * 100) / 100;
+        });
+
+        if (this->initBleNotify) {
+          Log.straceln(FPSTR(L_SENSORS_BLE), F("Subscribed to characteristic UUID: %s"), charUUID.toString().c_str());
+
+        } else {
+          Log.swarningln(FPSTR(L_SENSORS_BLE), F("Failed to subscribe to characteristic UUID: %s"), charUUID.toString().c_str());
+        }
+      }
+    }
+
+    // 0x2A1F - Notify temperature x0.1C (atc1441/pvvx)
+    if (!this->initBleNotify) {
+      NimBLEUUID charUUID((uint16_t) 0x2A1F);
+      BLERemoteCharacteristic* pRemoteCharacteristic = pRemoteService->getCharacteristic(charUUID);
+      if (pRemoteCharacteristic && pRemoteCharacteristic->canNotify()) {
+        Log.straceln(FPSTR(L_SENSORS_BLE), F("Found characteristic UUID: %s"), charUUID.toString().c_str());
+
+        this->initBleNotify = pRemoteCharacteristic->subscribe(true, [this](NimBLERemoteCharacteristic*, uint8_t* pData, size_t length, bool isNotify) {
+          if (length != 2) {
+            Log.swarningln(FPSTR(L_SENSORS_BLE), F("Invalid notification data"));
+            return;
+          }
+
+          float rawTemp = ((pData[0] | (pData[1] << 8)) * 0.1);
+          Log.straceln(FPSTR(L_SENSORS_INDOOR), F("Raw temp: %f"), rawTemp);
+
+          if (this->emptyIndoorTemp) {
+            this->filteredIndoorTemp = rawTemp;
+            this->emptyIndoorTemp = false;
+
+          } else {
+            this->filteredIndoorTemp += (rawTemp - this->filteredIndoorTemp) * EXT_SENSORS_FILTER_K;
+          }
+
+          this->filteredIndoorTemp = floor(this->filteredIndoorTemp * 100) / 100;
+        });
+
+        if (this->initBleNotify) {
+          Log.straceln(FPSTR(L_SENSORS_BLE), F("Subscribed to characteristic UUID: %s"), charUUID.toString().c_str());
+          
+        } else {
+          Log.swarningln(FPSTR(L_SENSORS_BLE), F("Failed to subscribe to characteristic UUID: %s"), charUUID.toString().c_str());
+        }
+      }
+    }
+
+    if (!this->initBleNotify) {
+      Log.swarningln(FPSTR(L_SENSORS_BLE), F("Not found supported characteristics"));
+      pBleClient->disconnect();
+    }
+  }
+#endif
+
   void outdoorTemperatureSensor() {
-    if ( !initOutdoorSensor ) {
-      oneWireOutdoorSensor = new OneWire(settings.sensors.outdoor.pin);
-      outdoorSensor = new DallasTemperature(oneWireOutdoorSensor);
-      outdoorSensor->begin();
-      outdoorSensor->setResolution(12);
-      outdoorSensor->setWaitForConversion(false);
-      outdoorSensor->requestTemperatures();
-      startConversionTime = millis();
-      initOutdoorSensor = true;
-    }
+    if (!this->initOutdoorSensor) {
+      if (this->initOutdoorSensorTime && millis() - this->initOutdoorSensorTime < EXT_SENSORS_INTERVAL * 10) {
+        return;
+      }
 
-    unsigned long estimateConversionTime = millis() - startConversionTime;
-    if ( estimateConversionTime < outdoorSensor->millisToWaitForConversion() ) {
-      return;
-    }
+      Log.sinfoln(FPSTR(L_SENSORS_OUTDOOR), F("Starting on GPIO %hhu..."), settings.sensors.outdoor.gpio);
 
-    bool completed = outdoorSensor->isConversionComplete();
-    if ( !completed && estimateConversionTime >= 1000 ) {
-      // fail, retry
-      outdoorSensor->requestTemperatures();
-      startConversionTime = millis();
+      this->oneWireOutdoorSensor->begin(settings.sensors.outdoor.gpio);
+      this->oneWireOutdoorSensor->reset();
+      this->outdoorSensor->begin();
+      this->initOutdoorSensorTime = millis();
 
-      ERROR("[SENSORS][OUTDOOR] Could not read temperature data (no response)");
-    }
+      Log.straceln(
+        FPSTR(L_SENSORS_OUTDOOR),
+        F("Devices on bus: %hhu, DS18* devices: %hhu"),
+        this->outdoorSensor->getDeviceCount(),
+        this->outdoorSensor->getDS18Count()
+      );
 
-    if ( !completed ) {
-      return;
-    }
+      if (this->outdoorSensor->getDeviceCount() > 0) {
+        this->initOutdoorSensor = true;
+        this->outdoorSensor->setResolution(12);
+        this->outdoorSensor->requestTemperatures();
+        this->startOutdoorConversionTime = millis();
 
-    float rawTemp = outdoorSensor->getTempCByIndex(0);
-    if (rawTemp == DEVICE_DISCONNECTED_C) {
-      ERROR("[SENSORS][OUTDOOR] Could not read temperature data (not connected)");
-
-    } else {
-      DEBUG_F("[SENSORS][OUTDOOR] Raw temp: %f \n", rawTemp);
-
-      if (emptyOutdoorTemp) {
-        filteredOutdoorTemp = rawTemp;
-        emptyOutdoorTemp = false;
+        Log.sinfoln(FPSTR(L_SENSORS_OUTDOOR), F("Started"));
 
       } else {
-        filteredOutdoorTemp += (rawTemp - filteredOutdoorTemp) * EXT_SENSORS_FILTER_K;
-      }
-
-      filteredOutdoorTemp = floor(filteredOutdoorTemp * 100) / 100;
-
-      if (fabs(vars.temperatures.outdoor - filteredOutdoorTemp) > 0.099) {
-        vars.temperatures.outdoor = filteredOutdoorTemp + settings.sensors.outdoor.offset;
-        INFO_F("[SENSORS][OUTDOOR] New temp: %f \n", filteredOutdoorTemp);
+        return;
       }
     }
 
-    outdoorSensor->requestTemperatures();
-    startConversionTime = millis();
+    unsigned long estimateConversionTime = millis() - this->startOutdoorConversionTime;
+    if (estimateConversionTime < this->outdoorSensor->millisToWaitForConversion()) {
+      return;
+    }
+
+    bool completed = this->outdoorSensor->isConversionComplete();
+    if (!completed && estimateConversionTime >= 1000) {
+      this->initOutdoorSensor = false;
+
+      Log.serrorln(FPSTR(L_SENSORS_OUTDOOR), F("Could not read temperature data (no response)"));
+    }
+
+    if (!completed) {
+      return;
+    }
+
+    float rawTemp = this->outdoorSensor->getTempCByIndex(0);
+    if (rawTemp == DEVICE_DISCONNECTED_C) {
+      this->initOutdoorSensor = false;
+
+      Log.serrorln(FPSTR(L_SENSORS_OUTDOOR), F("Could not read temperature data (not connected)"));
+
+    } else {
+      Log.straceln(FPSTR(L_SENSORS_OUTDOOR), F("Raw temp: %f"), rawTemp);
+
+      if (this->emptyOutdoorTemp) {
+        this->filteredOutdoorTemp = rawTemp;
+        this->emptyOutdoorTemp = false;
+
+      } else {
+        this->filteredOutdoorTemp += (rawTemp - this->filteredOutdoorTemp) * EXT_SENSORS_FILTER_K;
+      }
+
+      this->filteredOutdoorTemp = floor(this->filteredOutdoorTemp * 100) / 100;
+      this->outdoorSensor->requestTemperatures();
+      this->startOutdoorConversionTime = millis();
+    }
   }
 
   void indoorTemperatureSensor() {
-    if ( !initIndoorSensor ) {
-      oneWireIndoorSensor = new OneWire(settings.sensors.indoor.pin);
-      indoorSensor = new DallasTemperature(oneWireIndoorSensor);
-      indoorSensor->begin();
-      indoorSensor->setResolution(12);
-      indoorSensor->setWaitForConversion(false);
-      indoorSensor->requestTemperatures();
-      startConversionTime = millis();
-      initIndoorSensor = true;
-    }
+    if (!this->initIndoorSensor) {
+      if (this->initIndoorSensorTime && millis() - this->initIndoorSensorTime < EXT_SENSORS_INTERVAL * 10) {
+        return;
+      }
+      
+      Log.sinfoln(FPSTR(L_SENSORS_INDOOR), F("Starting on GPIO %hhu..."), settings.sensors.indoor.gpio);
 
-    unsigned long estimateConversionTime = millis() - startConversionTime;
-    if ( estimateConversionTime < indoorSensor->millisToWaitForConversion() ) {
-      return;
-    }
+      this->oneWireIndoorSensor->begin(settings.sensors.indoor.gpio);
+      this->oneWireIndoorSensor->reset();
+      this->indoorSensor->begin();
+      this->initIndoorSensorTime = millis();
 
-    bool completed = indoorSensor->isConversionComplete();
-    if ( !completed && estimateConversionTime >= 1000 ) {
-      // fail, retry
-      indoorSensor->requestTemperatures();
-      startConversionTime = millis();
+      Log.straceln(
+        FPSTR(L_SENSORS_INDOOR),
+        F("Devices on bus: %hhu, DS18* devices: %hhu"),
+        this->indoorSensor->getDeviceCount(),
+        this->indoorSensor->getDS18Count()
+      );
 
-      ERROR("[SENSORS][INDOOR] Could not read temperature data (no response)");
-    }
+      if (this->indoorSensor->getDeviceCount() > 0) {
+        this->initIndoorSensor = true;
+        this->indoorSensor->setResolution(12);
+        this->indoorSensor->requestTemperatures();
+        this->startIndoorConversionTime = millis();
 
-    if ( !completed ) {
-      return;
-    }
-
-    float rawTemp = indoorSensor->getTempCByIndex(0);
-    if (rawTemp == DEVICE_DISCONNECTED_C) {
-      ERROR("[SENSORS][INDOOR] Could not read temperature data (not connected)");
-
-    } else {
-      DEBUG_F("[SENSORS][INDOOR] Raw temp: %f \n", rawTemp);
-
-      if (emptyIndoorTemp) {
-        filteredIndoorTemp = rawTemp;
-        emptyIndoorTemp = false;
+        Log.sinfoln(FPSTR(L_SENSORS_INDOOR), F("Started"));
 
       } else {
-        filteredIndoorTemp += (rawTemp - filteredIndoorTemp) * EXT_SENSORS_FILTER_K;
-      }
-
-      filteredIndoorTemp = floor(filteredIndoorTemp * 100) / 100;
-
-      if (fabs(vars.temperatures.indoor - filteredIndoorTemp) > 0.099) {
-        vars.temperatures.indoor = filteredIndoorTemp + settings.sensors.indoor.offset;
-        INFO_F("[SENSORS][INDOOR] New temp: %f \n", filteredIndoorTemp);
+        return;
       }
     }
 
-    indoorSensor->requestTemperatures();
-    startConversionTime = millis();
+    unsigned long estimateConversionTime = millis() - this->startIndoorConversionTime;
+    if (estimateConversionTime < this->indoorSensor->millisToWaitForConversion()) {
+      return;
+    }
+
+    bool completed = this->indoorSensor->isConversionComplete();
+    if (!completed && estimateConversionTime >= 1000) {
+      this->initIndoorSensor = false;
+
+      Log.serrorln(FPSTR(L_SENSORS_INDOOR), F("Could not read temperature data (no response)"));
+    }
+
+    if (!completed) {
+      return;
+    }
+
+    float rawTemp = this->indoorSensor->getTempCByIndex(0);
+    if (rawTemp == DEVICE_DISCONNECTED_C) {
+      this->initIndoorSensor = false;
+
+      Log.serrorln(FPSTR(L_SENSORS_INDOOR), F("Could not read temperature data (not connected)"));
+
+    } else {
+      Log.straceln(FPSTR(L_SENSORS_INDOOR), F("Raw temp: %f"), rawTemp);
+
+      if (this->emptyIndoorTemp) {
+        this->filteredIndoorTemp = rawTemp;
+        this->emptyIndoorTemp = false;
+
+      } else {
+        this->filteredIndoorTemp += (rawTemp - this->filteredIndoorTemp) * EXT_SENSORS_FILTER_K;
+      }
+
+      this->filteredIndoorTemp = floor(this->filteredIndoorTemp * 100) / 100;
+      this->indoorSensor->requestTemperatures();
+      this->startIndoorConversionTime = millis();
+    }
   }
 };

src/Settings.h

@@ -1,52 +1,114 @@
-struct Settings {
-  bool debug = false;
-  char hostname[80] = "opentherm";
+struct NetworkSettings {
+  char hostname[25] = DEFAULT_HOSTNAME;
+  bool useDhcp = true;
 
   struct {
-    byte inPin = 4;
-    byte outPin = 5;
+    char ip[16] = "192.168.0.100";
+    char gateway[16] = "192.168.0.1";
+    char subnet[16] = "255.255.255.0";
+    char dns[16] = "192.168.0.1";
+  } staticConfig;
+
+  struct {
+    char ssid[33] = DEFAULT_AP_SSID;
+    char password[65] = DEFAULT_AP_PASSWORD;
+    byte channel = 6;
+  } ap;
+
+  struct {
+    char ssid[33] = DEFAULT_STA_SSID;
+    char password[65] = DEFAULT_STA_PASSWORD;
+    byte channel = 0;
+  } sta;
+} networkSettings;
+
+struct Settings {
+  struct {
+    bool debug = DEBUG_BY_DEFAULT;
+
+    struct {
+      bool enable = USE_SERIAL;
+      unsigned int baudrate = 115200;
+    } serial;
+
+    struct {
+      bool enable = USE_TELNET;
+      unsigned short port = 23;
+    } telnet;
+
+    UnitSystem unitSystem = UnitSystem::METRIC;
+    byte statusLedGpio = DEFAULT_STATUS_LED_GPIO;
+  } system;
+
+  struct {
+    bool auth = false;
+    char login[13] = DEFAULT_PORTAL_LOGIN;
+    char password[33] = DEFAULT_PORTAL_PASSWORD;
+  } portal;
+
+  struct {
+    UnitSystem unitSystem = UnitSystem::METRIC;
+    byte inGpio = DEFAULT_OT_IN_GPIO;
+    byte outGpio = DEFAULT_OT_OUT_GPIO;
+    byte rxLedGpio = DEFAULT_OT_RX_LED_GPIO;
     unsigned int memberIdCode = 0;
     bool dhwPresent = true;
+    bool summerWinterMode = false;
+    bool heatingCh2Enabled = true;
+    bool heatingCh1ToCh2 = false;
+    bool dhwToCh2 = false;
+    bool dhwBlocking = false;
+    bool modulationSyncWithHeating = false;
+    bool getMinMaxTemp = true;
+    bool nativeHeatingControl = false;
   } opentherm;
 
   struct {
-    char server[80];
-    int port = 1883;
-    char user[32];
-    char password[32];
-    char prefix[80] = "opentherm";
-    unsigned int interval = 5000;
+    bool enable = false;
+    char server[81] = DEFAULT_MQTT_SERVER;
+    unsigned short port = DEFAULT_MQTT_PORT;
+    char user[33] = DEFAULT_MQTT_USER;
+    char password[33] = DEFAULT_MQTT_PASSWORD;
+    char prefix[33] = DEFAULT_MQTT_PREFIX;
+    unsigned short interval = 5;
+    bool homeAssistantDiscovery = true;
   } mqtt;
 
   struct {
     bool enable = true;
-    float target = 40.0f;
+    float target = DEFAULT_HEATING_TARGET_TEMP;
+    unsigned short tresholdTime = 120;
     bool useEquitherm = false;
+    bool usePid = false;
+    bool onNetworkFault = true;
+    bool onMqttFault = true;
   } emergency;
 
   struct {
     bool enable = true;
     bool turbo = false;
-    float target = 40.0f;
+    float target = DEFAULT_HEATING_TARGET_TEMP;
     float hysteresis = 0.5f;
-    byte minTemp = 20.0f;
-    byte maxTemp = 90.0f;
+    byte minTemp = DEFAULT_HEATING_MIN_TEMP;
+    byte maxTemp = DEFAULT_HEATING_MAX_TEMP;
+    byte maxModulation = 100;
   } heating;
 
   struct {
     bool enable = true;
-    byte target = 40;
-    byte minTemp = 30.0f;
-    byte maxTemp = 60.0f;
+    float target = DEFAULT_DHW_TARGET_TEMP;
+    byte minTemp = DEFAULT_DHW_MIN_TEMP;
+    byte maxTemp = DEFAULT_DHW_MAX_TEMP;
   } dhw;
 
   struct {
     bool enable = false;
-    float p_factor = 3;
-    float i_factor = 0.2f;
+    float p_factor = 2;
+    float i_factor = 0.0055f;
     float d_factor = 0;
-    byte minTemp = 0.0f;
-    byte maxTemp = 90.0f;
+    unsigned short dt = 180;
+    byte minTemp = 0;
+    byte maxTemp = DEFAULT_HEATING_MAX_TEMP;
   } pid;
 
   struct {
@@ -58,29 +120,31 @@ struct Settings {
 
   struct {
     struct {
-      // 0 - boiler, 1 - manual, 2 - ds18b20
-      byte type = 0;
-      byte pin = 12;
+      SensorType type = SensorType::BOILER;
+      byte gpio = DEFAULT_SENSOR_OUTDOOR_GPIO;
       float offset = 0.0f;
     } outdoor;
 
     struct {
-      // 1 - manual, 2 - ds18b20
-      byte type = 1;
-      byte pin = 14;
+      SensorType type = SensorType::MANUAL;
+      byte gpio = DEFAULT_SENSOR_INDOOR_GPIO;
+      uint8_t bleAddresss[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
       float offset = 0.0f;
     } indoor;
   } sensors;
 
+  struct {
+    bool use = false;
+    byte gpio = DEFAULT_EXT_PUMP_GPIO;
+    unsigned short postCirculationTime = 600;
+    unsigned int antiStuckInterval = 2592000;
+    unsigned short antiStuckTime = 300;
+  } externalPump;
+
   char validationValue[8] = SETTINGS_VALID_VALUE;
 } settings;
 
 struct Variables {
-  struct {
-    bool enable = false;
-    byte regulator = 0;
-  } tuning;
-
   struct {
     bool otStatus = false;
     bool emergency = false;
@@ -89,33 +153,51 @@ struct Variables {
     bool flame = false;
     bool fault = false;
     bool diagnostic = false;
-    byte faultCode = 0;
-    int8_t rssi = 0;
+    bool externalPump = false;
+    bool mqtt = false;
   } states;
 
   struct {
     float modulation = 0.0f;
     float pressure = 0.0f;
+    float dhwFlowRate = 0.0f;
+    byte faultCode = 0;
+    int8_t rssi = 0;
   } sensors;
 
   struct {
     float indoor = 0.0f;
     float outdoor = 0.0f;
     float heating = 0.0f;
+    float heatingReturn = 0.0f;
     float dhw = 0.0f;
+    float exhaust = 0.0f;
   } temperatures;
 
   struct {
     bool heatingEnabled = false;
-    byte heatingMinTemp = 0;
-    byte heatingMaxTemp = 0;
-    byte heatingSetpoint = 0.0f;
-    byte dhwMinTemp = 0;
-    byte dhwMaxTemp = 0;
-    uint8_t slaveMemberIdCode;
-    uint8_t slaveType;
-    uint8_t slaveVersion;
-    uint8_t masterType;
-    uint8_t masterVersion;
+    byte heatingMinTemp = DEFAULT_HEATING_MIN_TEMP;
+    byte heatingMaxTemp = DEFAULT_HEATING_MAX_TEMP;
+    float heatingSetpoint = 0;
+    unsigned long extPumpLastEnableTime = 0;
+    byte dhwMinTemp = DEFAULT_DHW_MIN_TEMP;
+    byte dhwMaxTemp = DEFAULT_DHW_MAX_TEMP;
+    byte maxModulation = 0;
+    uint8_t slaveMemberId = 0;
+    uint8_t slaveFlags = 0;
+    uint8_t slaveType = 0;
+    uint8_t slaveVersion = 0;
+    float slaveOtVersion = 0.0f;
+    uint8_t masterMemberId = 0;
+    uint8_t masterFlags = 0;
+    uint8_t masterType = 0;
+    uint8_t masterVersion = 0;
+    float masterOtVersion = 0;
   } parameters;
+
+  struct {
+    bool restart = false;
+    bool resetFault = false;
+    bool resetDiagnostic = false;
+  } actions;
 } vars;

src/WifiManagerTask.h

@@ -1,165 +0,0 @@
-#include <WiFiManager.h>
-#include <WiFiManagerParameters.h>
-
-// Wifimanager
-WiFiManager wm;
-WiFiManagerParameter* wmHostname;
-WiFiManagerParameter* wmMqttServer;
-IntParameter* wmMqttPort;
-WiFiManagerParameter* wmMqttUser;
-WiFiManagerParameter* wmMqttPassword;
-WiFiManagerParameter* wmMqttPrefix;
-IntParameter* wmMqttPublishInterval;
-IntParameter* wmOtInPin;
-IntParameter* wmOtOutPin;
-IntParameter* wmOtMemberIdCode;
-CheckboxParameter* wmOtDHWPresent;
-IntParameter* wmOutdoorSensorPin;
-IntParameter* wmIndoorSensorPin;
-
-SeparatorParameter* wmSep1;
-SeparatorParameter* wmSep2;
-
-class WifiManagerTask : public Task {
-public:
-  WifiManagerTask(bool _enabled = false, unsigned long _interval = 0) : Task(_enabled, _interval) {}
-
-protected:
-  void setup() {
-    //WiFi.mode(WIFI_STA);
-    wm.setDebugOutput(settings.debug);
-
-    wmHostname = new WiFiManagerParameter("hostname", "Hostname", settings.hostname, 80);
-    wm.addParameter(wmHostname);
-
-    wmMqttServer = new WiFiManagerParameter("mqtt_server", "MQTT server", settings.mqtt.server, 80);
-    wm.addParameter(wmMqttServer);
-
-    wmMqttPort = new IntParameter("mqtt_port", "MQTT port", settings.mqtt.port, 6);
-    wm.addParameter(wmMqttPort);
-
-    wmMqttUser = new WiFiManagerParameter("mqtt_user", "MQTT username", settings.mqtt.user, 32);
-    wm.addParameter(wmMqttUser);
-
-    wmMqttPassword = new WiFiManagerParameter("mqtt_password", "MQTT password", settings.mqtt.password, 32, "type=\"password\"");
-    wm.addParameter(wmMqttPassword);
-
-    wmMqttPrefix = new WiFiManagerParameter("mqtt_prefix", "MQTT prefix", settings.mqtt.prefix, 32);
-    wm.addParameter(wmMqttPrefix);
-
-    wmMqttPublishInterval = new IntParameter("mqtt_publish_interval", "MQTT publish interval", settings.mqtt.interval, 5);
-    wm.addParameter(wmMqttPublishInterval);
-
-    wmSep1 = new SeparatorParameter();
-    wm.addParameter(wmSep1);
-
-    wmOtInPin = new IntParameter("ot_in_pin", "Opentherm pin IN", settings.opentherm.inPin, 2);
-    wm.addParameter(wmOtInPin);
-
-    wmOtOutPin = new IntParameter("ot_out_pin", "Opentherm pin OUT", settings.opentherm.outPin, 2);
-    wm.addParameter(wmOtOutPin);
-
-    wmOtMemberIdCode = new IntParameter("ot_member_id_code", "Opentherm member id", settings.opentherm.memberIdCode, 5);
-    wm.addParameter(wmOtMemberIdCode);
-
-    wmOtDHWPresent = new CheckboxParameter("ot_dhw_present", "Opentherm DHW present", settings.opentherm.dhwPresent);
-    wm.addParameter(wmOtDHWPresent);
-
-    wmSep2 = new SeparatorParameter();
-    wm.addParameter(wmSep2);
-
-    wmOutdoorSensorPin = new IntParameter("outdoor_sensor_pin", "Outdoor sensor pin", settings.sensors.outdoor.pin, 2);
-    wm.addParameter(wmOutdoorSensorPin);
-
-    wmIndoorSensorPin = new IntParameter("indoor_sensor_pin", "Indoor sensor pin", settings.sensors.indoor.pin, 2);
-    wm.addParameter(wmIndoorSensorPin);
-
-    //wm.setCleanConnect(true);
-    wm.setRestorePersistent(false);
-
-    wm.setHostname(settings.hostname);
-    wm.setWiFiAutoReconnect(true);
-    wm.setAPClientCheck(true);
-    wm.setConfigPortalBlocking(false);
-    wm.setSaveParamsCallback(saveParamsCallback);
-    wm.setConfigPortalTimeout(180);
-    //wm.setDisableConfigPortal(false);
-
-    wm.autoConnect(AP_SSID, AP_PASSWORD);
-  }
-
-  void loop() {
-    /*if (WiFi.status() != WL_CONNECTED && !wm.getWebPortalActive() && !wm.getConfigPortalActive()) {
-      wm.autoConnect(AP_SSID);
-    }*/
-
-    if (connected && WiFi.status() != WL_CONNECTED) {
-      connected = false;
-      INFO("[wifi] Disconnected");
-
-    } else if (!connected && WiFi.status() == WL_CONNECTED) {
-      connected = true;
-
-      if (wm.getConfigPortalActive()) {
-        wm.stopConfigPortal();
-      }
-
-      INFO_F("[wifi] Connected. IP address: %s, RSSI: %d\n", WiFi.localIP().toString().c_str(), WiFi.RSSI());
-    }
-
-    if (WiFi.status() == WL_CONNECTED && !wm.getWebPortalActive() && !wm.getConfigPortalActive()) {
-      wm.startWebPortal();
-    }
-
-    wm.process();
-  }
-
-  void static saveParamsCallback() {
-    strcpy(settings.hostname, wmHostname->getValue());
-    strcpy(settings.mqtt.server, wmMqttServer->getValue());
-    settings.mqtt.port = wmMqttPort->getValue();
-    strcpy(settings.mqtt.user, wmMqttUser->getValue());
-    strcpy(settings.mqtt.password, wmMqttPassword->getValue());
-    strcpy(settings.mqtt.prefix, wmMqttPrefix->getValue());
-    settings.mqtt.interval = wmMqttPublishInterval->getValue();
-    settings.opentherm.inPin = wmOtInPin->getValue();
-    settings.opentherm.outPin = wmOtOutPin->getValue();
-    settings.opentherm.memberIdCode = wmOtMemberIdCode->getValue();
-    settings.opentherm.dhwPresent = wmOtDHWPresent->getCheckboxValue();
-    settings.sensors.outdoor.pin = wmOutdoorSensorPin->getValue();
-    settings.sensors.indoor.pin = wmIndoorSensorPin->getValue();
-
-    INFO_F(
-      "New settings:\r\n"
-      "  Hostname: %s\r\n"
-      "  Mqtt server: %s:%d\r\n"
-      "  Mqtt user: %s\r\n"
-      "  Mqtt pass: %s\r\n"
-      "  Mqtt prefix: %s\r\n"
-      "  Mqtt publish interval: %d\r\n"
-      "  OT in pin: %d\r\n"
-      "  OT out pin: %d\r\n"
-      "  OT member id code: %d\r\n"
-      "  OT DHW present: %d\r\n"
-      "  Outdoor sensor pin: %d\r\n"
-      "  Indoor sensor pin: %d\r\n",
-      settings.hostname,
-      settings.mqtt.server,
-      settings.mqtt.port,
-      settings.mqtt.user,
-      settings.mqtt.password,
-      settings.mqtt.prefix,
-      settings.mqtt.interval,
-      settings.opentherm.inPin,
-      settings.opentherm.outPin,
-      settings.opentherm.memberIdCode,
-      settings.opentherm.dhwPresent,
-      settings.sensors.outdoor.pin,
-      settings.sensors.indoor.pin
-    );
-    eeSettings.updateNow();
-    INFO(F("Settings saved"));
-  }
-
-  bool connected = false;
-};

src/defines.h

@@ -1,46 +1,140 @@
-#define OT_GATEWAY_VERSION          "1.3.1"
-#define AP_SSID                     "OpenTherm Gateway"
-#define AP_PASSWORD                 "otgateway123456"
-#define USE_TELNET
+#define PROJECT_NAME                    "OpenTherm Gateway"
+#define PROJECT_VERSION                 "1.4.0-rc.24"
+#define PROJECT_REPO                    "https://github.com/Laxilef/OTGateway"
 
-#define EMERGENCY_TIME_TRESHOLD     120000
-#define MQTT_RECONNECT_INTERVAL     5000
-#define MQTT_KEEPALIVE              30
+#define MQTT_RECONNECT_INTERVAL         15000
 
-#define OPENTHERM_OFFLINE_TRESHOLD  10
+#define EXT_SENSORS_INTERVAL            5000
+#define EXT_SENSORS_FILTER_K            0.15
 
-#define EXT_SENSORS_INTERVAL        5000
-#define EXT_SENSORS_FILTER_K        0.15
-#define DS_CHECK_CRC                true
-#define DS_CRC_USE_TABLE            true
+#define CONFIG_URL                      "http://%s/"
+#define SETTINGS_VALID_VALUE            "stvalid" // only 8 chars!
+#define GPIO_IS_NOT_CONFIGURED          0xff
 
-#define LED_STATUS_PIN              13
-#define LED_OT_RX_PIN               15
+#define DEFAULT_HEATING_TARGET_TEMP     40
+#define DEFAULT_HEATING_MIN_TEMP        20
+#define DEFAULT_HEATING_MAX_TEMP        90
 
-#define CONFIG_URL                  "http://%s/"
-#define SETTINGS_VALID_VALUE        "stvalid" // only 8 chars!
+#define DEFAULT_DHW_TARGET_TEMP         40
+#define DEFAULT_DHW_MIN_TEMP            30
+#define DEFAULT_DHW_MAX_TEMP            60
 
+#define THERMOSTAT_INDOOR_DEFAULT_TEMP  20
+#define THERMOSTAT_INDOOR_MIN_TEMP      5
+#define THERMOSTAT_INDOOR_MAX_TEMP      30
 
-#ifdef USE_TELNET
-  #define INFO_STREAM TelnetStream
-  #define WARN_STREAM TelnetStream
-  #define ERROR_STREAM TelnetStream
-  #define DEBUG_STREAM  if (settings.debug) TelnetStream
-  #define WM_DEBUG_PORT TelnetStream
-#else
-  #define INFO_STREAM Serial
-  #define WARN_STREAM Serial
-  #define ERROR_STREAM Serial
-  #define DEBUG_STREAM  if (settings.debug) Serial
-  #define WM_DEBUG_PORT Serial
+#ifndef USE_SERIAL
+  #define USE_SERIAL true
 #endif
 
-#define INFO(...) INFO_STREAM.print("\r[INFO] "); INFO_STREAM.println(__VA_ARGS__);
-#define INFO_F(...) INFO_STREAM.print("\r[INFO] "); INFO_STREAM.printf(__VA_ARGS__);
-#define WARN(...) WARN_STREAM.print("\r[WARN] "); WARN_STREAM.println(__VA_ARGS__);
-#define WARN_F(...) WARN_STREAM.print("\r[WARN] "); WARN_STREAM.printf(__VA_ARGS__);
-#define ERROR(...) ERROR_STREAM.print("\r[ERROR] "); ERROR_STREAM.println(__VA_ARGS__);
-#define DEBUG(...) DEBUG_STREAM.print("\r[DEBUG] "); DEBUG_STREAM.println(__VA_ARGS__);
-#define DEBUG_F(...) DEBUG_STREAM.print("\r[DEBUG] "); DEBUG_STREAM.printf(__VA_ARGS__);
+#ifndef USE_TELNET
+  #define USE_TELNET true
+#endif
 
-char buffer[120];
+#ifndef USE_BLE
+  #define USE_BLE false
+#endif
+
+#ifndef DEFAULT_HOSTNAME
+  #define DEFAULT_HOSTNAME "opentherm"
+#endif
+
+#ifndef DEFAULT_AP_SSID
+  #define DEFAULT_AP_SSID "OpenTherm Gateway"
+#endif
+
+#ifndef DEFAULT_AP_PASSWORD
+  #define DEFAULT_AP_PASSWORD "otgateway123456"
+#endif
+
+#ifndef DEFAULT_STA_SSID
+  #define DEFAULT_STA_SSID ""
+#endif
+
+#ifndef DEFAULT_STA_PASSWORD
+  #define DEFAULT_STA_PASSWORD ""
+#endif
+
+#ifndef DEBUG_BY_DEFAULT
+  #define DEBUG_BY_DEFAULT false
+#endif
+
+#ifndef DEFAULT_STATUS_LED_GPIO
+  #define DEFAULT_STATUS_LED_GPIO GPIO_IS_NOT_CONFIGURED
+#endif
+
+#ifndef DEFAULT_PORTAL_LOGIN
+  #define DEFAULT_PORTAL_LOGIN ""
+#endif
+
+#ifndef DEFAULT_PORTAL_PASSWORD
+  #define DEFAULT_PORTAL_PASSWORD ""
+#endif
+
+#ifndef DEFAULT_MQTT_SERVER
+  #define DEFAULT_MQTT_SERVER ""
+#endif
+
+#ifndef DEFAULT_MQTT_PORT
+  #define DEFAULT_MQTT_PORT 1883
+#endif
+
+#ifndef DEFAULT_MQTT_USER
+  #define DEFAULT_MQTT_USER ""
+#endif
+
+#ifndef DEFAULT_MQTT_PASSWORD
+  #define DEFAULT_MQTT_PASSWORD ""
+#endif
+
+#ifndef DEFAULT_MQTT_PREFIX
+  #define DEFAULT_MQTT_PREFIX "opentherm"
+#endif
+
+#ifndef DEFAULT_OT_IN_GPIO
+  #define DEFAULT_OT_IN_GPIO GPIO_IS_NOT_CONFIGURED
+#endif
+
+#ifndef DEFAULT_OT_OUT_GPIO
+  #define DEFAULT_OT_OUT_GPIO GPIO_IS_NOT_CONFIGURED
+#endif
+
+#ifndef DEFAULT_OT_RX_LED_GPIO
+  #define DEFAULT_OT_RX_LED_GPIO GPIO_IS_NOT_CONFIGURED
+#endif
+
+#ifndef DEFAULT_SENSOR_OUTDOOR_GPIO
+  #define DEFAULT_SENSOR_OUTDOOR_GPIO GPIO_IS_NOT_CONFIGURED
+#endif
+
+#ifndef DEFAULT_SENSOR_INDOOR_GPIO
+  #define DEFAULT_SENSOR_INDOOR_GPIO GPIO_IS_NOT_CONFIGURED
+#endif
+
+#ifndef DEFAULT_EXT_PUMP_GPIO
+  #define DEFAULT_EXT_PUMP_GPIO GPIO_IS_NOT_CONFIGURED
+#endif
+
+#ifndef PROGMEM
+  #define PROGMEM 
+#endif
+
+#ifndef GPIO_IS_VALID_GPIO
+  #define GPIO_IS_VALID_GPIO(gpioNum) (gpioNum >= 0 && gpioNum <= 16)
+#endif
+
+#define GPIO_IS_VALID(gpioNum) (gpioNum != GPIO_IS_NOT_CONFIGURED && GPIO_IS_VALID_GPIO(gpioNum))
+
+enum class SensorType : byte {
+  BOILER,
+  MANUAL,
+  DS18B20,
+  BLUETOOTH
+};
+
+enum class UnitSystem : byte {
+  METRIC,
+  IMPERIAL
+};
+
+char buffer[255];

src/main.cpp

@@ -1,66 +1,156 @@
 #include <Arduino.h>
 #include "defines.h"
+#include "strings.h"
 #include <ArduinoJson.h>
-#include <TelnetStream.h>
-#include <EEManager.h>
-#include <Scheduler.h>
+#include <FileData.h>
+#include <LittleFS.h>
+#include "ESPTelnetStream.h"
+#include <TinyLogger.h>
+#include <NetworkManager.h>
+#include "Settings.h"
+#include <utils.h>
+
+#if defined(ARDUINO_ARCH_ESP32)
+  #include <ESP32Scheduler.h>
+#elif defined(ARDUINO_ARCH_ESP8266)
+  #include <Scheduler.h>
+#else
+  #error Wrong board. Supported boards: esp8266, esp32
+#endif
+
 #include <Task.h>
 #include <LeanTask.h>
-#include "Settings.h"
-
-EEManager eeSettings(settings, 30000);
-
-#include "WifiManagerTask.h"
 #include "MqttTask.h"
 #include "OpenThermTask.h"
 #include "SensorsTask.h"
 #include "RegulatorTask.h"
+#include "PortalTask.h"
 #include "MainTask.h"
 
+// Vars
+FileData fsNetworkSettings(&LittleFS, "/network.conf", 'n', &networkSettings, sizeof(networkSettings), 1000);
+FileData fsSettings(&LittleFS, "/settings.conf", 's', &settings, sizeof(settings), 60000);
+ESPTelnetStream* telnetStream = nullptr;
+Network::Manager* network = nullptr;
+
 // Tasks
-WifiManagerTask* tWm;
 MqttTask* tMqtt;
 OpenThermTask* tOt;
 SensorsTask* tSensors;
 RegulatorTask* tRegulator;
+PortalTask* tPortal;
 MainTask* tMain;
 
 
 void setup() {
-#ifdef USE_TELNET
-  TelnetStream.begin();
-  delay(1000);
-#else
+  LittleFS.begin();
+
+  Log.setLevel(TinyLogger::Level::VERBOSE);
+  Log.setServiceTemplate("\033[1m[%s]\033[22m");
+  Log.setLevelTemplate("\033[1m[%s]\033[22m");
+  Log.setMsgPrefix("\033[m ");
+  Log.setDateTemplate("\033[1m[%H:%M:%S]\033[22m");
+  Log.setDateCallback([] {
+    unsigned int time = millis() / 1000;
+    int sec = time % 60;
+    int min = time % 3600 / 60;
+    int hour = time / 3600;
+
+    return tm{sec, min, hour};
+  });
+  
   Serial.begin(115200);
-  Serial.println("\n\n");
-#endif
+  Log.addStream(&Serial);
+  Log.print("\n\n\r");
 
-  EEPROM.begin(eeSettings.blockSize());
-  uint8_t eeSettingsResult = eeSettings.begin(0, 's');
-  if (eeSettingsResult == 0) {
-    INFO("Settings loaded");
-
-    if ( strcmp(SETTINGS_VALID_VALUE, settings.validationValue) != 0 ) {
-      INFO("Settings not valid, reset and restart...");
-      eeSettings.reset();
-      delay(1000);
-      ESP.restart();
-    }
-
-  } else if (eeSettingsResult == 1) {
-    INFO("Settings NOT loaded, first start");
-
-  } else if (eeSettingsResult == 2) {
-    INFO("Settings NOT loaded (error)");
+  // network settings
+  switch (fsNetworkSettings.read()) {
+    case FD_FS_ERR:
+      Log.swarningln(FPSTR(L_NETWORK_SETTINGS), F("Filesystem error, load default"));
+      break;
+    case FD_FILE_ERR:
+      Log.swarningln(FPSTR(L_NETWORK_SETTINGS), F("Bad data, load default"));
+      break;
+    case FD_WRITE:
+      Log.sinfoln(FPSTR(L_NETWORK_SETTINGS), F("Not found, load default"));
+      break;
+    case FD_ADD:
+    case FD_READ:
+      Log.sinfoln(FPSTR(L_NETWORK_SETTINGS), F("Loaded"));
+      break;
+    default:
+      break;
   }
 
-  tWm = new WifiManagerTask(true);
-  Scheduler.start(tWm);
+  // settings
+  switch (fsSettings.read()) {
+    case FD_FS_ERR:
+      Log.swarningln(FPSTR(L_SETTINGS), F("Filesystem error, load default"));
+      break;
+    case FD_FILE_ERR:
+      Log.swarningln(FPSTR(L_SETTINGS), F("Bad data, load default"));
+      break;
+    case FD_WRITE:
+      Log.sinfoln(FPSTR(L_SETTINGS), F("Not found, load default"));
+      break;
+    case FD_ADD:
+    case FD_READ:
+      Log.sinfoln(FPSTR(L_SETTINGS), F("Loaded"));
 
-  tMqtt = new MqttTask(false);
+      if (strcmp(SETTINGS_VALID_VALUE, settings.validationValue) != 0) {
+        Log.swarningln(FPSTR(L_SETTINGS), F("Not valid, set default and restart..."));
+        fsSettings.reset();
+        ::delay(5000);
+        ESP.restart();
+      }
+      break;
+    default:
+      break;
+  }
+
+  // logs
+  if (!settings.system.serial.enable) {
+    Serial.end();
+    Log.clearStreams();
+
+  } else if (settings.system.serial.baudrate != 115200) {
+    Serial.end();
+    Log.clearStreams();
+
+    Serial.begin(settings.system.serial.baudrate);
+    Log.addStream(&Serial);
+  }
+
+  if (settings.system.telnet.enable) {
+    telnetStream = new ESPTelnetStream;
+    telnetStream->setKeepAliveInterval(500);
+    Log.addStream(telnetStream);
+  }
+
+  Log.setLevel(settings.system.debug ? TinyLogger::Level::VERBOSE : TinyLogger::Level::INFO);
+
+  // network
+  network = (new Network::Manager)
+    ->setHostname(networkSettings.hostname)
+    ->setStaCredentials(
+    #ifdef WOKWI
+      "Wokwi-GUEST", nullptr, 6
+    #else
+      strlen(networkSettings.sta.ssid) ? networkSettings.sta.ssid : nullptr,
+      strlen(networkSettings.sta.password) ? networkSettings.sta.password : nullptr,
+      networkSettings.sta.channel
+    #endif
+    )->setApCredentials(
+      strlen(networkSettings.ap.ssid) ? networkSettings.ap.ssid : nullptr,
+      strlen(networkSettings.ap.password) ? networkSettings.ap.password : nullptr,
+      networkSettings.ap.channel
+    );
+
+  // tasks
+  tMqtt = new MqttTask(false, 500);
   Scheduler.start(tMqtt);
 
-  tOt = new OpenThermTask(false);
+  tOt = new OpenThermTask(true, 750);
   Scheduler.start(tOt);
 
   tSensors = new SensorsTask(true, EXT_SENSORS_INTERVAL);
@@ -69,10 +159,17 @@ void setup() {
   tRegulator = new RegulatorTask(true, 10000);
   Scheduler.start(tRegulator);
 
-  tMain = new MainTask(true);
+  tPortal = new PortalTask(true, 0);
+  Scheduler.start(tPortal);
+
+  tMain = new MainTask(true, 100);
   Scheduler.start(tMain);
 
   Scheduler.begin();
 }
 
-void loop() {}
+void loop() {
+#if defined(ARDUINO_ARCH_ESP32)
+  vTaskDelete(NULL);
+#endif
+}

src/strings.h

@@ -0,0 +1,24 @@
+#pragma once
+#ifndef PROGMEM
+  #define PROGMEM 
+#endif
+
+const char L_SETTINGS[]             PROGMEM = "SETTINGS";
+const char L_NETWORK[]              PROGMEM = "NETWORK";
+const char L_NETWORK_SETTINGS[]     PROGMEM = "NETWORK.SETTINGS";
+const char L_PORTAL_WEBSERVER[]     PROGMEM = "PORTAL.WEBSERVER";
+const char L_PORTAL_DNSSERVER[]     PROGMEM = "PORTAL.DNSSERVER";
+const char L_PORTAL_CAPTIVE[]       PROGMEM = "PORTAL.CAPTIVE";
+const char L_PORTAL_OTA[]           PROGMEM = "PORTAL.OTA";
+const char L_MAIN[]                 PROGMEM = "MAIN";
+const char L_MQTT[]                 PROGMEM = "MQTT";
+const char L_MQTT_MSG[]             PROGMEM = "MQTT.MSG";
+const char L_OT[]                   PROGMEM = "OT";
+const char L_OT_DHW[]               PROGMEM = "OT.DHW";
+const char L_OT_HEATING[]           PROGMEM = "OT.HEATING";
+const char L_SENSORS_OUTDOOR[]      PROGMEM = "SENSORS.OUTDOOR";
+const char L_SENSORS_INDOOR[]       PROGMEM = "SENSORS.INDOOR";
+const char L_SENSORS_BLE[]          PROGMEM = "SENSORS.BLE";
+const char L_REGULATOR[]            PROGMEM = "REGULATOR";
+const char L_REGULATOR_PID[]        PROGMEM = "REGULATOR.PID";
+const char L_REGULATOR_EQUITHERM[]  PROGMEM = "REGULATOR.EQUITHERM";

src_data/dashboard.html

@@ -0,0 +1,415 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>Dashboard - OpenTherm Gateway</title>
+    <link rel="stylesheet" href="/static/pico.min.css">
+    <link rel="stylesheet" href="/static/app.css"/>
+  </head>
+
+  <body>
+    <header class="container">
+      <nav>
+        <ul>
+          <li><a href="/"><div class="logo">OpenTherm Gateway</div></a></li>
+        </ul>
+        <ul>
+          <li><a href="https://github.com/Laxilef/OTGateway/wiki" role="button" class="secondary" target="_blank">Help</a></li>
+        </ul>
+      </nav>
+    </header>
+
+    <main class="container">
+      <article>
+        <hgroup>
+          <h2>Dashboard</h2>
+          <p></p>
+        </hgroup>
+
+        <div id="dashboard-busy" aria-busy="true"></div>
+        <div id="dashboard-container" class="hidden">
+          <details open>
+            <summary><b>Control</b></summary>
+            <div class="grid">
+              <div class="thermostat" id="thermostat-heating">
+                <div class="thermostat-header">Heating</div>
+                <div class="thermostat-temp">
+                  <div class="thermostat-temp-target"><span id="thermostat-heating-target"></span> <span class="temp-unit"></span></div>
+                  <div class="thermostat-temp-current">Current: <span id="thermostat-heating-current"></span> <span class="temp-unit"></span></div>
+                </div>
+                <div class="thermostat-minus"><button id="thermostat-heating-minus" class="outline"><b>-</b></button></div>
+                <div class="thermostat-plus"><button id="thermostat-heating-plus" class="outline"><b>+</b></button></div>
+                <div class="thermostat-control">
+                  <input type="checkbox" role="switch" id="thermostat-heating-enabled" value="true">
+                  <label htmlFor="thermostat-heating-enabled">Enable</label>
+
+                  <input type="checkbox" role="switch" id="thermostat-heating-turbo" value="true">
+                  <label htmlFor="thermostat-heating-turbo">Turbo mode</label>
+                </div>
+              </div>
+
+              <div class="thermostat" id="thermostat-dhw">
+                <div class="thermostat-header">DHW</div>
+                <div class="thermostat-temp">
+                  <div class="thermostat-temp-target"><span id="thermostat-dhw-target"></span> <span class="temp-unit"></span></div>
+                  <div class="thermostat-temp-current">Current: <span id="thermostat-dhw-current"></span> <span class="temp-unit"></span></div>
+                </div>
+                <div class="thermostat-minus"><button class="outline" id="thermostat-dhw-minus"><b>-</b></button></div>
+                <div class="thermostat-plus"><button class="outline" id="thermostat-dhw-plus"><b>+</b></button></div>
+                <div class="thermostat-control">
+                  <input type="checkbox" role="switch" id="thermostat-dhw-enabled" value="true">
+                  <label htmlFor="thermostat-dhw-enabled">Enable</label>
+                </div>
+              </div>
+            </div>
+          </details>
+
+          <hr />
+
+          <details>
+            <summary><b>States and sensors</b></summary>
+            <table>
+              <tbody>
+                <tr>
+                  <th scope="row">OpenTherm connected:</th>
+                  <td><input type="radio" id="ot-connected" aria-invalid="false" checked disabled /></td>
+                </tr>
+                <tr>
+                  <th scope="row">MQTT connected:</th>
+                  <td><input type="radio" id="mqtt-connected" aria-invalid="false" checked disabled /></td>
+                </tr>
+                <tr>
+                  <th scope="row">Emergency:</th>
+                  <td><input type="radio" id="ot-emergency" aria-invalid="false" checked disabled /></td>
+                </tr>
+                <tr>
+                  <th scope="row">Heating:</th>
+                  <td><input type="radio" id="ot-heating" aria-invalid="false" checked disabled /></td>
+                </tr>
+                <tr>
+                  <th scope="row">DHW:</th>
+                  <td><input type="radio" id="ot-dhw" aria-invalid="false" checked disabled /></td>
+                </tr>
+                <tr>
+                  <th scope="row">Flame:</th>
+                  <td><input type="radio" id="ot-flame" aria-invalid="false" checked disabled /></td>
+                </tr>
+                <tr>
+                  <th scope="row">Fault:</th>
+                  <td><input type="radio" id="ot-fault" aria-invalid="false" checked disabled /></td>
+                </tr>
+                <tr>
+                  <th scope="row">Diagnostic:</th>
+                  <td><input type="radio" id="ot-diagnostic" aria-invalid="false" checked disabled /></td>
+                </tr>
+                <tr>
+                  <th scope="row">External pump:</th>
+                  <td><input type="radio" id="ot-external-pump" aria-invalid="false" checked disabled /></td>
+                </tr>
+                <tr>
+                  <th scope="row">Modulation:</th>
+                  <td><b id="ot-modulation"></b> %</td>
+                </tr>
+                <tr>
+                  <th scope="row">Pressure:</th>
+                  <td><b id="ot-pressure"></b> <span class="pressure-unit"></span></td>
+                </tr>
+                <tr>
+                  <th scope="row">DHW flow rate:</th>
+                  <td><b id="ot-dhw-flow-rate"></b> <span class="volume-unit"></span>/min</td>
+                </tr>
+                <tr>
+                  <th scope="row">Fault code:</th>
+                  <td><b id="ot-fault-code"></b></td>
+                </tr>
+                <tr>
+                  <th scope="row">Indoor temp:</th>
+                  <td><b id="indoor-temp"></b> <span class="temp-unit"></span></td>
+                </tr>
+                <tr>
+                  <th scope="row">Outdoor temp:</th>
+                  <td><b id="outdoor-temp"></b> <span class="temp-unit"></span></td>
+                </tr>
+                <tr>
+                  <th scope="row">Heating temp:</th>
+                  <td><b id="heating-temp"></b> <span class="temp-unit"></span></td>
+                </tr>
+                <tr>
+                  <th scope="row">Heating setpoint temp:</th>
+                  <td><b id="heating-setpoint-temp"></b> <span class="temp-unit"></span></td>
+                </tr>
+                <tr>
+                  <th scope="row">Heating return temp:</th>
+                  <td><b id="heating-return-temp"></b> <span class="temp-unit"></span></td>
+                </tr>
+                <tr>
+                  <th scope="row">DHW temp:</th>
+                  <td><b id="dhw-temp"></b> <span class="temp-unit"></span></td>
+                </tr>
+                <tr>
+                  <th scope="row">Exhaust temp:</th>
+                  <td><b id="exhaust-temp"></b> <span class="temp-unit"></span></td>
+                </tr>
+              </tbody>
+            </table>
+          </details>
+
+          <hr />
+
+          <details>
+            <summary><b>OpenTherm diagnostic</b></summary>
+            <pre><b>Vendor:</b>          <span id="slave-vendor"></span>
+<b>Member ID:</b>       <span id="slave-member-id"></span>
+<b>Flags:</b>           <span id="slave-flags"></span>
+<b>Type:</b>            <span id="slave-type"></span>
+<b>Version:</b>         <span id="slave-version"></span>
+<b>OT version:</b>      <span id="slave-ot-version"></span>
+<b>Heating limits:</b>  <span id="heating-min-temp"></span>...<span id="heating-max-temp"></span> <span class="temp-unit"></span>
+<b>DHW limits:</b>      <span id="dhw-min-temp"></span>...<span id="dhw-max-temp"></span> <span class="temp-unit"></span></pre>
+          </details>
+        </div>
+      </article>
+    </main>
+
+    <footer class="container">
+      <small>
+        <b>Made by Laxilef</b>
+        • <a href="https://github.com/Laxilef/OTGateway/blob/master/LICENSE" target="_blank" class="secondary">License</a>
+        • <a href="https://github.com/Laxilef/OTGateway/blob/master/" target="_blank" class="secondary">Source code</a>
+        • <a href="https://github.com/Laxilef/OTGateway/wiki" target="_blank" class="secondary">Help</a>
+        • <a href="https://github.com/Laxilef/OTGateway/issues" target="_blank" class="secondary">Issue & questions</a>
+        • <a href="https://github.com/Laxilef/OTGateway/releases" target="_blank" class="secondary">Releases</a>
+      </small>
+    </footer>
+
+    <script src="/static/app.js"></script>
+    <script>
+      let modifiedTime = null;
+      let noRegulators;
+      let prevSettings;
+      let newSettings = {
+        heating: {
+          enable: false,
+          turbo: false,
+          target: 0
+        },
+        dhw: {
+          enable: false,
+          target: 0
+        }
+      };
+
+      window.onload = async function () {
+        document.querySelector('#thermostat-heating-minus').addEventListener('click', (event) => {
+          if (!prevSettings) {
+            return;
+          }
+          
+          newSettings.heating.target -= 0.5;
+          modifiedTime = Date.now();
+
+          let minTemp;
+          if (noRegulators) {
+            minTemp = prevSettings.heating.minTemp;
+          } else {
+            minTemp = prevSettings.system.unitSystem == 0 ? 5 : 41;
+          }
+
+          if (prevSettings && newSettings.heating.target < minTemp) {
+            newSettings.heating.target = minTemp;
+          }
+
+          setValue('#thermostat-heating-target', newSettings.heating.target);
+        });
+
+        document.querySelector('#thermostat-heating-plus').addEventListener('click', (event) => {
+          if (!prevSettings) {
+            return;
+          } 
+          
+          newSettings.heating.target += 0.5;
+          modifiedTime = Date.now();
+
+          let maxTemp;
+          if (noRegulators) {
+            maxTemp = prevSettings.heating.maxTemp;
+          } else {
+            maxTemp = prevSettings.system.unitSystem == 0 ? 30 : 86;
+          }
+
+          if (prevSettings && newSettings.heating.target > maxTemp) {
+            newSettings.heating.target = maxTemp;
+          }
+
+          setValue('#thermostat-heating-target', newSettings.heating.target);
+        });
+
+        document.querySelector('#thermostat-dhw-minus').addEventListener('click', (event) => {
+          if (!prevSettings) {
+            return;
+          }
+          
+          newSettings.dhw.target -= 1.0;
+          modifiedTime = Date.now();
+
+          if (newSettings.dhw.target < prevSettings.dhw.minTemp) {
+            newSettings.dhw.target = prevSettings.dhw.minTemp;
+          }
+
+          setValue('#thermostat-dhw-target', newSettings.dhw.target);
+        });
+
+        document.querySelector('#thermostat-dhw-plus').addEventListener('click', (event) => {
+          if (!prevSettings) {
+            return;
+          }
+          
+          newSettings.dhw.target += 1.0;
+          modifiedTime = Date.now();
+
+          if (newSettings.dhw.target > prevSettings.dhw.maxTemp) {
+            newSettings.dhw.target = prevSettings.dhw.maxTemp;
+          }
+
+          setValue('#thermostat-dhw-target', newSettings.dhw.target);
+        });
+
+        document.querySelector('#thermostat-heating-enabled').addEventListener('change', (event) => {
+          modifiedTime = Date.now();
+          newSettings.heating.enable = event.currentTarget.checked;
+        });
+
+        document.querySelector('#thermostat-heating-turbo').addEventListener('change', (event) => {
+          modifiedTime = Date.now();
+          newSettings.heating.turbo = event.currentTarget.checked;
+        });
+
+        document.querySelector('#thermostat-dhw-enabled').addEventListener('change', (event) => {
+          modifiedTime = Date.now();
+          newSettings.dhw.enable = event.currentTarget.checked;
+        });
+
+        setTimeout(async function onLoadPage() {
+          if (modifiedTime) {
+            if ((Date.now() - modifiedTime) < 5000) {
+              setTimeout(onLoadPage, 1000);
+              return;
+            }
+
+            modifiedTime = null;
+          }
+
+          // settings
+          try {
+            let modified = prevSettings && (
+              (prevSettings.heating.enable != newSettings.heating.enable)
+              || (prevSettings.heating.turbo != newSettings.heating.turbo)
+              || (prevSettings.heating.target != newSettings.heating.target)
+              || (prevSettings.opentherm.dhwPresent && prevSettings.dhw.enable != newSettings.dhw.enable)
+              || (prevSettings.opentherm.dhwPresent && prevSettings.dhw.target != newSettings.dhw.target)
+            );
+
+            if (modified) {
+              console.log(newSettings);
+            }
+
+            let parameters = {cache: 'no-cache'};
+            if (modified) {
+              parameters.method = "POST";
+              parameters.body = JSON.stringify(newSettings);
+            }
+
+            const response = await fetch('/api/settings', parameters);
+            if (!response.ok) {
+              throw new Error('Response not valid');
+            }
+
+            const result = await response.json();
+            noRegulators = !result.opentherm.nativeHeatingControl && !result.equitherm.enable && !result.pid.enable;
+            prevSettings = result;
+            newSettings.heating.enable = result.heating.enable;
+            newSettings.heating.turbo = result.heating.turbo;
+            newSettings.heating.target = result.heating.target;
+            newSettings.dhw.enable = result.dhw.enable;
+            newSettings.dhw.target = result.dhw.target;
+
+            if (result.opentherm.dhwPresent) {
+              show('#thermostat-dhw');
+            } else {
+              hide('#thermostat-dhw');
+            }
+
+            setCheckboxValue('#thermostat-heating-enabled', result.heating.enable);
+            setCheckboxValue('#thermostat-heating-turbo', result.heating.turbo);
+            setValue('#thermostat-heating-target', result.heating.target);
+
+            setCheckboxValue('#thermostat-dhw-enabled', result.dhw.enable);
+            setValue('#thermostat-dhw-target', result.dhw.target);
+
+            setValue('.temp-unit', temperatureUnit(result.system.unitSystem));
+            setValue('.pressure-unit', pressureUnit(result.system.unitSystem));
+            setValue('.volume-unit', volumeUnit(result.system.unitSystem));
+
+          } catch (error) {
+            console.log(error);
+          }
+
+          // vars
+          try {
+            const response = await fetch('/api/vars', { cache: 'no-cache' });
+            if (!response.ok) {
+              throw new Error('Response not valid');
+            }
+
+            const result = await response.json();
+            setValue('#thermostat-heating-current', noRegulators ? result.temperatures.heating : result.temperatures.indoor);
+            setValue('#thermostat-dhw-current', result.temperatures.dhw);
+
+            setState('#ot-connected', result.states.otStatus);
+            setState('#ot-emergency', result.states.emergency);
+            setState('#ot-heating', result.states.heating);
+            setState('#ot-dhw', result.states.dhw);
+            setState('#ot-flame', result.states.flame);
+            setState('#ot-fault', result.states.fault);
+            setState('#ot-diagnostic', result.states.diagnostic);
+            setState('#ot-external-pump', result.states.externalPump);
+            setState('#mqtt-connected', result.states.mqtt);
+
+            setValue('#ot-modulation', result.sensors.modulation);
+            setValue('#ot-pressure', result.sensors.pressure);
+            setValue('#ot-dhw-flow-rate', result.sensors.dhwFlowRate);
+            setValue('#ot-fault-code', result.sensors.faultCode ? ("E" + result.sensors.faultCode) : "-");
+
+            setValue('#indoor-temp', result.temperatures.indoor);
+            setValue('#outdoor-temp', result.temperatures.outdoor);
+            setValue('#heating-temp', result.temperatures.heating);
+            setValue('#heating-return-temp', result.temperatures.heatingReturn);
+            setValue('#dhw-temp', result.temperatures.dhw);
+            setValue('#exhaust-temp', result.temperatures.exhaust);
+
+            setValue('#heating-min-temp', result.parameters.heatingMinTemp);
+            setValue('#heating-max-temp', result.parameters.heatingMaxTemp);
+            setValue('#heating-setpoint-temp', result.parameters.heatingSetpoint);
+            setValue('#dhw-min-temp', result.parameters.dhwMinTemp);
+            setValue('#dhw-max-temp', result.parameters.dhwMaxTemp);
+
+            setValue('#slave-member-id', result.parameters.slaveMemberId);
+            setValue('#slave-vendor', memberIdToVendor(result.parameters.slaveMemberId));
+
+            setValue('#slave-flags', result.parameters.slaveFlags);
+            setValue('#slave-type', result.parameters.slaveType);
+            setValue('#slave-version', result.parameters.slaveVersion);
+            setValue('#slave-ot-version', result.parameters.slaveOtVersion);
+            setBusy('#dashboard-busy', '#dashboard-container', false);
+
+          } catch (error) {
+            console.log(error);
+          }
+
+          setTimeout(onLoadPage, 10000);
+        }, 1000);
+      };
+    </script>
+  </body>
+</html>

src_data/index.html

@@ -0,0 +1,178 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>OpenTherm Gateway</title>
+    <link rel="stylesheet" href="/static/pico.min.css">
+    <link rel="stylesheet" href="/static/app.css"/>
+  </head>
+
+  <body>
+    <header class="container">
+      <nav>
+        <ul>
+          <li><a href="/"><div class="logo">OpenTherm Gateway</div></a></li>
+        </ul>
+        <ul>
+          <li><a href="https://github.com/Laxilef/OTGateway/wiki" role="button" class="secondary" target="_blank">Help</a></li>
+        </ul>
+      </nav>
+    </header>
+
+    <main class="container">
+      <article>
+        <div>
+          <hgroup>
+            <h2>Network</h2>
+            <p></p>
+          </hgroup>
+
+          <div id="main-busy" aria-busy="true"></div>
+          <table id="main-table" class="hidden">
+            <tbody>
+              <tr>
+                <th scope="row">Hostname:</th>
+                <td><b id="network-hostname"></b></td>
+              </tr>
+              <tr>
+                <th scope="row">MAC:</th>
+                <td><b id="network-mac"></b></td>
+              </tr>
+              <tr>
+                <th scope="row">Connected:</th>
+                <td><input type="radio" id="network-connected" aria-invalid="false" checked disabled /></td>
+              </tr>
+              <tr>
+                <th scope="row">SSID:</th>
+                <td><b id="network-ssid"></b></td>
+              </tr>
+              <tr>
+                <th scope="row">Signal:</th>
+                <td><b id="network-signal"></b> %</td>
+              </tr>
+              <tr>
+                <th scope="row">IP:</th>
+                <td><b id="network-ip"></b></td>
+              </tr>
+              <tr>
+                <th scope="row">Subnet:</th>
+                <td><b id="network-subnet"></b></td>
+              </tr>
+              <tr>
+                <th scope="row">Gateway:</th>
+                <td><b id="network-gateway"></b></td>
+              </tr>
+              <tr>
+                <th scope="row">DNS:</th>
+                <td><b id="network-dns"></b></td>
+              </tr>
+            </tbody>
+          </table>
+          <div class="grid">
+            <a href="/network.html" role="button">Network settings</a>
+          </div>
+        </div>
+      </article>
+
+      <article>
+        <div>
+          <hgroup>
+            <h2>System</h2>
+            <p></p>
+          </hgroup>
+
+          <div id="system-busy" aria-busy="true"></div>
+          <table id="system-table" class="hidden">
+            <tbody>
+              <tr>
+                <th scope="row">Version:</th>
+                <td><b id="version"></b></td>
+              </tr>
+              <tr>
+                <th scope="row">Build date:</th>
+                <td><b id="build-date"></b></td>
+              </tr>
+              <tr>
+                <th scope="row">Uptime:</th>
+                <td><b id="uptime-days"></b> days, <b id="uptime-hours"></b> hours, <b id="uptime-min"></b> min., <b id="uptime-sec"></b> sec.</td>
+              </tr>
+              <tr>
+                <th scope="row">Free memory:</th>
+                <td><b id="free-heap"></b> of <b id="total-heap"></b> bytes (min: <b id="min-free-heap"></b> bytes)<br />max free block: <b id="max-free-block-heap"></b> bytes (min: <b id="min-max-free-block-heap"></b> bytes)</td>
+              </tr>
+              <tr>
+                <th scope="row">Last reset reason:</th>
+                <td><b id="reset-reason"></b></td>
+              </tr>
+            </tbody>
+          </table>
+
+          <div class="grid">
+            <a href="/dashboard.html" role="button">Dashboard</a>
+            <a href="/settings.html" role="button">Settings</a>
+            <a href="/upgrade.html" role="button">Upgrade</a>
+            <a href="/restart.html" role="button" class="secondary restart">Restart</a>
+          </div>
+        </div>
+      </article>
+    </main>
+
+    <footer class="container">
+      <small>
+        <b>Made by Laxilef</b>
+        • <a href="https://github.com/Laxilef/OTGateway/blob/master/LICENSE" target="_blank" class="secondary">License</a>
+        • <a href="https://github.com/Laxilef/OTGateway/blob/master/" target="_blank" class="secondary">Source code</a>
+        • <a href="https://github.com/Laxilef/OTGateway/wiki" target="_blank" class="secondary">Help</a>
+        • <a href="https://github.com/Laxilef/OTGateway/issues" target="_blank" class="secondary">Issue & questions</a>
+        • <a href="https://github.com/Laxilef/OTGateway/releases" target="_blank" class="secondary">Releases</a>
+      </small>
+    </footer>
+
+    <script src="/static/app.js"></script>
+    <script>
+      window.onload = async function () {
+        setTimeout(async function onLoadPage() {
+          try {
+            const response = await fetch('/api/info', { cache: 'no-cache' });
+            if (!response.ok) {
+              throw new Error('Response not valid');
+            }
+
+            const result = await response.json();
+            setValue('#network-hostname', result.network.hostname);
+            setValue('#network-mac', result.network.mac);
+            setState('#network-connected', result.network.connected);
+            setValue('#network-ssid', result.network.ssid);
+            setValue('#network-signal', result.network.signalQuality);
+            setValue('#network-ip', result.network.ip);
+            setValue('#network-subnet', result.network.subnet);
+            setValue('#network-gateway', result.network.gateway);
+            setValue('#network-dns', result.network.dns);
+            setBusy('#main-busy', '#main-table', false);
+
+            setValue('#version', result.system.version);
+            setValue('#build-date', result.system.buildDate);
+            setValue('#uptime', result.system.uptime);
+            setValue('#uptime-days', Math.floor(result.system.uptime / 86400));
+            setValue('#uptime-hours', Math.floor(result.system.uptime % 86400 / 3600));
+            setValue('#uptime-min', Math.floor(result.system.uptime % 3600 / 60));
+            setValue('#uptime-sec', Math.floor(result.system.uptime % 60));
+            setValue('#total-heap', result.system.totalHeap);
+            setValue('#free-heap', result.system.freeHeap);
+            setValue('#min-free-heap', result.system.minFreeHeap);
+            setValue('#max-free-block-heap', result.system.maxFreeBlockHeap);
+            setValue('#min-max-free-block-heap', result.system.minMaxFreeBlockHeap);
+            setValue('#reset-reason', result.system.resetReason);
+            setBusy('#system-busy', '#system-table', false);
+
+          } catch (error) {
+            console.log(error);
+          }
+
+          setTimeout(onLoadPage, 10000);
+        }, 1000);
+      };
+    </script>
+  </body>
+</html>

src_data/network.html

@@ -0,0 +1,207 @@
+<!doctype html>
+<html lang="en">
+
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <title>Network - OpenTherm Gateway</title>
+  <link rel="stylesheet" href="/static/pico.min.css">
+  <link rel="stylesheet" href="/static/app.css" />
+</head>
+
+<body>
+  <header class="container">
+    <nav>
+      <ul>
+        <li><a href="/"><div class="logo">OpenTherm Gateway</div></a></li>
+      </ul>
+      <ul>
+        <li><a href="https://github.com/Laxilef/OTGateway/wiki" role="button" class="secondary" target="_blank">Help</a></li>
+      </ul>
+    </nav>
+  </header>
+
+  <main class="container">
+    <article>
+      <div>
+        <hgroup>
+          <h2>Network settings</h2>
+          <p></p>
+        </hgroup>
+
+        <div id="network-settings-busy" aria-busy="true"></div>
+        <form action="/api/network/settings" id="network-settings" class="hidden">
+          <label for="network-hostname">
+            Hostname
+            <input type="text" id="network-hostname" name="hostname" maxlength="24" pattern="[A-Za-z0-9]+[A-Za-z0-9\-]+[A-Za-z0-9]+" required>
+          </label>
+
+          <label for="network-use-dhcp">
+            <input type="checkbox" id="network-use-dhcp" name="useDhcp" value="true">
+            Use DHCP
+          </label>
+          <br />
+          <hr />
+
+          <label for="network-static-ip">
+            Static IP:
+            <input type="text" id="network-static-ip" name="staticConfig[ip]" value="true" maxlength="16" pattern="\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}" required>
+          </label>
+
+          <label for="network-static-gateway">
+            Static gateway:
+            <input type="text" id="network-static-gateway" name="staticConfig[gateway]" maxlength="16" pattern="\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}" required>
+          </label>
+
+          <label for="network-static-subnet">
+            Static subnet:
+            <input type="text" id="network-static-subnet" name="staticConfig[subnet]" maxlength="16" pattern="\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}" required>
+          </label>
+
+          <label for="network-static-dns">
+            Static DNS:
+            <input type="text" id="network-static-dns" name="staticConfig[dns]" maxlength="16" pattern="\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}" required>
+          </label>
+
+          <button type="submit">Save</button>
+        </form>
+      </div>
+    </article>
+
+    <article>
+      <div>
+        <hgroup>
+          <h3>Available networks</h3>
+          <p></p>
+        </hgroup>
+
+        <form action="/api/network/scan" id="network-scan">
+          <div style="max-height: 25rem;" class="overflow-auto">
+            <table id="networks" role="grid">
+              <thead>
+                <tr>
+                  <th scope="col">#</th>
+                  <th scope="col">SSID</th>
+                  <th scope="col">Signal</th>
+                </tr>
+              </thead>
+              <tbody></tbody>
+            </table>
+          </div>
+
+          <button type="submit">Refresh</button>
+        </form>
+
+        <hr />
+        <div>
+          <hgroup>
+            <h2>WiFi settings</h2>
+            <p></p>
+          </hgroup>
+
+          <div id="sta-settings-busy" aria-busy="true"></div>
+          <form action="/api/network/settings" id="sta-settings" class="hidden">
+            <label for="sta-ssid">
+              SSID:
+              <input type="text" id="sta-ssid" name="sta[ssid]" maxlength="32" required>
+            </label>
+
+            <label for="sta-password">
+              Password:
+              <input type="password" id="sta-password" name="sta[password]" maxlength="64" required>
+            </label>
+
+            <label for="sta-channel">
+              Channel:
+              <input type="number" inputmode="numeric" id="sta-channel" name="sta[channel]" min="0" max="12" step="1" required>
+              <small>set 0 for auto select</small>
+            </label>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </div>
+    </article>
+
+    <article>
+      <div>
+        <hgroup>
+          <h2>AP settings</h2>
+          <p></p>
+        </hgroup>
+
+        <div id="ap-settings-busy" aria-busy="true"></div>
+        <form action="/api/network/settings" id="ap-settings" class="hidden">
+          <label for="ap-ssid">
+            SSID:
+            <input type="text" id="ap-ssid" name="ap[ssid]" maxlength="32" required>
+          </label>
+
+          <label for="ap-password">
+            Password:
+            <input type="text" id="ap-password" name="ap[password]" maxlength="64" required>
+          </label>
+
+          <label for="ap-channel">
+            Channel:
+            <input type="number" inputmode="numeric" id="ap-channel" name="ap[channel]" min="1" max="12" step="1" required>
+          </label>
+
+          <button type="submit">Save</button>
+        </form>
+      </div>
+    </article>
+  </main>
+
+  <footer class="container">
+    <small>
+      <b>Made by Laxilef</b>
+      • <a href="https://github.com/Laxilef/OTGateway/blob/master/LICENSE" target="_blank" class="secondary">License</a>
+      • <a href="https://github.com/Laxilef/OTGateway/blob/master/" target="_blank" class="secondary">Source code</a>
+      • <a href="https://github.com/Laxilef/OTGateway/wiki" target="_blank" class="secondary">Help</a>
+      • <a href="https://github.com/Laxilef/OTGateway/issues" target="_blank" class="secondary">Issue & questions</a>
+      • <a href="https://github.com/Laxilef/OTGateway/releases" target="_blank" class="secondary">Releases</a>
+    </small>
+  </footer>
+
+  <script src="/static/app.js"></script>
+  <script>
+    window.onload = async function () {
+      try {
+        const response = await fetch('/api/network/settings', { cache: 'no-cache' });
+        if (!response.ok) {
+          throw new Error('Response not valid');
+        }
+
+        const result = await response.json();
+        setInputValue('#network-hostname', result.hostname);
+        setCheckboxValue('#network-use-dhcp', result.useDhcp);
+        setInputValue('#network-static-ip', result.staticConfig.ip);
+        setInputValue('#network-static-gateway', result.staticConfig.gateway);
+        setInputValue('#network-static-subnet', result.staticConfig.subnet);
+        setInputValue('#network-static-dns', result.staticConfig.dns);
+        setBusy('#network-settings-busy', '#network-settings', false);
+
+        setInputValue('#sta-ssid', result.sta.ssid);
+        setInputValue('#sta-password', result.sta.password);
+        setInputValue('#sta-channel', result.sta.channel);
+        setBusy('#sta-settings-busy', '#sta-settings', false);
+
+        setInputValue('#ap-ssid', result.ap.ssid);
+        setInputValue('#ap-password', result.ap.password);
+        setInputValue('#ap-channel', result.ap.channel);
+        setBusy('#ap-settings-busy', '#ap-settings', false);
+
+      } catch (error) {
+        console.log(error);
+      }
+
+      setupForm('#network-settings');
+      setupNetworkScanForm('#network-scan', '#networks');
+      setupForm('#sta-settings');
+      setupForm('#ap-settings');
+    };
+  </script>
+</body>
+
+</html>

src_data/settings.html

@@ -0,0 +1,816 @@
+<!doctype html>
+<html lang="en">
+
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <title>Settings - OpenTherm Gateway</title>
+  <link rel="stylesheet" href="/static/pico.min.css">
+  <link rel="stylesheet" href="/static/app.css" />
+</head>
+
+<body>
+  <header class="container">
+    <nav>
+      <ul>
+        <li><a href="/"><div class="logo">OpenTherm Gateway</div></a></li>
+      </ul>
+      <ul>
+        <li><a href="https://github.com/Laxilef/OTGateway/wiki" role="button" class="secondary" target="_blank">Help</a></li>
+      </ul>
+    </nav>
+  </header>
+
+  <main class="container">
+    <article>
+      <hgroup>
+        <h2>Settings</h2>
+        <p></p>
+      </hgroup>
+
+      <details>
+        <summary><b>Portal settings</b></summary>
+        <div>
+          <div id="portal-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="portal-settings" class="hidden">
+            <div class="grid">
+              <label for="portal-login">
+                Login
+                <input type="text" id="portal-login" name="portal[login]" maxlength="12" required>
+              </label>
+
+              <label for="portal-password">
+                Password
+                <input type="password" id="portal-password" name="portal[password]" maxlength="32" required>
+              </label>
+            </div>
+
+            <label for="portal-auth">
+              <input type="checkbox" id="portal-auth" name="portal[auth]" value="true">
+              Require authentication
+            </label>
+            <br />
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>System settings</b></summary>
+        <div>
+          <div id="system-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="system-settings" class="hidden">
+            <fieldset>
+              <legend>Unit system</legend>
+
+              <label>
+                <input type="radio" class="system-unit-system" name="system[unitSystem]" value="0" />
+                Metric (celsius, liters, bar)
+              </label>
+
+              <label>
+                <input type="radio" class="system-unit-system" name="system[unitSystem]" value="1" />
+                Imperial (fahrenheit, gallons, psi)
+              </label>
+            </fieldset>
+
+            <fieldset>
+              <label for="system-status-led-gpio">
+                Status LED GPIO
+                <input type="number" inputmode="numeric" id="system-status-led-gpio" name="system[statusLedGpio]" min="0" max="254" step="1">
+                <small>blank - not use</small>
+              </label>
+            </fieldset>
+
+            <fieldset>
+              <legend>Diagnostic</legend>
+
+              <label for="system-debug">
+                <input type="checkbox" id="system-debug" name="system[debug]" value="true">
+                Debug mode
+              </label>
+
+              <label for="system-serial-enable">
+                <input type="checkbox" id="system-serial-enable" name="system[serial][enable]" value="true">
+                Enable Serial port
+              </label>
+
+              <label for="system-telnet-enable">
+                <input type="checkbox" id="system-telnet-enable" name="system[telnet][enable]" value="true">
+                Enable Telnet
+              </label>
+
+              <div class="grid">
+                <label for="system-serial-baudrate">
+                  Serial port baud rate
+                  <input type="number" inputmode="numeric" id="system-serial-baudrate" name="system[serial][baudrate]" min="9600" max="115200" step="1" required>
+                  <small>Available: 9600, 19200, 38400, 57600, 74880, 115200</small>
+                </label>
+
+                <label for="system-telnet-port">
+                  Telnet port
+                  <input type="number" inputmode="numeric" id="system-telnet-port" name="system[telnet][port]" min="1" max="65535" step="1" required>
+                  <small>Default: 23</small>
+                </label>
+              </div>
+
+              <mark>After changing this settings, the ESP must be restarted for the changes to take effect.</mark>
+            </fieldset>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+
+      <hr />
+
+      <details>
+        <summary><b>Heating settings</b></summary>
+        <div>
+          <div id="heating-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="heating-settings" class="hidden">
+            <div class="grid">
+              <label for="heating-min-temp">
+                Minimum temperature
+                <input type="number" inputmode="numeric" id="heating-min-temp" name="heating[minTemp]" min="0" max="0" step="1" required>
+              </label>
+
+              <label for="heating-max-temp">
+                Maximum temperature
+                <input type="number" inputmode="numeric" id="heating-max-temp" name="heating[maxTemp]" min="0" max="0" step="1" required>
+              </label>
+            </div>
+
+            <div class="grid">
+              <label for="heating-hysteresis">
+                Hysteresis
+                <input type="number" inputmode="numeric" id="heating-hysteresis" name="heating[hysteresis]" min="0" max="5" step="0.05" required>
+              </label>
+
+              <label for="heating-max-modulation">
+                Max modulation level
+                <input type="number" inputmode="numeric" id="heating-max-modulation" name="heating[maxModulation]" min="1" max="100" step="1" required>
+              </label>
+            </div>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>DHW settings</b></summary>
+        <div>
+          <div id="dhw-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="dhw-settings" class="hidden">
+            <div class="grid">
+              <label for="dhw-min-temp">
+                Minimum temperature
+                <input type="number" inputmode="numeric" id="dhw-min-temp" name="dhw[minTemp]" min="0" max="0" step="1" required>
+              </label>
+
+              <label for="dhw-max-temp">
+                Maximum temperature
+                <input type="number" inputmode="numeric" id="dhw-max-temp" name="dhw[maxTemp]" min="0" max="0" step="1" required>
+              </label>
+            </div>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>Emergency mode settings</b></summary>
+        <div>
+          <div id="emergency-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="emergency-settings" class="hidden">
+            <fieldset>
+              <label for="emergency-enable">
+                <input type="checkbox" id="emergency-enable" name="emergency[enable]" value="true">
+                Enable
+              </label>
+
+              <small>
+                <b>!</b> Emergency mode can be useful <u>only</u> when using Equitherm and/or PID (when normal work) and when reporting indoor/outdoor temperature via MQTT or API. In this mode, sensor values that are reported via MQTT/API are not used.
+              </small>
+            </fieldset>
+
+            <div class="grid">
+              <label for="emergency-target">
+                Target temperature
+                <input type="number" inputmode="numeric" id="emergency-target" name="emergency[target]" min="0" max="0" step="1" required>
+                <small>
+                  <u>Indoor temperature</u> if Equitherm or PID is <b>enabled</b><br />
+                  <u>Heat carrier temperature</u> if Equitherm and PID <b>is disabled</b>
+                </small>
+              </label>
+
+              <label for="emergency-treshold-time">
+                Treshold time <small>(sec)</small>
+                <input type="number" inputmode="numeric" id="emergency-treshold-time" name="emergency[tresholdTime]" min="60" max="1800" step="1" required>
+              </label>
+            </div>
+
+            <fieldset>
+              <legend>Events</legend>
+
+              <label for="emergency-on-network-fault">
+                <input type="checkbox" id="emergency-on-network-fault" name="emergency[onNetworkFault]" value="true">
+                On network fault
+              </label>
+
+              <label for="emergency-on-mqtt-fault">
+                <input type="checkbox" id="emergency-on-mqtt-fault" name="emergency[onMqttFault]" value="true">
+                On MQTT fault
+              </label>
+            </fieldset>
+
+            <fieldset>
+              <legend>Using regulators</legend>
+
+              <label for="emergency-use-equitherm">
+                <input type="checkbox" id="emergency-use-equitherm" name="emergency[useEquitherm]" value="true">
+                <span>
+                  Equitherm <small>(requires at least an external/boiler <u>outdoor</u> sensor)</small>
+                </span>
+              </label>
+              <label for="emergency-use-pid">
+                <input type="checkbox" id="emergency-use-pid" name="emergency[usePid]" value="true">
+                <span>
+                  PID <small>(requires at least an external/BLE <u>indoor</u> sensor)</small>
+                </span>
+              </label>
+            </fieldset>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>Equitherm settings</b></summary>
+        <div>
+          <div id="equitherm-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="equitherm-settings" class="hidden">
+            <fieldset>
+              <label for="equitherm-enable">
+                <input type="checkbox" id="equitherm-enable" name="equitherm[enable]" value="true">
+                Enable
+              </label>
+            </fieldset>
+
+            <div class="grid">
+              <label for="equitherm-n-factor">
+                N factor
+                <input type="number" inputmode="numeric" id="equitherm-n-factor" name="equitherm[n_factor]" min="0.001" max="10" step="0.001" required>
+              </label>
+
+              <label for="equitherm-k-factor">
+                K factor
+                <input type="number" inputmode="numeric" id="equitherm-k-factor" name="equitherm[k_factor]" min="0" max="10" step="0.01" required>
+              </label>
+
+              <label for="equitherm-t-factor">
+                T factor
+                <input type="number" inputmode="numeric" id="equitherm-t-factor" name="equitherm[t_factor]" min="0" max="10" step="0.01" required>
+                <small>Not used if PID is enabled</small>
+              </label>
+            </div>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>PID settings</b></summary>
+        <div>
+          <div id="pid-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="pid-settings" class="hidden">
+            <fieldset>
+              <label for="pid-enable">
+                <input type="checkbox" id="pid-enable" name="pid[enable]" value="true">
+                Enable
+              </label>
+            </fieldset>
+
+            <div class="grid">
+              <label for="pid-p-factor">
+                P factor
+                <input type="number" inputmode="numeric" id="pid-p-factor" name="pid[p_factor]" min="0.1" max="1000" step="0.1" required>
+              </label>
+
+              <label for="pid-i-factor">
+                I factor
+                <input type="number" inputmode="numeric" id="pid-i-factor" name="pid[i_factor]" min="0" max="100" step="0.0001" required>
+              </label>
+
+              <label for="pid-d-factor">
+                D factor
+                <input type="number" inputmode="numeric" id="pid-d-factor" name="pid[d_factor]" min="0" max="100000" step="1" required>
+              </label>
+            </div>
+
+            <label for="pid-dt">
+              DT <small>in seconds</small>
+              <input type="number" inputmode="numeric" id="pid-dt" name="pid[dt]" min="30" max="600" step="1" required>
+            </label>
+
+            <hr />
+
+            <div class="grid">
+              <label for="pid-min-temp">
+                Minimum temperature
+                <input type="number" inputmode="numeric" id="pid-min-temp" name="pid[minTemp]" min="0" max="0" step="1" required>
+              </label>
+
+              <label for="pid-max-temp">
+                Maximum temperature
+                <input type="number" inputmode="numeric" id="pid-max-temp" name="pid[maxTemp]" min="0" max="0" step="1" required>
+              </label>
+            </div>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>OpenTherm settings</b></summary>
+        <div>
+          <div id="opentherm-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="opentherm-settings" class="hidden">
+            <fieldset>
+              <legend>Unit system</legend>
+
+              <label>
+                <input type="radio" class="opentherm-unit-system" name="opentherm[unitSystem]" value="0" />
+                Metric (celsius)
+              </label>
+
+              <label>
+                <input type="radio" class="opentherm-unit-system" name="opentherm[unitSystem]" value="1" />
+                Imperial (fahrenheit)
+              </label>
+            </fieldset>
+
+            <div class="grid">
+              <label for="opentherm-in-gpio">
+                In GPIO
+                <input type="number" inputmode="numeric" id="opentherm-in-gpio" name="opentherm[inGpio]" min="0" max="254" step="1">
+              </label>
+
+              <label for="opentherm-in-gpio">
+                Out GPIO
+                <input type="number" inputmode="numeric" id="opentherm-out-gpio" name="opentherm[outGpio]" min="0" max="254" step="1">
+              </label>
+            </div>
+
+            <div class="grid">
+              <label for="opentherm-rx-led-gpio">
+                RX LED GPIO
+                <input type="number" inputmode="numeric" id="opentherm-rx-led-gpio" name="opentherm[rxLedGpio]" min="0" max="254" step="1">
+                <small>blank - not use</small>
+              </label>
+
+              <label for="opentherm-member-id-code">
+                Master MemberID code
+                <input type="number" inputmode="numeric" id="opentherm-member-id-code" name="opentherm[memberIdCode]" min="0" max="65535" step="1" required>
+              </label>
+            </div>
+
+            <fieldset>
+              <legend>Options</legend>
+              <label for="opentherm-dhw-present">
+                <input type="checkbox" id="opentherm-dhw-present" name="opentherm[dhwPresent]" value="true">
+                DHW present
+              </label>
+
+              <label for="opentherm-sw-mode">
+                <input type="checkbox" id="opentherm-sw-mode" name="opentherm[summerWinterMode]" value="true">
+                Summer/winter mode
+              </label>
+
+              <label for="opentherm-heating-ch2-enabled">
+                <input type="checkbox" id="opentherm-heating-ch2-enabled" name="opentherm[heatingCh2Enabled]" value="true">
+                Heating CH2 always enabled
+              </label>
+
+              <label for="opentherm-heating-ch1-to-ch2">
+                <input type="checkbox" id="opentherm-heating-ch1-to-ch2" name="opentherm[heatingCh1ToCh2]" value="true">
+                Duplicate heating CH1 to CH2
+              </label>
+
+              <label for="opentherm-dhw-to-ch2">
+                <input type="checkbox" id="opentherm-dhw-to-ch2" name="opentherm[dhwToCh2]" value="true">
+                Duplicate DHW to CH2
+              </label>
+
+              <label for="opentherm-dhw-blocking">
+                <input type="checkbox" id="opentherm-dhw-blocking" name="opentherm[dhwBlocking]" value="true">
+                DHW blocking
+              </label>
+
+              <label for="opentherm-sync-modulation-with-heating">
+                <input type="checkbox" id="opentherm-sync-modulation-with-heating" name="opentherm[modulationSyncWithHeating]" value="true">
+                Sync modulation with heating
+              </label>
+
+              <label for="opentherm-get-min-max-temp">
+                <input type="checkbox" id="opentherm-get-min-max-temp" name="opentherm[getMinMaxTemp]" value="true">
+                Get min/max temp from boiler
+              </label>
+              
+              <hr />
+              <label for="opentherm-native-heating-control">
+                <input type="checkbox" id="opentherm-native-heating-control" name="opentherm[nativeHeatingControl]" value="true">
+                Native heating control (boiler)<br />
+                <small>Works <u>ONLY</u> if the boiler requires the desired room temperature and regulates the temperature of the coolant itself. Not compatible with PID and Equitherm regulators and hysteresis in firmware.</small>
+              </label>
+            </fieldset>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>MQTT settings</b></summary>
+        <div>
+          <div id="mqtt-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="mqtt-settings" class="hidden">
+            <fieldset>
+              <label for="mqtt-enable">
+                <input type="checkbox" id="mqtt-enable" name="mqtt[enable]" value="true">
+                Enable
+              </label>
+
+              <label for="mqtt-ha-discovery">
+                <input type="checkbox" id="mqtt-ha-discovery" name="mqtt[homeAssistantDiscovery]" value="true">
+                Home Assistant Discovery
+              </label>
+            </fieldset>
+
+            <div class="grid">
+              <label for="mqtt-server">
+                Server
+                <input type="text" id="mqtt-server" name="mqtt[server]" maxlength="80" required>
+              </label>
+
+              <label for="mqtt-port">
+                Port
+                <input type="number" inputmode="numeric" id="mqtt-port" name="mqtt[port]" min="1" max="65535" step="1" required>
+              </label>
+            </div>
+
+            <div class="grid">
+              <label for="mqtt-user">
+                User
+                <input type="text" id="mqtt-user" name="mqtt[user]" maxlength="32" required>
+              </label>
+
+              <label for="mqtt-password">
+                Password
+                <input type="password" id="mqtt-password" name="mqtt[password]" maxlength="32">
+              </label>
+            </div>
+
+            <div class="grid">
+              <label for="mqtt-prefix">
+                Prefix
+                <input type="text" id="mqtt-prefix" name="mqtt[prefix]" maxlength="32" required>
+              </label>
+
+              <label for="mqtt-interval">
+                Publish interval <small>(sec)</small>
+                <input type="number" inputmode="numeric" id="mqtt-interval" name="mqtt[interval]" min="3" max="60" step="1" required>
+              </label>
+            </div>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>Outdoor sensor settings</b></summary>
+        <div>
+          <div id="outdoor-sensor-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="outdoor-sensor-settings" class="hidden">
+            <fieldset>
+              <legend>Source type</legend>
+
+              <label>
+                <input type="radio" class="outdoor-sensor-type" name="sensors[outdoor][type]" value="0" />
+                From boiler via OpenTherm
+              </label>
+
+              <label>
+                <input type="radio" class="outdoor-sensor-type" name="sensors[outdoor][type]" value="1" />
+                Manual via MQTT/API
+              </label>
+
+              <label>
+                <input type="radio" class="outdoor-sensor-type" name="sensors[outdoor][type]" value="2" />
+                External (DS18B20)
+              </label>
+            </fieldset>
+
+            <label for="outdoor-sensor-gpio">
+              GPIO
+              <input type="number" inputmode="numeric" id="outdoor-sensor-gpio" name="sensors[outdoor][gpio]" min="0" max="254" step="1">
+            </label>
+
+            <label for="outdoor-sensor-offset">
+              Temp offset (calibration)
+              <input type="number" inputmode="numeric" id="outdoor-sensor-offset" name="sensors[outdoor][offset]" min="-10" max="10" step="0.01" required>
+            </label>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>Indoor sensor settings</b></summary>
+        <div>
+          <div id="indoor-sensor-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="indoor-sensor-settings" class="hidden">
+            <fieldset>
+              <legend>Source type</legend>
+
+              <label>
+                <input type="radio" class="indoor-sensor-type" name="sensors[indoor][type]" value="1" />
+                Manual via MQTT/API
+              </label>
+
+              <label>
+                <input type="radio" class="indoor-sensor-type" name="sensors[indoor][type]" value="2" />
+                External (DS18B20)
+              </label>
+
+              <label>
+                <input type="radio" class="indoor-sensor-type" name="sensors[indoor][type]" value="3" />
+                BLE device <i>(ONLY for some ESP32 which support BLE)</i>
+              </label>
+            </fieldset>
+
+            <label for="indoor-sensor-gpio">
+              GPIO
+              <input type="number" inputmode="numeric" id="indoor-sensor-gpio" name="sensors[indoor][gpio]" min="0" max="254" step="1">
+            </label>
+
+            <div class="grid">
+              <label for="indoor-sensor-offset">
+                Temp offset (calibration)
+                <input type="number" inputmode="numeric" id="indoor-sensor-offset" name="sensors[indoor][offset]" min="-10" max="10" step="0.01" required>
+              </label>
+
+              <label for="indoor-sensor-ble-addresss">
+                BLE addresss
+                <input type="text" id="indoor-sensor-ble-addresss" name="sensors[indoor][bleAddresss]" pattern="([A-Fa-f0-9]{2}:){5}[A-Fa-f0-9]{2}">
+                <small>ONLY for some ESP32 which support BLE</small>
+              </label>
+            </div>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+
+      <hr />
+
+      <details>
+        <summary><b>External pump settings</b></summary>
+        <div>
+          <div id="extpump-settings-busy" aria-busy="true"></div>
+          <form action="/api/settings" id="extpump-settings" class="hidden">
+            <fieldset>
+              <label for="extpump-use">
+                <input type="checkbox" id="extpump-use" name="externalPump[use]" value="true">
+                Use external pump
+              </label>
+            </fieldset>
+
+            <div class="grid">
+              <label for="extpump-gpio">
+                Relay GPIO
+                <input type="number" inputmode="numeric" id="extpump-gpio" name="externalPump[gpio]" min="0" max="254" step="1">
+              </label>
+
+              <label for="extpump-pc-time">
+                Post circulation time <small>(min)</small>
+                <input type="number" inputmode="numeric" id="extpump-pc-time" name="externalPump[postCirculationTime]" min="1" max="120" step="1" required>
+              </label>
+            </div>
+
+            <div class="grid">
+              <label for="extpump-as-interval">
+                Anti stuck interval <small>(days)</small>
+                <input type="number" inputmode="numeric" id="extpump-as-interval" name="externalPump[antiStuckInterval]" min="1" max="366" step="1" required>
+              </label>
+
+              <label for="extpump-as-time">
+                Anti stuck time <small>(min)</small>
+                <input type="number" inputmode="numeric" id="extpump-as-time" name="externalPump[antiStuckTime]" min="1" max="20" step="1" required>
+              </label>
+            </div>
+
+            <button type="submit">Save</button>
+          </form>
+        </div>
+      </details>
+    </article>
+  </main>
+
+  <footer class="container">
+    <small>
+      <b>Made by Laxilef</b>
+      • <a href="https://github.com/Laxilef/OTGateway/blob/master/LICENSE" target="_blank" class="secondary">License</a>
+      • <a href="https://github.com/Laxilef/OTGateway/blob/master/" target="_blank" class="secondary">Source code</a>
+      • <a href="https://github.com/Laxilef/OTGateway/wiki" target="_blank" class="secondary">Help</a>
+      • <a href="https://github.com/Laxilef/OTGateway/issues" target="_blank" class="secondary">Issue & questions</a>
+      • <a href="https://github.com/Laxilef/OTGateway/releases" target="_blank" class="secondary">Releases</a>
+    </small>
+  </footer>
+
+  <script src="/static/app.js"></script>
+  <script>
+    window.onload = async function () {
+      const fillData = (data) => {
+        // System
+        setCheckboxValue('#system-debug', data.system.debug);
+        setCheckboxValue('#system-serial-enable', data.system.serial.enable);
+        setInputValue('#system-serial-baudrate', data.system.serial.baudrate);
+        setCheckboxValue('#system-telnet-enable', data.system.telnet.enable);
+        setInputValue('#system-telnet-port', data.system.telnet.port);
+        setRadioValue('.system-unit-system', data.system.unitSystem);
+        setInputValue('#system-status-led-gpio', data.system.statusLedGpio < 255 ? data.system.statusLedGpio : '');
+        setBusy('#system-settings-busy', '#system-settings', false);
+
+        // Portal
+        setCheckboxValue('#portal-auth', data.portal.auth);
+        setInputValue('#portal-login', data.portal.login);
+        setInputValue('#portal-password', data.portal.password);
+        setBusy('#portal-settings-busy', '#portal-settings', false);
+
+        // Opentherm
+        setRadioValue('.opentherm-unit-system', data.opentherm.unitSystem);
+        setInputValue('#opentherm-in-gpio', data.opentherm.inGpio < 255 ? data.opentherm.inGpio : '');
+        setInputValue('#opentherm-out-gpio', data.opentherm.outGpio < 255 ? data.opentherm.outGpio : '');
+        setInputValue('#opentherm-rx-led-gpio', data.opentherm.rxLedGpio < 255 ? data.opentherm.rxLedGpio : '');
+        setInputValue('#opentherm-member-id-code', data.opentherm.memberIdCode);
+        setCheckboxValue('#opentherm-dhw-present', data.opentherm.dhwPresent);
+        setCheckboxValue('#opentherm-sw-mode', data.opentherm.summerWinterMode);
+        setCheckboxValue('#opentherm-heating-ch2-enabled', data.opentherm.heatingCh2Enabled);
+        setCheckboxValue('#opentherm-heating-ch1-to-ch2', data.opentherm.heatingCh1ToCh2);
+        setCheckboxValue('#opentherm-dhw-to-ch2', data.opentherm.dhwToCh2);
+        setCheckboxValue('#opentherm-dhw-blocking', data.opentherm.dhwBlocking);
+        setCheckboxValue('#opentherm-sync-modulation-with-heating', data.opentherm.modulationSyncWithHeating);
+        setCheckboxValue('#opentherm-get-min-max-temp', data.opentherm.getMinMaxTemp);
+        setCheckboxValue('#opentherm-native-heating-control', data.opentherm.nativeHeatingControl);
+        setBusy('#opentherm-settings-busy', '#opentherm-settings', false);
+
+        // MQTT
+        setCheckboxValue('#mqtt-enable', data.mqtt.enable);
+        setCheckboxValue('#mqtt-ha-discovery', data.mqtt.homeAssistantDiscovery);
+        setInputValue('#mqtt-server', data.mqtt.server);
+        setInputValue('#mqtt-port', data.mqtt.port);
+        setInputValue('#mqtt-user', data.mqtt.user);
+        setInputValue('#mqtt-password', data.mqtt.password);
+        setInputValue('#mqtt-prefix', data.mqtt.prefix);
+        setInputValue('#mqtt-interval', data.mqtt.interval);
+        setBusy('#mqtt-settings-busy', '#mqtt-settings', false);
+
+        // Outdoor sensor
+        setRadioValue('.outdoor-sensor-type', data.sensors.outdoor.type);
+        setInputValue('#outdoor-sensor-gpio', data.sensors.outdoor.gpio  < 255 ? data.sensors.outdoor.gpio : '');
+        setInputValue('#outdoor-sensor-offset', data.sensors.outdoor.offset);
+        setBusy('#outdoor-sensor-settings-busy', '#outdoor-sensor-settings', false);
+
+        // Indoor sensor
+        setRadioValue('.indoor-sensor-type', data.sensors.indoor.type);
+        setInputValue('#indoor-sensor-gpio', data.sensors.indoor.gpio < 255 ? data.sensors.indoor.gpio : '');
+        setInputValue('#indoor-sensor-offset', data.sensors.indoor.offset);
+        setInputValue('#indoor-sensor-ble-addresss', data.sensors.indoor.bleAddresss);
+        setBusy('#indoor-sensor-settings-busy', '#indoor-sensor-settings', false);
+
+        // Extpump
+        setCheckboxValue('#extpump-use', data.externalPump.use);
+        setInputValue('#extpump-gpio', data.externalPump.gpio < 255 ? data.externalPump.gpio : '');
+        setInputValue('#extpump-pc-time', data.externalPump.postCirculationTime);
+        setInputValue('#extpump-as-interval', data.externalPump.antiStuckInterval);
+        setInputValue('#extpump-as-time', data.externalPump.antiStuckTime);
+        setBusy('#extpump-settings-busy', '#extpump-settings', false);
+
+        // Heating
+        setInputValue('#heating-min-temp', data.heating.minTemp, {
+          "min": data.system.unitSystem == 0 ? 0 : 32,
+          "max": data.system.unitSystem == 0 ? 99 : 211
+        });
+        setInputValue('#heating-max-temp', data.heating.maxTemp, {
+          "min": data.system.unitSystem == 0 ? 1 : 33,
+          "max": data.system.unitSystem == 0 ? 100 : 212
+        });
+        setInputValue('#heating-hysteresis', data.heating.hysteresis);
+        setInputValue('#heating-max-modulation', data.heating.maxModulation);
+        setBusy('#heating-settings-busy', '#heating-settings', false);
+
+        // DHW
+        setInputValue('#dhw-min-temp', data.dhw.minTemp, {
+          "min": data.system.unitSystem == 0 ? 0 : 32,
+          "max": data.system.unitSystem == 0 ? 99 : 211
+        });
+        setInputValue('#dhw-max-temp', data.dhw.maxTemp, {
+          "min": data.system.unitSystem == 0 ? 1 : 33,
+          "max": data.system.unitSystem == 0 ? 100 : 212
+        });
+        setBusy('#dhw-settings-busy', '#dhw-settings', false);
+
+        // Emergency mode
+        setCheckboxValue('#emergency-enable', data.emergency.enable);
+        setInputValue('#emergency-treshold-time', data.emergency.tresholdTime);
+        setCheckboxValue('#emergency-use-equitherm', data.emergency.useEquitherm);
+        setCheckboxValue('#emergency-use-pid', data.emergency.usePid);
+        setCheckboxValue('#emergency-on-network-fault', data.emergency.onNetworkFault);
+        setCheckboxValue('#emergency-on-mqtt-fault', data.emergency.onMqttFault);
+        setInputValue('#emergency-target', data.emergency.target, {
+          "min": (!data.emergency.useEquitherm && !data.emergency.usePid) ? data.heating.minTemp : 10,
+          "max": (!data.emergency.useEquitherm && !data.emergency.usePid) ? data.heating.maxTemp : 30,
+        });
+        setBusy('#emergency-settings-busy', '#emergency-settings', false);
+
+        // Equitherm
+        setCheckboxValue('#equitherm-enable', data.equitherm.enable);
+        setInputValue('#equitherm-n-factor', data.equitherm.n_factor);
+        setInputValue('#equitherm-k-factor', data.equitherm.k_factor);
+        setInputValue('#equitherm-t-factor', data.equitherm.t_factor);
+        setBusy('#equitherm-settings-busy', '#equitherm-settings', false);
+
+        // PID
+        setCheckboxValue('#pid-enable', data.pid.enable);
+        setInputValue('#pid-p-factor', data.pid.p_factor);
+        setInputValue('#pid-i-factor', data.pid.i_factor);
+        setInputValue('#pid-d-factor', data.pid.d_factor);
+        setInputValue('#pid-dt', data.pid.dt);
+        setInputValue('#pid-min-temp', data.pid.minTemp, {
+          "min": 0,
+          "max": data.system.unitSystem == 0 ? 99 : 211
+        });
+        setInputValue('#pid-max-temp', data.pid.maxTemp, {
+          "min": 1,
+          "max": data.system.unitSystem == 0 ? 100 : 212
+        });
+        setBusy('#pid-settings-busy', '#pid-settings', false);
+      };
+
+      try {
+        const response = await fetch('/api/settings', { cache: 'no-cache' });
+        if (!response.ok) {
+          throw new Error('Response not valid');
+        }
+
+        const result = await response.json();
+        fillData(result);
+        setupForm('#portal-settings', fillData);
+        setupForm('#system-settings', fillData);
+        setupForm('#heating-settings', fillData);
+        setupForm('#dhw-settings', fillData);
+        setupForm('#emergency-settings', fillData);
+        setupForm('#equitherm-settings', fillData);
+        setupForm('#pid-settings', fillData);
+        setupForm('#opentherm-settings', fillData);
+        setupForm('#mqtt-settings', fillData);
+        setupForm('#outdoor-sensor-settings', fillData);
+        setupForm('#indoor-sensor-settings', fillData);
+        setupForm('#extpump-settings', fillData);
+
+      } catch (error) {
+        console.log(error);
+      }
+    };
+  </script>
+</body>
+
+</html>

src_data/static/app.css

@@ -0,0 +1,196 @@
+@media (min-width: 576px) {
+  article {
+    --pico-block-spacing-vertical: calc(var(--pico-spacing) * 0.75);
+    --pico-block-spacing-horizontal: calc(var(--pico-spacing) * 0.75);
+  }
+}
+
+@media (min-width: 768px) {
+  article {
+    --pico-block-spacing-vertical: var(--pico-spacing);
+    --pico-block-spacing-horizontal: var(--pico-spacing);
+  }
+}
+
+@media (min-width: 1024px) {
+  article {
+    --pico-block-spacing-vertical: calc(var(--pico-spacing) * 1.25);
+    --pico-block-spacing-horizontal: calc(var(--pico-spacing) * 1.25);
+  }
+}
+
+@media (min-width: 1280px) {
+  article {
+    --pico-block-spacing-vertical: calc(var(--pico-spacing) * 1.5);
+    --pico-block-spacing-horizontal: calc(var(--pico-spacing) * 1.5);
+  }
+
+	.container {
+		max-width: 1000px;
+	}
+}
+
+@media (min-width: 1536px) {
+  article {
+    --pico-block-spacing-vertical: calc(var(--pico-spacing) * 1.75);
+    --pico-block-spacing-horizontal: calc(var(--pico-spacing) * 1.75);
+  }
+
+	.container {
+		max-width: 1000px;
+	}
+}
+
+header, main, footer {
+	padding-top: 1rem !important;
+	padding-bottom: 1rem !important;
+}
+
+article {
+	margin-bottom: 1rem;
+}
+
+footer {
+	text-align: center;
+}
+
+nav li a:has(> div.logo) {
+	margin-bottom: 0;
+}
+
+details > div {
+	padding: 0 var(--pico-form-element-spacing-horizontal);
+}
+
+pre {
+	padding: 0.5rem;
+}
+
+
+.hidden {
+	display: none !important;
+}
+
+button.success {
+	background-color: var(--pico-form-element-valid-border-color);
+	border-color: var(--pico-form-element-valid-border-color);
+}
+
+button.failed {
+	background-color: var(--pico-form-element-invalid-border-color);
+	border-color: var(--pico-form-element-invalid-border-color);
+}
+
+tr.network:hover {
+	--pico-background-color: var(--pico-primary-focus);
+	cursor: pointer;
+}
+
+.greatSignal {
+	background-color: var(--pico-form-element-valid-border-color);
+}
+
+.normalSignal {
+	background-color: #e48500;
+}
+
+.badSignal {
+	background-color: var(--pico-form-element-invalid-border-color);
+}
+
+.primary {
+	border: 0.25rem solid var(--pico-form-element-invalid-border-color);
+	padding: 1rem;
+	margin-bottom: 1rem;
+}
+
+.logo {
+	display: inline-block;
+	padding: calc(var(--pico-nav-link-spacing-vertical) - var(--pico-border-width) * 2) var(--pico-nav-link-spacing-horizontal);
+	vertical-align: baseline;
+	line-height: var(--pico-line-height);
+	background-color: var(--pico-code-kbd-background-color);
+	border-radius: var(--pico-border-radius);
+  color: var(--pico-code-kbd-color);
+  font-weight: bolder;
+	font-size: 1.3rem;
+  font-family: var(--pico-font-family-monospace);
+}
+
+.thermostat {
+	display: grid;
+  grid-template-columns: 0.5fr 2fr 0.5fr;
+  grid-template-rows: 0.25fr 1fr 0.25fr;
+  gap: 0px 0px;
+  grid-auto-flow: row;
+  justify-content: center;
+  justify-items: center;
+  grid-template-areas:
+    ". thermostat-header ."
+    "thermostat-minus thermostat-temp thermostat-plus"
+    "thermostat-control thermostat-control thermostat-control";
+
+	border: .25rem solid var(--pico-blockquote-border-color);
+	padding: 0.5rem;
+}
+
+.thermostat-header {
+  justify-self: center;
+  align-self: end;
+  grid-area: thermostat-header;
+
+	font-size: 1rem;
+  font-weight: bold;
+  border-bottom: .25rem solid var(--pico-primary-hover-border);
+	margin: 0 0 1rem 0;
+}
+
+.thermostat-temp {
+	display: grid;
+  grid-template-columns: 1fr;
+  grid-template-rows: 1fr 0.5fr;
+  gap: 0px 0px;
+  grid-auto-flow: row;
+  grid-template-areas:
+    "thermostat-temp-target"
+    "thermostat-temp-current";
+  grid-area: thermostat-temp;
+}
+
+.thermostat-temp-target {
+  justify-self: center;
+  align-self: center;
+  grid-area: thermostat-temp-target;
+
+	font-weight: bold;
+  font-size: 1.75rem;
+}
+
+.thermostat-temp-current {
+  justify-self: center;
+  align-self: start;
+  grid-area: thermostat-temp-current;
+
+	color: var(--pico-secondary);
+  font-size: 0.85rem;
+}
+
+.thermostat-minus {
+  justify-self: end;
+  align-self: center;
+  grid-area: thermostat-minus;
+}
+
+.thermostat-plus {
+  justify-self: start;
+  align-self: center;
+  grid-area: thermostat-plus;
+}
+
+.thermostat-control {
+  justify-self: center;
+  align-self: start;
+  grid-area: thermostat-control;
+
+	margin: 1.25rem 0;
+}

src_data/static/app.js

@@ -0,0 +1,639 @@
+function setupForm(formSelector, onResultCallback = null) {
+  const form = document.querySelector(formSelector);
+  if (!form) {
+    return;
+  }
+
+  form.querySelectorAll('input').forEach(item => {
+    item.addEventListener('change', (e) => {
+      e.target.setAttribute('aria-invalid', !e.target.checkValidity());
+    })
+  });
+
+  const url = form.action;
+  let button = form.querySelector('button[type="submit"]');
+  let defaultText;
+
+  if (button) {
+    defaultText = button.textContent;
+  }
+
+  form.addEventListener('submit', async (event) => {
+    event.preventDefault();
+
+    if (button) {
+      button.textContent = 'Please wait...';
+      button.setAttribute('disabled', true);
+      button.setAttribute('aria-busy', true);
+    }
+
+    const onSuccess = (result) => {
+      if (button) {
+        button.textContent = 'Saved';
+        button.classList.add('success');
+        button.removeAttribute('aria-busy');
+
+        setTimeout(() => {
+          button.removeAttribute('disabled');
+          button.classList.remove('success', 'failed');
+          button.textContent = defaultText;
+        }, 5000);
+      }
+    };
+
+    const onFailed = () => {
+      if (button) {
+        button.textContent = 'Error';
+        button.classList.add('failed');
+        button.removeAttribute('aria-busy');
+
+        setTimeout(() => {
+          button.removeAttribute('disabled');
+          button.classList.remove('success', 'failed');
+          button.textContent = defaultText;
+        }, 5000);
+      }
+    };
+
+    try {
+      let fd = new FormData(form);
+      let checkboxes = form.querySelectorAll('input[type="checkbox"]');
+      for (let checkbox of checkboxes) {
+        fd.append(checkbox.getAttribute('name'), checkbox.checked);
+      }
+
+      let response = await fetch(url, {
+        method: 'POST',
+        cache: 'no-cache',
+        headers: {
+          'Content-Type': 'application/json'
+        },
+        body: form2json(fd)
+      });
+
+      if (!response.ok) {
+        throw new Error('Response not valid');
+      }
+
+      const result = response.status != 204 ? (await response.json()) : null;
+      onSuccess(result);
+
+      if (onResultCallback instanceof Function) {
+        onResultCallback(result);
+      }
+
+    } catch (err) {
+      console.log(err);
+      onFailed();
+    }
+  });
+}
+
+function setupNetworkScanForm(formSelector, tableSelector) {
+  const form = document.querySelector(formSelector);
+  if (!form) {
+    console.error("form not found");
+    return;
+  }
+
+  const url = form.action;
+  let button = form.querySelector('button[type="submit"]');
+  let defaultText;
+
+  if (button) {
+    defaultText = button.innerHTML;
+  }
+
+  const onSubmitFn = async (event) => {
+    if (event) {
+      event.preventDefault();
+    }
+
+    if (button) {
+      button.innerHTML = 'Please wait...';
+      button.setAttribute('disabled', true);
+      button.setAttribute('aria-busy', true);
+    }
+
+    let table = document.querySelector(tableSelector);
+    if (!table) {
+      console.error("table not found");
+      return;
+    }
+
+    const onSuccess = async (response) => {
+      let result = await response.json();
+      console.log('networks: ', result);
+
+      let tbody = table.querySelector('tbody');
+      if (!tbody) {
+        tbody = table.createTBody();
+      }
+
+      while (tbody.rows.length > 0) {
+        tbody.rows[0].remove();
+      }
+
+      for (let i = 0; i < result.length; i++) {
+        let row = tbody.insertRow(-1);
+        row.classList.add("network");
+        row.setAttribute('data-ssid', result[i].hidden ? '' : result[i].ssid);
+        row.onclick = function () {
+          const input = document.querySelector('input.sta-ssid');
+          const ssid = this.getAttribute('data-ssid');
+          if (!input || !ssid) {
+            return;
+          }
+
+          input.value = ssid;
+          input.focus();
+        };
+
+        row.insertCell().textContent = "#" + (i + 1);
+        row.insertCell().innerHTML = result[i].hidden ? '<i>Hidden</i>' : result[i].ssid;
+
+        const signalCell = row.insertCell();
+        const signalElement = document.createElement("kbd");
+        signalElement.textContent = result[i].signalQuality + "%";
+        if (result[i].signalQuality > 60) {
+          signalElement.classList.add('greatSignal');
+        } else if (result[i].signalQuality > 40) {
+          signalElement.classList.add('normalSignal');
+        } else {
+          signalElement.classList.add('badSignal');
+        }
+        signalCell.appendChild(signalElement);
+      }
+
+      if (button) {
+        button.innerHTML = defaultText;
+        button.removeAttribute('disabled');
+        button.removeAttribute('aria-busy');
+      }
+    };
+
+    const onFailed = async (response) => {
+      table.classList.remove('hidden');
+
+      if (button) {
+        button.innerHTML = defaultText;
+        button.removeAttribute('disabled');
+        button.removeAttribute('aria-busy');
+      }
+    };
+
+    let attempts = 6;
+    let attemptFn = async () => {
+      attempts--;
+
+      try {
+        let response = await fetch(url, { cache: 'no-cache' });
+
+        if (response.status == 200) {
+          await onSuccess(response);
+
+        } else if (attempts <= 0) {
+          await onFailed(response);
+
+        } else {
+          setTimeout(attemptFn, 5000);
+        }
+
+      } catch (err) {
+        if (attempts <= 0) {
+          onFailed(err);
+
+        } else {
+          setTimeout(attemptFn, 10000);
+        }
+      }
+    };
+    attemptFn();
+  };
+
+  form.addEventListener('submit', onSubmitFn);
+  onSubmitFn();
+}
+
+function setupRestoreBackupForm(formSelector) {
+  const form = document.querySelector(formSelector);
+  if (!form) {
+    return;
+  }
+
+  const url = form.action;
+  let button = form.querySelector('button[type="submit"]');
+  let defaultText;
+
+  if (button) {
+    defaultText = button.textContent;
+  }
+
+  form.addEventListener('submit', async (event) => {
+    event.preventDefault();
+
+    if (button) {
+      button.textContent = 'Please wait...';
+      button.setAttribute('disabled', true);
+      button.setAttribute('aria-busy', true);
+    }
+
+    const onSuccess = (response) => {
+      if (button) {
+        button.textContent = 'Restored';
+        button.classList.add('success');
+        button.removeAttribute('aria-busy');
+
+        setTimeout(() => {
+          button.removeAttribute('disabled');
+          button.classList.remove('success', 'failed');
+          button.textContent = defaultText;
+        }, 5000);
+      }
+    };
+
+    const onFailed = (response) => {
+      if (button) {
+        button.textContent = 'Error';
+        button.classList.add('failed');
+        button.removeAttribute('aria-busy');
+
+        setTimeout(() => {
+          button.removeAttribute('disabled');
+          button.classList.remove('success', 'failed');
+          button.textContent = defaultText;
+        }, 5000);
+      }
+    };
+
+    const files = form.querySelector('#restore-file').files;
+    if (files.length <= 0) {
+      onFailed(false);
+      return;
+    }
+
+    let reader = new FileReader();
+    reader.readAsText(files[0]);
+    reader.onload = async function () {
+      try {
+        let response = await fetch(url, {
+          method: 'POST',
+          cache: 'no-cache',
+          headers: {
+            'Content-Type': 'application/json'
+          },
+          body: reader.result
+        });
+
+        if (response.ok) {
+          onSuccess(response);
+
+        } else {
+          onFailed(response);
+        }
+
+      } catch (err) {
+        onFailed(false);
+      }
+    };
+    reader.onerror = function () {
+      console.log(reader.error);
+    };
+  });
+}
+
+function setupUpgradeForm(formSelector) {
+  const form = document.querySelector(formSelector);
+  if (!form) {
+    return;
+  }
+
+  const url = form.action;
+  let button = form.querySelector('button[type="submit"]');
+  let defaultText;
+
+  if (button) {
+    defaultText = button.textContent;
+  }
+
+  const statusToText = (status) => {
+    switch (status) {
+      case 0:
+        return "None";
+      case 1:
+        return "No file";
+      case 2:
+        return "Success";
+      case 3:
+        return "Prohibited";
+      case 4:
+        return "Aborted";
+      case 5:
+        return "Error on start";
+      case 6:
+        return "Error on write";
+      case 7:
+        return "Error on finish";
+      default:
+        return "Unknown";
+    }
+  };
+
+  const onResult = async (response) => {
+    if (!response) {
+      return;
+    }
+
+    const result = await response.json();
+
+    let resItem = form.querySelector('.upgrade-firmware-result');
+    if (resItem && result.firmware.status > 1) {
+      resItem.textContent = statusToText(result.firmware.status);
+      resItem.classList.remove('hidden');
+
+      if (result.firmware.status == 2) {
+        resItem.classList.remove('failed');
+        resItem.classList.add('success');
+      } else {
+        resItem.classList.remove('success');
+        resItem.classList.add('failed');
+
+        if (result.firmware.error != "") {
+          resItem.textContent += ": " + result.firmware.error;
+        }
+      }
+    }
+
+    resItem = form.querySelector('.upgrade-filesystem-result');
+    if (resItem && result.filesystem.status > 1) {
+      resItem.textContent = statusToText(result.filesystem.status);
+      resItem.classList.remove('hidden');
+
+      if (result.filesystem.status == 2) {
+        resItem.classList.remove('failed');
+        resItem.classList.add('success');
+      } else {
+        resItem.classList.remove('success');
+        resItem.classList.add('failed');
+
+        if (result.filesystem.error != "") {
+          resItem.textContent += ": " + result.filesystem.error;
+        }
+      }
+    }
+  };
+
+  const onSuccess = (response) => {
+    onResult(response);
+
+    if (button) {
+      button.textContent = defaultText;
+      button.removeAttribute('aria-busy');
+
+      setTimeout(() => {
+        button.removeAttribute('disabled');
+        button.classList.remove('success', 'failed');
+        button.textContent = defaultText;
+      }, 5000);
+    }
+  };
+
+  const onFailed = (response) => {
+    if (button) {
+      button.textContent = 'Error';
+      button.classList.add('failed');
+      button.removeAttribute('aria-busy');
+
+      setTimeout(() => {
+        button.removeAttribute('disabled');
+        button.classList.remove('success', 'failed');
+        button.textContent = defaultText;
+      }, 5000);
+    }
+  };
+
+  form.addEventListener('submit', async (event) => {
+    event.preventDefault();
+
+    hide('.upgrade-firmware-result');
+    hide('.upgrade-filesystem-result');
+
+    if (button) {
+      button.textContent = 'Uploading...';
+      button.setAttribute('disabled', true);
+      button.setAttribute('aria-busy', true);
+    }
+
+    try {
+      let fd = new FormData(form);
+      let response = await fetch(url, {
+        method: 'POST',
+        cache: 'no-cache',
+        body: fd
+      });
+
+      if (response.status >= 200 && response.status < 500) {
+        onSuccess(response);
+
+      } else {
+        onFailed(response);
+      }
+
+    } catch (err) {
+      onFailed(false);
+    }
+  });
+}
+
+
+function setBusy(busySelector, contentSelector, value) {
+  if (!value) {
+    hide(busySelector);
+    show(contentSelector);
+
+  } else {
+    show(busySelector);
+    hide(contentSelector);
+  }
+}
+
+function setState(selector, value) {
+  let item = document.querySelector(selector);
+  if (!item) {
+    return;
+  }
+
+  item.setAttribute('aria-invalid', !value);
+}
+
+function setValue(selector, value) {
+  let items = document.querySelectorAll(selector);
+  if (!items.length) {
+    return;
+  }
+
+  for (let item of items) {
+    item.innerHTML = value;
+  }
+}
+
+function setCheckboxValue(selector, value) {
+  let item = document.querySelector(selector);
+  if (!item) {
+    return;
+  }
+
+  item.checked = value;
+}
+
+function setRadioValue(selector, value) {
+  let items = document.querySelectorAll(selector);
+  if (!items.length) {
+    return;
+  }
+
+  for (let item of items) {
+    item.checked = item.value == value;
+  }
+}
+
+function setInputValue(selector, value, attrs = {}) {
+  let items = document.querySelectorAll(selector);
+  if (!items.length) {
+    return;
+  }
+
+  for (let item of items) {
+    item.value = value;
+
+    if (attrs instanceof Object) {
+      for (let attrKey of Object.keys(attrs)) {
+        item.setAttribute(attrKey, attrs[attrKey]);
+      }
+    }
+  }
+}
+
+function show(selector) {
+  let items = document.querySelectorAll(selector);
+  if (!items.length) {
+    return;
+  }
+
+  for (let item of items) {
+    if (item.classList.contains('hidden')) {
+      item.classList.remove('hidden');
+    }
+  }
+}
+
+function hide(selector) {
+  let items = document.querySelectorAll(selector);
+  if (!items.length) {
+    return;
+  }
+
+  for (let item of items) {
+    if (!item.classList.contains('hidden')) {
+      item.classList.add('hidden');
+    }
+  }
+}
+
+function unit2str(unitSystem, units = {}, defaultValue = '?') {
+  return (unitSystem in units) 
+    ? units[unitSystem] 
+    : defaultValue;
+}
+
+function temperatureUnit(unitSystem) {
+  return unit2str(unitSystem, {
+    0: "°C",
+    1: "°F"
+  });
+}
+
+function pressureUnit(unitSystem) {
+  return unit2str(unitSystem, {
+    0: "bar",
+    1: "psi"
+  });
+}
+
+function volumeUnit(unitSystem) {
+  return unit2str(unitSystem, {
+    0: "L",
+    1: "gal"
+  });
+}
+
+function memberIdToVendor(memberId) {
+  // https://github.com/Jeroen88/EasyOpenTherm/blob/main/src/EasyOpenTherm.h
+  // https://github.com/Evgen2/SmartTherm/blob/v0.7/src/Web.cpp
+  const vendorList = {
+    1:    "Baxi Fourtech/Luna 3",
+    2:    "AWB/Brink",
+    4:    "ATAG/Brötje/ELCO/GEMINOX",
+    5:    "Itho Daalderop",
+    6:    "IDEAL",
+    8:    "Buderus/Bosch/Hoval",
+    9:    "Ferroli",
+    11:   "Remeha/De Dietrich",
+    16:   "Unical",
+    24:   "Vaillant/Bulex",
+    27:   "Baxi",
+    29:   "Itho Daalderop",
+    33:   "Viessmann",
+    41:   "Italtherm",
+    56:   "Baxi Luna Duo-Tec",
+    131:  "Nefit",
+    148:  "Navien",
+    173:  "Intergas",
+    247:  "Baxi Ampera",
+    248:  "Zota Lux-X"
+  };
+  
+  return (memberId in vendorList) 
+    ? vendorList[memberId] 
+    : "unknown vendor";
+}
+
+function form2json(data) {
+  let method = function (object, pair) {
+    let keys = pair[0].replace(/\]/g, '').split('[');
+    let key = keys[0];
+    let value = pair[1];
+    if (value === 'true' || value === 'false') {
+      value = value === 'true';
+    } else if (typeof (value) === 'string' && value.trim() !== '' && !isNaN(value)) {
+      value = parseFloat(value);
+    }
+
+    if (keys.length > 1) {
+      let i, x, segment;
+      let last = value;
+      let type = isNaN(keys[1]) ? {} : [];
+      value = segment = object[key] || type;
+
+      for (i = 1; i < keys.length; i++) {
+        x = keys[i];
+        if (i == keys.length - 1) {
+          if (Array.isArray(segment)) {
+            segment.push(last);
+          } else {
+            segment[x] = last;
+          }
+        } else if (segment[x] == undefined) {
+          segment[x] = isNaN(keys[i + 1]) ? {} : [];
+        }
+        segment = segment[x];
+      }
+    }
+
+    object[key] = value;
+    return object;
+  }
+
+  let object = Array.from(data).reduce(method, {});
+  return JSON.stringify(object);
+}

src_data/upgrade.html

@@ -0,0 +1,108 @@
+<!doctype html>
+<html lang="en">
+
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <title>Upgrade - OpenTherm Gateway</title>
+  <link rel="stylesheet" href="/static/pico.min.css">
+  <link rel="stylesheet" href="/static/app.css">
+</head>
+
+<body>
+  <header class="container">
+    <nav>
+      <ul>
+        <li><a href="/"><div class="logo">OpenTherm Gateway</div></a></li>
+      </ul>
+      <ul>
+        <li><a href="https://github.com/Laxilef/OTGateway/wiki" role="button" class="secondary" target="_blank">Help</a></li>
+      </ul>
+    </nav>
+  </header>
+
+  <main class="container">
+    <article>
+      <div>
+        <hgroup>
+          <h2>Backup & restore</h2>
+          <p>
+            In this section you can save and restore a backup of ALL settings.
+          </p>
+        </hgroup>
+
+        <form action="/api/backup/restore" id="restore">
+          <label for="restore-file">
+            Settings file:
+            <input type="file" name="settings" id="restore-file" accept=".json">
+          </label>
+
+          <div class="grid">
+            <button type="submit">Restore</button>
+            <button type="button" class="secondary" onclick="window.location='/api/backup/save';">Backup</button>
+          </div>
+        </form>
+      </div>
+    </article>
+
+    <article>
+      <div>
+        <hgroup>
+          <h2>Upgrade</h2>
+          <p>
+            In this section you can upgrade the firmware and filesystem of your device.<br />
+            Latest releases can be downloaded from the <a href="https://github.com/Laxilef/OTGateway/releases" target="_blank">Releases page</a> of the project repository.
+          </p>
+        </hgroup>
+
+        <form action="/api/upgrade" id="upgrade">
+          <fieldset class="primary">
+            <label for="firmware-file">
+              Firmware:
+              <div class="grid">
+                <input type="file" name="firmware" id="firmware-file" accept=".bin">
+                <button type="button" class="upgrade-firmware-result hidden" disabled></button>
+              </div>
+            </label>
+
+            <label for="filesystem-file">
+              Filesystem:
+              <div class="grid">
+                <input type="file" name="filesystem" id="filesystem-file" accept=".bin">
+                <button type="button" class="upgrade-filesystem-result hidden" disabled></button>
+              </div>
+            </label>
+          </fieldset>
+
+          <ul>
+            <li><mark>After a successful upgrade the filesystem, ALL settings will be reset to default values! Save backup before upgrading.</mark></li>
+            <li><mark>After a successful upgrade, the device will automatically reboot after 10 seconds.</mark></li>
+          </ul>
+
+          <button type="submit">Upgrade</button>
+        </form>
+      </div>
+    </article>
+  </main>
+
+  <footer class="container">
+    <small>
+      <b>Made by Laxilef</b>
+      • <a href="https://github.com/Laxilef/OTGateway/blob/master/LICENSE" target="_blank" class="secondary">License</a>
+      • <a href="https://github.com/Laxilef/OTGateway/blob/master/" target="_blank" class="secondary">Source code</a>
+      • <a href="https://github.com/Laxilef/OTGateway/wiki" target="_blank" class="secondary">Help</a>
+      • <a href="https://github.com/Laxilef/OTGateway/issues" target="_blank" class="secondary">Issue & questions</a>
+      • <a href="https://github.com/Laxilef/OTGateway/releases" target="_blank" class="secondary">Releases</a>
+    </small>
+  </footer>
+
+  <script src="/static/app.js"></script>
+  <script>
+    window.onload = async function () {
+      setupRestoreBackupForm('#restore');
+      setupUpgradeForm('#upgrade');
+    };
+  </script>
+</body>
+
+</html>

tools/build.py

@@ -0,0 +1,54 @@
+import shutil
+import gzip
+import os
+Import("env")
+
+
+def post_build(source, target, env):
+  copy_to_build_dir({
+    source[0].get_abspath(): "firmware_%s_%s.bin" % (env["PIOENV"], env.GetProjectOption("version")),
+    env.subst("$BUILD_DIR/${PROGNAME}.factory.bin"): "firmware_%s_%s.factory.bin" % (env["PIOENV"], env.GetProjectOption("version")),
+  }, os.path.join(env["PROJECT_DIR"], "build"));
+      
+  env.Execute("pio run --target buildfs --environment %s" % env["PIOENV"]);
+
+
+def before_buildfs(source, target, env):
+  src = os.path.join(env["PROJECT_DIR"], "src_data")
+  dst = os.path.join(env["PROJECT_DIR"], "data")
+
+  for root, dirs, files in os.walk(src, topdown=False):
+    for name in files:
+      src_path = os.path.join(root, name)
+
+      with open(src_path, 'rb') as f_in:
+          dst_name = name + ".gz"
+          dst_path = os.path.join(dst, os.path.relpath(root, src), dst_name)
+
+          with gzip.open(dst_path, 'wb', 9) as f_out:
+            shutil.copyfileobj(f_in, f_out)
+          
+          print("Compressed '%s' to '%s'" % (src_path, dst_path))
+
+def after_buildfs(source, target, env):
+  copy_to_build_dir({
+    source[0].get_abspath(): "filesystem_%s_%s.bin" % (env["PIOENV"], env.GetProjectOption("version")),
+  }, os.path.join(env["PROJECT_DIR"], "build"));
+
+
+def copy_to_build_dir(files, build_dir):
+  if os.path.exists(build_dir) == False:
+    return
+  
+  for src in files:
+    if os.path.exists(src):
+      dst = os.path.join(build_dir, files[src])
+      
+      print("Copying '%s' to '%s'" % (src, dst))
+      shutil.copy(src, dst)
+
+
+env.AddPostAction("buildprog", post_build)
+env.AddPreAction("$BUILD_DIR/spiffs.bin", before_buildfs)
+env.AddPreAction("$BUILD_DIR/littlefs.bin", before_buildfs)
+env.AddPostAction("buildfs", after_buildfs)

tools/esp32.py

@@ -0,0 +1,79 @@
+# Source: https://raw.githubusercontent.com/letscontrolit/ESPEasy/mega/tools/pio/post_esp32.py
+
+# Part of ESPEasy build toolchain.
+#
+# Combines separate bin files with their respective offsets into a single file
+# This single file must then be flashed to an ESP32 node with 0 offset.
+#
+# Original implementation: Bartłomiej Zimoń (@uzi18)
+# Maintainer: Gijs Noorlander (@TD-er)
+#
+# Special thanks to @Jason2866 (Tasmota) for helping debug flashing to >4MB flash
+# Thanks @jesserockz (esphome) for adapting to use esptool.py with merge_bin
+#
+# Typical layout of the generated file:
+#    Offset | File
+# -  0x1000 | ~\.platformio\packages\framework-arduinoespressif32\tools\sdk\esp32\bin\bootloader_dout_40m.bin
+# -  0x8000 | ~\ESPEasy\.pio\build\<env name>\partitions.bin
+# -  0xe000 | ~\.platformio\packages\framework-arduinoespressif32\tools\partitions\boot_app0.bin
+# - 0x10000 | ~\ESPEasy\.pio\build\<env name>/<built binary>.bin
+
+Import("env")
+
+platform = env.PioPlatform()
+
+import sys
+from os.path import join
+
+sys.path.append(join(platform.get_package_dir("tool-esptoolpy")))
+import esptool
+
+def esp32_create_combined_bin(source, target, env):
+    print("Generating combined binary for serial flashing")
+
+    # The offset from begin of the file where the app0 partition starts
+    # This is defined in the partition .csv file
+    app_offset = 0x10000
+
+    new_file_name = env.subst("$BUILD_DIR/${PROGNAME}.factory.bin")
+    sections = env.subst(env.get("FLASH_EXTRA_IMAGES"))
+    firmware_name = env.subst("$BUILD_DIR/${PROGNAME}.bin")
+    chip = env.get("BOARD_MCU")
+    flash_size = env.BoardConfig().get("upload.flash_size")
+    flash_freq = env.BoardConfig().get("build.f_flash", '40m')
+    flash_freq = flash_freq.replace('000000L', 'm')
+    flash_mode = env.BoardConfig().get("build.flash_mode", "dio")
+    memory_type = env.BoardConfig().get("build.arduino.memory_type", "qio_qspi")
+    if flash_mode == "qio" or flash_mode == "qout":
+        flash_mode = "dio"
+    if memory_type == "opi_opi" or memory_type == "opi_qspi":
+        flash_mode = "dout"
+    cmd = [
+        "--chip",
+        chip,
+        "merge_bin",
+        "-o",
+        new_file_name,
+        "--flash_mode",
+        flash_mode,
+        "--flash_freq",
+        flash_freq,
+        "--flash_size",
+        flash_size,
+    ]
+
+    print("    Offset | File")
+    for section in sections:
+        sect_adr, sect_file = section.split(" ", 1)
+        print(f" -  {sect_adr} | {sect_file}")
+        cmd += [sect_adr, sect_file]
+
+    print(f" - {hex(app_offset)} | {firmware_name}")
+    cmd += [hex(app_offset), firmware_name]
+
+    print('Using esptool.py arguments: %s' % ' '.join(cmd))
+
+    esptool.main(cmd)
+
+
+env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", esp32_create_combined_bin)

wokwi/nodemcu_32s/diagram.json

@@ -0,0 +1,12 @@
+{
+    "version": 1,
+    "editor": "wokwi",
+    "parts": [
+      { "type": "wokwi-esp32-devkit-v1", "id": "esp", "top": 0, "left": 0, "attrs": {} }
+    ],
+    "connections": [
+      [ "esp:TX0", "$serialMonitor:RX", "", [] ],
+      [ "esp:RX0", "$serialMonitor:TX", "", [] ]
+    ]
+  }
+  

wokwi/nodemcu_32s/wokwi.toml

@@ -0,0 +1,8 @@
+[wokwi]
+version = 1
+elf = "../../.pio/build/nodemcu_32s/firmware.elf"
+firmware = "../../.pio/build/nodemcu_32s/firmware.bin"
+
+[[net.forward]]
+from = "localhost:9080"
+to = "target:80"