refactor: migrating from Telnet to WebSerial for remote logging

refactor: improved OTA upgrade
chore: bump pioarduino/platform-espressif32 from 3.3.2 to 3.3.3
2025-12-11 18:54:28 +05:00 · 2025-11-06 13:29:59 +03:00 · 2025-11-06 13:23:19 +03:00 · 2025-11-06 13:21:34 +03:00 · 2025-11-02 11:28:46 +03:00 · 2025-10-31 21:08:35 +03:00
25 changed files with 1294 additions and 895 deletions
--- a/lib/WebServerHandlers/UpgradeHandler.h
+++ b/lib/WebServerHandlers/UpgradeHandler.h
@@ -1,6 +1,6 @@
 #include <Arduino.h>

-class UpgradeHandler : public RequestHandler {
+class UpgradeHandler : public AsyncWebHandler {
 public:
  enum class UpgradeType {
    FIRMWARE = 0,
@@ -12,7 +12,7 @@ public:
    NO_FILE,
    SUCCESS,
    PROHIBITED,
-    ABORTED,
+    SIZE_MISMATCH,
    ERROR_ON_START,
    ERROR_ON_WRITE,
    ERROR_ON_FINISH
@@ -22,27 +22,21 @@ public:
    UpgradeType type;
    UpgradeStatus status;
    String error;
+    size_t progress = 0;
+    size_t size = 0;
  } 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;
+  typedef std::function<bool(AsyncWebServerRequest *request, UpgradeType)> BeforeUpgradeCallback;
+  typedef std::function<void(AsyncWebServerRequest *request, const UpgradeResult&, const UpgradeResult&)> AfterUpgradeCallback;
  
-  UpgradeHandler(const char* uri) {
-    this->uri = uri;
-  }
+  UpgradeHandler(AsyncURIMatcher uri) : uri(uri) {}

-  UpgradeHandler* setCanHandleCallback(CanHandleCallback callback = nullptr) {
-    this->canHandleCallback = callback;
-
-    return this;
-  }
-
-  UpgradeHandler* setCanUploadCallback(CanUploadCallback callback = nullptr) {
-    this->canUploadCallback = callback;
-
-    return this;
+  bool canHandle(AsyncWebServerRequest *request) const override final {
+    if (!request->isHTTP()) {
+      return false;
+    }
+    
+    return this->uri.matches(request);
  }

  UpgradeHandler* setBeforeUpgradeCallback(BeforeUpgradeCallback callback = nullptr) {
@@ -57,29 +51,9 @@ public:
    return this;
  }

-  #if defined(ARDUINO_ARCH_ESP32)
-  bool canHandle(WebServer &server, HTTPMethod method, const String &uri) override {
-    return this->canHandle(method, uri);
-  }
-  #endif
-
-  bool canHandle(HTTPMethod method, const String& uri) override {
-    return method == HTTP_POST && uri.equals(this->uri) && (!this->canHandleCallback || this->canHandleCallback(method, uri));
-  }
-
-  #if defined(ARDUINO_ARCH_ESP32)
-  bool canUpload(WebServer &server, const String &uri) override {
-    return this->canUpload(uri);
-  }
-  #endif
-
-  bool canUpload(const String& uri) override {
-    return uri.equals(this->uri) && (!this->canUploadCallback || this->canUploadCallback(uri));
-  }
-
-  bool handle(WebServer& server, HTTPMethod method, const String& uri) override {
+  void handleRequest(AsyncWebServerRequest *request) override final {
    if (this->afterUpgradeCallback) {
-      this->afterUpgradeCallback(this->firmwareResult, this->filesystemResult);
+      this->afterUpgradeCallback(request, this->firmwareResult, this->filesystemResult);
    }

    this->firmwareResult.status = UpgradeStatus::NONE;
@@ -87,129 +61,147 @@ public:

    this->filesystemResult.status = UpgradeStatus::NONE;
    this->filesystemResult.error.clear();
-
-    return true;
  }

-  void upload(WebServer& server, const String& uri, HTTPUpload& upload) override {
-    UpgradeResult* result;
-    if (upload.name.equals(F("firmware"))) {
-      result = &this->firmwareResult;
+  void handleUpload(AsyncWebServerRequest *request, const String &fileName, size_t index, uint8_t *data, size_t dataLength, bool isFinal) override final {
+    UpgradeResult* result = nullptr;

-    } else if (upload.name.equals(F("filesystem"))) {
-      result = &this->filesystemResult;
-      
-    } else {
+    if (!request->hasParam(asyncsrv::T_name, true, true)) {
+      // Missing content-disposition 'name' parameter
      return;
    }

+    const auto& pName = request->getParam(asyncsrv::T_name, true, true)->value();
+    if (pName.equals("fw")) {
+      result = &this->firmwareResult;
+
+      if (!index) {
+        result->progress = 0;
+        result->size = request->hasParam("fw_size", true)
+          ? request->getParam("fw_size", true)->value().toInt()
+          : 0;
+      }
+
+    } else if (pName.equals("fs")) {
+      result = &this->filesystemResult;
+
+      if (!index) {
+        result->progress = 0;
+        result->size = request->hasParam("fs_size", true)
+          ? request->getParam("fs_size", true)->value().toInt()
+          : 0;
+      }
+
+    } else {
+      // Unknown parameter name
+      return;
+    }
+
+    // check result status
    if (result->status != UpgradeStatus::NONE) {
      return;
    }

-    if (this->beforeUpgradeCallback && !this->beforeUpgradeCallback(result->type)) {
+    if (this->beforeUpgradeCallback && !this->beforeUpgradeCallback(request, result->type)) {
      result->status = UpgradeStatus::PROHIBITED;
      return;
    }

-    if (!upload.filename.length()) {
+    if (!fileName.length()) {
      result->status = UpgradeStatus::NO_FILE;
      return;
    }

-    if (upload.status == UPLOAD_FILE_START) {
+    if (!index) {
      // reset
      if (Update.isRunning()) {
        Update.end(false);
        Update.clearError();
      }

+      // try begin
      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());
+        Log.serrorln(FPSTR(L_PORTAL_OTA), "File '%s', on start: %s", 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) {
+      Log.sinfoln(FPSTR(L_PORTAL_OTA), "File '%s', started", fileName.c_str());
+    }
+    
+    if (dataLength) {
+      if (Update.write(data, dataLength) != dataLength) {
        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()
+          FPSTR(L_PORTAL_OTA), "File '%s', on write %d bytes, %d of %d bytes",
+          fileName.c_str(),
+          dataLength,
+          result->progress + dataLength,
+          result->size
        );
-
-      } else {
-        Log.sinfoln(FPSTR(L_PORTAL_OTA), F("File '%s', writed %d bytes"), upload.filename.c_str(), upload.totalSize);
+        return;
      }
+      
+      result->progress += dataLength;
+      Log.sinfoln(
+        FPSTR(L_PORTAL_OTA), "File '%s', write %d bytes, %d of %d bytes",
+        fileName.c_str(),
+        dataLength,
+        result->progress,
+        result->size
+      );
+    }

-    } else if (upload.status == UPLOAD_FILE_END) {
-      if (Update.end(true)) {
-        result->status = UpgradeStatus::SUCCESS;
+    if (result->size > 0) {
+      if (result->progress > result->size || (isFinal && result->progress < result->size)) {
+        Update.end(false);
+        result->status = UpgradeStatus::SIZE_MISMATCH;

-        Log.sinfoln(FPSTR(L_PORTAL_OTA), F("File '%s': finish"), upload.filename.c_str());
-
-      } else {
+        Log.serrorln(
+          FPSTR(L_PORTAL_OTA), "File '%s', size mismatch: %d of %d bytes",
+          fileName.c_str(),
+          result->progress,
+          result->size
+        );
+        return;
+      }
+    }
+    
+    if (isFinal) {
+      if (!Update.end(true)) {
        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);
+        Log.serrorln(FPSTR(L_PORTAL_OTA), "File '%s', on finish: %s", fileName.c_str(), result->error);
+        return;
      }

-    } 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());
+      result->status = UpgradeStatus::SUCCESS;
+      Log.sinfoln(FPSTR(L_PORTAL_OTA), "File '%s': finish", fileName.c_str());
    }
  }

+  bool isRequestHandlerTrivial() const override final {
+    return false;
+  }
+
 protected:
-  CanHandleCallback canHandleCallback;
-  CanUploadCallback canUploadCallback;
  BeforeUpgradeCallback beforeUpgradeCallback;
  AfterUpgradeCallback afterUpgradeCallback;
-  const char* uri = nullptr;
+  AsyncURIMatcher uri;

  UpgradeResult firmwareResult{UpgradeType::FIRMWARE, UpgradeStatus::NONE};
  UpgradeResult filesystemResult{UpgradeType::FILESYSTEM, UpgradeStatus::NONE};
--- a/platformio.ini
+++ b/platformio.ini
@@ -17,16 +17,20 @@ core_dir = .pio
 version = 1.5.6
 framework = arduino
 lib_deps = 
+  ESP32Async/AsyncTCP
+  ;ESP32Async/ESPAsyncWebServer
+  https://github.com/ESP32Async/ESPAsyncWebServer#main
+  mathieucarbou/MycilaWebSerial@^8.2.0
 	bblanchon/ArduinoJson@^7.4.2
 	;ihormelnyk/OpenTherm Library@^1.1.5
 	https://github.com/Laxilef/opentherm_library#esp32_timer
 	arduino-libraries/ArduinoMqttClient@^0.1.8
-	lennarthennigs/ESP Telnet@^2.2.3
 	gyverlibs/FileData@^1.0.3
 	gyverlibs/GyverPID@^3.3.2
 	gyverlibs/GyverBlinker@^1.1.1
 	https://github.com/pstolarz/Arduino-Temperature-Control-Library.git#OneWireNg
-	laxilef/TinyLogger@^1.1.1
+	;laxilef/TinyLogger@^1.1.1
+  https://github.com/Laxilef/TinyLogger#custom_handlers
 build_type = ${secrets.build_type}
 build_flags = 
 	-mtext-section-literals
@@ -34,10 +38,13 @@ build_flags =
 	;-D DEBUG_ESP_CORE -D DEBUG_ESP_WIFI -D DEBUG_ESP_HTTP_SERVER -D DEBUG_ESP_PORT=Serial
 	-D BUILD_VERSION='"${this.version}"'
 	-D BUILD_ENV='"$PIOENV"'
+  -D CONFIG_ASYNC_TCP_STACK_SIZE=4096
+	-D ARDUINOJSON_USE_DOUBLE=0
+	-D ARDUINOJSON_USE_LONG_LONG=0
+  -D TINYLOGGER_GLOBAL
 	-D DEFAULT_SERIAL_ENABLED=${secrets.serial_enabled}
 	-D DEFAULT_SERIAL_BAUD=${secrets.serial_baud}
-	-D DEFAULT_TELNET_ENABLED=${secrets.telnet_enabled}
-	-D DEFAULT_TELNET_PORT=${secrets.telnet_port}
+	-D DEFAULT_WEBSERIAL_ENABLED=${secrets.webserial_enabled}
 	-D DEFAULT_LOG_LEVEL=${secrets.log_level}
 	-D DEFAULT_HOSTNAME='"${secrets.hostname}"'
 	-D DEFAULT_AP_SSID='"${secrets.ap_ssid}"'
@@ -92,13 +99,13 @@ check_flags = ${env.check_flags}
 ;platform_packages = 
 ;  framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git#3.0.5
 ;  framework-arduinoespressif32-libs @ https://github.com/espressif/esp32-arduino-lib-builder/releases/download/idf-release_v5.1/esp32-arduino-libs-idf-release_v5.1-33fbade6.zip
-platform = https://github.com/pioarduino/platform-espressif32/releases/download/55.03.31/platform-espressif32.zip
+platform = https://github.com/pioarduino/platform-espressif32/releases/download/55.03.33/platform-espressif32.zip
 platform_packages = ${env.platform_packages}
 board_build.partitions = esp32_partitions.csv
 lib_deps =
 	${env.lib_deps}
 	laxilef/ESP32Scheduler@^1.0.1
-nimble_lib = h2zero/NimBLE-Arduino@2.3.3
+nimble_lib = https://github.com/h2zero/NimBLE-Arduino
 lib_ignore = 
 extra_scripts = 
 	post:tools/esp32.py
@@ -234,7 +241,7 @@ build_flags =
 	${esp32_defaults.build_flags}
 	-D ARDUINO_USB_MODE=0
 	-D ARDUINO_USB_CDC_ON_BOOT=1
-	-D CONFIG_BT_NIMBLE_EXT_ADV=1
+	;-D CONFIG_BT_NIMBLE_EXT_ADV=1
 	-D USE_BLE=1
 	-D DEFAULT_OT_IN_GPIO=35
 	-D DEFAULT_OT_OUT_GPIO=36
--- a/secrets.default.ini
+++ b/secrets.default.ini
@@ -3,8 +3,7 @@ build_type = release

 serial_enabled = true
 serial_baud = 115200
-telnet_enabled = true
-telnet_port = 23
+webserial_enabled = true
 log_level = 5
 hostname = opentherm

--- a/src/MainTask.h
+++ b/src/MainTask.h
@@ -6,7 +6,6 @@ extern NetworkMgr* network;
 extern MqttTask* tMqtt;
 extern OpenThermTask* tOt;
 extern FileData fsNetworkSettings, fsSettings, fsSensorsSettings;
-extern ESPTelnetStream* telnetStream;


 class MainTask : public Task {
@@ -40,7 +39,6 @@ protected:
  PumpStartReason extPumpStartReason = PumpStartReason::NONE;
  unsigned long externalPumpStartTime = 0;
  bool ntpStarted = false;
-  bool telnetStarted = false;
  bool emergencyDetected = false;
  unsigned long emergencyFlipTime = 0;
  bool freezeDetected = false;
@@ -106,9 +104,9 @@ protected:
    vars.network.connected = network->isConnected();
    vars.network.rssi = network->isConnected() ? WiFi.RSSI() : 0;

-    if (settings.system.logLevel >= TinyLogger::Level::SILENT && settings.system.logLevel <= TinyLogger::Level::VERBOSE) {
+    if (settings.system.logLevel >= TinyLoggerLevel::SILENT && settings.system.logLevel <= TinyLoggerLevel::VERBOSE) {
      if (Log.getLevel() != settings.system.logLevel) {
-        Log.setLevel(static_cast<TinyLogger::Level>(settings.system.logLevel));
+        Log.setLevel(static_cast<TinyLoggerLevel>(settings.system.logLevel));
      }
    }

@@ -123,11 +121,6 @@ protected:
        }
      }

-      if (!this->telnetStarted && telnetStream != nullptr) {
-        telnetStream->begin(23, false);
-        this->telnetStarted = true;
-      }
-
      if (settings.mqtt.enabled && !tMqtt->isEnabled()) {
        tMqtt->enable();

@@ -142,11 +135,6 @@ protected:
        this->ntpStarted = false;
      }

-      if (this->telnetStarted) {
-        telnetStream->stop();
-        this->telnetStarted = false;
-      }
-
      if (tMqtt->isEnabled()) {
        tMqtt->disable();
      }
@@ -160,23 +148,10 @@ protected:
    }
    this->ledStatus();

-    // telnet
-    if (this->telnetStarted) {
-      this->yield();
-      telnetStream->loop();
-      this->yield();
-    }
-

    // anti memory leak
-    for (Stream* stream : Log.getStreams()) {
-      while (stream->available() > 0) {
-        stream->read();
-
-        #ifdef ARDUINO_ARCH_ESP8266
-        ::optimistic_yield(1000);
-        #endif
-      }
+    while (Serial.available() > 0) {
+      Serial.read();
    }

    // heap info
@@ -215,7 +190,7 @@ protected:
      vars.states.restarting = true;
    }

-    if (settings.system.logLevel < TinyLogger::Level::VERBOSE) {
+    if (settings.system.logLevel < TinyLoggerLevel::VERBOSE) {
      return;
    }

@@ -609,7 +584,12 @@ protected:
      if (GPIO_IS_VALID(settings.externalPump.gpio)) {
        configuredGpio = settings.externalPump.gpio;
        pinMode(configuredGpio, OUTPUT);
-        digitalWrite(configuredGpio, LOW);
+        digitalWrite(
+          configuredGpio,
+          settings.externalPump.invertState
+            ? HIGH 
+            : LOW
+        );

      } else if (configuredGpio != GPIO_IS_NOT_CONFIGURED) {
        configuredGpio = GPIO_IS_NOT_CONFIGURED;
@@ -637,7 +617,12 @@ protected:
    
    if (!settings.externalPump.use) {
      if (vars.externalPump.state) {
-        digitalWrite(configuredGpio, LOW);
+        digitalWrite(
+          configuredGpio,
+          settings.externalPump.invertState
+            ? HIGH 
+            : LOW
+        );

        vars.externalPump.state = false;
        vars.externalPump.lastEnabledTime = millis();
@@ -650,7 +635,12 @@ protected:

    if (vars.externalPump.state && !this->heatingEnabled) {
      if (this->extPumpStartReason == MainTask::PumpStartReason::HEATING && millis() - this->heatingDisabledTime > (settings.externalPump.postCirculationTime * 1000u)) {
-        digitalWrite(configuredGpio, LOW);
+        digitalWrite(
+          configuredGpio,
+          settings.externalPump.invertState
+            ? HIGH 
+            : LOW
+        );

        vars.externalPump.state = false;
        vars.externalPump.lastEnabledTime = millis();
@@ -658,7 +648,12 @@ protected:
        Log.sinfoln(FPSTR(L_EXTPUMP), F("Disabled: expired post circulation time"));

      } else if (this->extPumpStartReason == MainTask::PumpStartReason::ANTISTUCK && millis() - this->externalPumpStartTime >= (settings.externalPump.antiStuckTime * 1000u)) {
-        digitalWrite(configuredGpio, LOW);
+        digitalWrite(
+          configuredGpio,
+          settings.externalPump.invertState
+            ? HIGH 
+            : LOW
+        );

        vars.externalPump.state = false;
        vars.externalPump.lastEnabledTime = millis();
@@ -674,7 +669,12 @@ protected:
      this->externalPumpStartTime = millis();
      this->extPumpStartReason = MainTask::PumpStartReason::HEATING;

-      digitalWrite(configuredGpio, HIGH);
+      digitalWrite(
+        configuredGpio,
+        settings.externalPump.invertState
+          ? LOW 
+          : HIGH
+      );

      Log.sinfoln(FPSTR(L_EXTPUMP), F("Enabled: heating on"));

@@ -683,7 +683,12 @@ protected:
      this->externalPumpStartTime = millis();
      this->extPumpStartReason = MainTask::PumpStartReason::ANTISTUCK;

-      digitalWrite(configuredGpio, HIGH);
+      digitalWrite(
+        configuredGpio,
+        settings.externalPump.invertState
+          ? LOW 
+          : HIGH
+      );

      Log.sinfoln(FPSTR(L_EXTPUMP), F("Enabled: anti stuck"));
    }
--- a/src/MqttTask.h
+++ b/src/MqttTask.h
@@ -416,7 +416,7 @@ protected:
      return;
    }

-    if (settings.system.logLevel >= TinyLogger::Level::TRACE) {
+    if (settings.system.logLevel >= TinyLoggerLevel::TRACE) {
      Log.strace(FPSTR(L_MQTT_MSG), F("Topic: %s\r\n>  "), topic.c_str());
      if (Log.lock()) {
        for (size_t i = 0; i < length; i++) {
--- a/src/OpenThermTask.h
+++ b/src/OpenThermTask.h
@@ -236,7 +236,7 @@ protected:
      vars.slave.heating.active = CustomOpenTherm::isCentralHeatingActive(response);
      vars.slave.dhw.active = settings.opentherm.options.dhwSupport ? CustomOpenTherm::isHotWaterActive(response) : false;
      vars.slave.flame = CustomOpenTherm::isFlameOn(response);
-      vars.slave.cooling = CustomOpenTherm::isCoolingActive(response);
+      vars.slave.cooling.active = CustomOpenTherm::isCoolingActive(response);
      vars.slave.ch2.active = CustomOpenTherm::isCh2Active(response);
      vars.slave.fault.active = CustomOpenTherm::isFault(response);

@@ -250,7 +250,7 @@ protected:
      Log.snoticeln(
        FPSTR(L_OT), F("Received boiler status. Heating: %hhu; DHW: %hhu; flame: %hhu; cooling: %hhu; channel 2: %hhu; fault: %hhu; diag: %hhu"),
        vars.slave.heating.active, vars.slave.dhw.active,
-        vars.slave.flame, vars.slave.cooling, vars.slave.ch2.active, vars.slave.fault.active, vars.slave.diag.active
+        vars.slave.flame, vars.slave.cooling.active, vars.slave.ch2.active, vars.slave.fault.active, vars.slave.diag.active
      );
    }

@@ -318,6 +318,8 @@ protected:
      vars.slave.dhw.enabled = false;
      vars.slave.dhw.active = false;
      vars.slave.flame = false;
+      vars.slave.cooling.active = false;
+      vars.slave.cooling.setpoint = 0;
      vars.slave.fault.active = false;
      vars.slave.fault.code = 0;
      vars.slave.diag.active = false;
@@ -688,6 +690,22 @@ protected:
      this->prevUpdateNonEssentialVars = millis();
    }

+    // Set cooling setpoint = heating max modulation
+    if (settings.opentherm.options.coolingSupport) {
+      if (this->setCoolingSetpoint(settings.heating.maxModulation)) {
+        Log.snoticeln(
+          FPSTR(L_OT), F("Set cooling setpoint: %hhu%% (response: %hhu%%)"),
+          settings.heating.maxModulation, vars.slave.cooling.setpoint
+        );
+
+      } else {
+        Log.swarningln(
+          FPSTR(L_OT), F("Failed set cooling setpoint: %hhu%% (response: %hhu%%)"),
+          settings.heating.maxModulation, vars.slave.cooling.setpoint
+        );
+      }
+    }
+
    // Set max modulation level
    uint8_t targetMaxModulation = vars.slave.modulation.max;
    if (vars.slave.heating.active) {
@@ -1568,6 +1586,26 @@ protected:
    return CustomOpenTherm::getUInt(response) == request;
  }

+  bool setCoolingSetpoint(const uint8_t value) {
+    const unsigned int request = CustomOpenTherm::toFloat(value);
+    const unsigned long response = this->instance->sendRequest(CustomOpenTherm::buildRequest(
+      OpenThermRequestType::WRITE_DATA,
+      OpenThermMessageID::CoolingControl,
+      request
+    ));
+
+    if (!CustomOpenTherm::isValidResponse(response)) {
+      return false;
+
+    } else if (!CustomOpenTherm::isValidResponseId(response, OpenThermMessageID::CoolingControl)) {
+      return false;
+    }
+
+    vars.slave.cooling.setpoint = CustomOpenTherm::getFloat(response);
+
+    return CustomOpenTherm::getUInt(response) == request;
+  }
+
  bool setMaxModulationLevel(const uint8_t value) {
    const unsigned int request = CustomOpenTherm::toFloat(value);
    const unsigned long response = this->instance->sendRequest(CustomOpenTherm::buildRequest(
--- a/src/PortalTask.h
+++ b/src/PortalTask.h
--- a/src/SensorsTask.h
+++ b/src/SensorsTask.h
@@ -8,6 +8,45 @@

 extern FileData fsSensorsSettings;

+#if USE_BLE
+class BluetoothClientCallbacks : public NimBLEClientCallbacks {
+public:
+  BluetoothClientCallbacks(uint8_t sensorId) : sensorId(sensorId) {}
+
+  void onConnect(NimBLEClient* pClient) {
+    auto& sSensor = Sensors::settings[this->sensorId];
+
+    Log.sinfoln(
+      FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': connected to %s"),
+      sensorId, sSensor.name, pClient->getPeerAddress().toString().c_str()
+    );
+  }
+
+  void onDisconnect(NimBLEClient* pClient, int reason) {
+    auto& sSensor = Sensors::settings[this->sensorId];
+
+    Log.sinfoln(
+      FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': disconnected, reason %i"),
+      sensorId, sSensor.name, reason
+    );
+  }
+
+  void onConnectFail(NimBLEClient* pClient, int reason) {
+    auto& sSensor = Sensors::settings[this->sensorId];
+
+    Log.sinfoln(
+      FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed to connect, reason %i"),
+      sensorId, sSensor.name, reason
+    );
+
+    pClient->cancelConnect();
+  }
+
+protected:
+  uint8_t sensorId;
+};
+#endif
+
 class SensorsTask : public LeanTask {
 public:
  SensorsTask(bool _enabled = false, unsigned long _interval = 0) : LeanTask(_enabled, _interval) {
@@ -41,6 +80,7 @@ protected:
  std::unordered_map<uint8_t, bool> dallasPolling;
  std::unordered_map<uint8_t, unsigned long> dallasLastPollingTime;
  #if USE_BLE
+  std::unordered_map<uint8_t, NimBLEClient*> bleClients;
  std::unordered_map<uint8_t, bool> bleSubscribed;
  std::unordered_map<uint8_t, unsigned long> bleLastSetDtTime;
  #endif
@@ -409,36 +449,22 @@ protected:
      return;
    }

-    for (auto client : NimBLEDevice::getConnectedClients()) {
-      auto address = client->getPeerAddress();
-      bool used = false;
-
-      for (uint8_t sensorId = 0; sensorId <= Sensors::getMaxSensorId(); sensorId++) {
-        auto& sSensor = Sensors::settings[sensorId];
-        
-        if (!sSensor.enabled || sSensor.type != Sensors::Type::BLUETOOTH || sSensor.purpose == Sensors::Purpose::NOT_CONFIGURED) {
-          continue;
-        }
-        
-        auto pAddress = address.getVal();
-        uint8_t addr[] = {
-          pAddress[5], pAddress[4], pAddress[3],
-          pAddress[2], pAddress[1], pAddress[0]
-        };
-
-        if (isEqualAddress(addr, sSensor.address, sizeof(addr))) {
-          used = true;
-          break;
-        }
+    for (auto& [sensorId, pClient]: this->bleClients) {
+      if (pClient == nullptr) {
+        continue;
      }

-      if (!used) {
+      auto& sSensor = Sensors::settings[sensorId];
+      const auto sAddress = NimBLEAddress(sSensor.address, 0);
+
+      if (sAddress.isNull() || !sSensor.enabled || sSensor.type != Sensors::Type::BLUETOOTH || sSensor.purpose == Sensors::Purpose::NOT_CONFIGURED) {
        Log.sinfoln(
-          FPSTR(L_SENSORS_BLE), F("Deleted unused client connected to %s"),
-          address.toString().c_str()
+          FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s', deleted unused client"),
+          sensorId, sSensor.name
        );

-        NimBLEDevice::deleteClient(client);
+        NimBLEDevice::deleteClient(pClient);
+        pClient = nullptr;
      }
    }
  }
@@ -462,38 +488,47 @@ protected:
        continue;
      }

-      auto client = this->getBleClient(sensorId);
-      if (client == nullptr) {
+      const auto address = NimBLEAddress(sSensor.address, 0);
+      if (address.isNull()) {
        continue;
      }

-      if (!client->isConnected()) {
+      auto pClient = this->getBleClient(sensorId);
+      if (pClient == nullptr) {
+        continue;
+      }
+
+      if (pClient->getPeerAddress() != address) {
+        if (pClient->isConnected()) {
+          if (!pClient->disconnect()) {
+            continue;
+          }
+        }
+
+        pClient->setPeerAddress(address);
+      }
+
+      if (!pClient->isConnected()) {
        this->bleSubscribed[sensorId] = false;
        this->bleLastSetDtTime[sensorId] = 0;

-        if (client->connect()) {
+        if (pClient->connect(false, true, true)) {
          Log.sinfoln(
-            FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': connected to %s"),
-            sensorId, sSensor.name, client->getPeerAddress().toString().c_str()
+            FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': trying connecting to %s..."),
+            sensorId, sSensor.name, pClient->getPeerAddress().toString().c_str()
          );
-
-        } else {
-          Log.swarningln(
-            FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s': failed connecting to %s"),
-            sensorId, sSensor.name, client->getPeerAddress().toString().c_str()
-          );
-
-          continue;
        }
+
+        continue;
      }
      
      if (!this->bleSubscribed[sensorId]) {
-        if (this->subscribeToBleDevice(sensorId, client)) {
+        if (this->subscribeToBleDevice(sensorId, pClient)) {
          this->bleSubscribed[sensorId] = true;

        } else {
          this->bleSubscribed[sensorId] = false;
-          client->disconnect();
+          pClient->disconnect();
          continue;
        }
      }
@@ -505,7 +540,7 @@ protected:
        struct tm ti;
        
        if (getLocalTime(&ti)) {
-          if (this->setDateOnBleSensor(client, &ti)) {
+          if (this->setDateOnBleSensor(pClient, &ti)) {
            Log.sinfoln(
              FPSTR(L_SENSORS_BLE), F("Sensor #%hhu '%s', successfully set date: %02d.%02d.%04d %02d:%02d:%02d"),
              sensorId, sSensor.name,
@@ -537,42 +572,22 @@ protected:
    if (!sSensor.enabled || sSensor.type != Sensors::Type::BLUETOOTH || sSensor.purpose == Sensors::Purpose::NOT_CONFIGURED) {
      return nullptr;
    }
-    
-    uint8_t addr[6] = {
-      sSensor.address[0], sSensor.address[1], sSensor.address[2],
-      sSensor.address[3], sSensor.address[4], sSensor.address[5]
-    };
-    const auto address = NimBLEAddress(addr, 0);
-    
-    NimBLEClient* pClient = NimBLEDevice::getClientByPeerAddress(address);
+
+    if (this->bleClients[sensorId] && this->bleClients[sensorId] != nullptr) {
+      return this->bleClients[sensorId];
+    }
+
+    auto pClient = NimBLEDevice::createClient();
    if (pClient == nullptr) {
-      pClient = NimBLEDevice::getDisconnectedClient();
+      return nullptr;
    }

-    if (pClient == nullptr) {
-      if (NimBLEDevice::getCreatedClientCount() >= NIMBLE_MAX_CONNECTIONS) {
-        return nullptr;
-      }
+    //pClient->setConnectionParams(BLE_GAP_CONN_ITVL_MS(10), BLE_GAP_CONN_ITVL_MS(100), 10, 150);
+    pClient->setConnectTimeout(30000);
+    pClient->setSelfDelete(false, false);
+    pClient->setClientCallbacks(new BluetoothClientCallbacks(sensorId), true);

-      pClient = NimBLEDevice::createClient();
-      if (pClient == nullptr) {
-        return nullptr;
-      }
-
-      /**
-       *  Set initial connection parameters:
-       *  These settings are safe for 3 clients to connect reliably, can go faster if you have less
-       *  connections. Timeout should be a multiple of the interval, minimum is 100ms.
-       *  Min interval: 12 * 1.25ms = 15, Max interval: 12 * 1.25ms = 15, 0 latency, 1000 * 10ms = 10000ms timeout
-       */
-      pClient->setConnectionParams(12, 12, 0, 1000);
-      pClient->setConnectTimeout(5000);
-      pClient->setSelfDelete(false, true);
-    }
-
-    if (!pClient->isConnected()) {
-      pClient->setPeerAddress(address);
-    }
+    this->bleClients[sensorId] = pClient;

    return pClient;
  }
--- a/src/Settings.h
+++ b/src/Settings.h
@@ -32,9 +32,8 @@ struct Settings {
    } serial;

    struct {
-      bool enabled = DEFAULT_TELNET_ENABLED;
-      unsigned short port = DEFAULT_TELNET_PORT;
-    } telnet;
+      bool enabled = DEFAULT_WEBSERIAL_ENABLED;
+    } webSerial;

    struct {
      char server[49] = "pool.ntp.org";
@@ -162,6 +161,7 @@ struct Settings {
  struct {
    bool use = false;
    uint8_t gpio = DEFAULT_EXT_PUMP_GPIO;
+    bool invertState = false;
    unsigned short postCirculationTime = 600;
    unsigned int antiStuckInterval = 2592000;
    unsigned short antiStuckTime = 300;
@@ -329,10 +329,14 @@ struct Variables {

    bool connected = false;
    bool flame = false;
-    bool cooling = false;
    float pressure = 0.0f;
    float heatExchangerTemp = 0.0f;

+    struct {
+      bool active = false;
+      uint8_t setpoint = 0;
+    } cooling;
+
    struct {
      bool active = false;
      uint8_t code = 0;
--- a/src/defines.h
+++ b/src/defines.h
@@ -42,12 +42,8 @@
  #define DEFAULT_SERIAL_BAUD 115200
 #endif

-#ifndef DEFAULT_TELNET_ENABLED
-  #define DEFAULT_TELNET_ENABLED true
-#endif
-
-#ifndef DEFAULT_TELNET_PORT
-  #define DEFAULT_TELNET_PORT 23
+#ifndef DEFAULT_WEBSERIAL_ENABLED
+  #define DEFAULT_WEBSERIAL_ENABLED true
 #endif

 #ifndef USE_BLE
@@ -75,7 +71,7 @@
 #endif

 #ifndef DEFAULT_LOG_LEVEL
-  #define DEFAULT_LOG_LEVEL TinyLogger::Level::VERBOSE
+  #define DEFAULT_LOG_LEVEL TinyLoggerLevel::VERBOSE
 #endif

 #ifndef DEFAULT_STATUS_LED_GPIO
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,11 +1,8 @@
-#define ARDUINOJSON_USE_DOUBLE 0
-#define ARDUINOJSON_USE_LONG_LONG 0
-
 #include <Arduino.h>
 #include <ArduinoJson.h>
 #include <FileData.h>
 #include <LittleFS.h>
-#include <ESPTelnetStream.h>
+#include <MycilaWebSerial.h>

 #include "defines.h"
 #include "strings.h"
@@ -37,7 +34,7 @@
 using namespace NetworkUtils;

 // Vars
-ESPTelnetStream* telnetStream = nullptr;
+WebSerial* webSerial = nullptr;
 NetworkMgr* network = nullptr;
 Sensors::Result sensorsResults[SENSORS_AMOUNT];

@@ -61,7 +58,7 @@ void setup() {
  Sensors::results = sensorsResults;
  LittleFS.begin();

-  Log.setLevel(TinyLogger::Level::VERBOSE);
+  Log.setLevel(TinyLoggerLevel::VERBOSE);
  Log.setServiceTemplate("\033[1m[%s]\033[22m");
  Log.setLevelTemplate("\033[1m[%s]\033[22m");
  Log.setMsgPrefix("\033[m ");
@@ -79,7 +76,7 @@ void setup() {
  #if ARDUINO_USB_MODE
  Serial.setTxBufferSize(512);
  #endif
-  Log.addStream(&Serial);
+  Log.addHandler(&Serial);
  Log.print("\n\n\r");

  //
@@ -163,24 +160,24 @@ void setup() {
  // Logs settings
  if (!settings.system.serial.enabled) {
    Serial.end();
-    Log.clearStreams();
+    Log.clearHandlers();

  } else if (settings.system.serial.baudrate != 115200) {
    Serial.end();
-    Log.clearStreams();
+    Log.clearHandlers();

    Serial.begin(settings.system.serial.baudrate);
-    Log.addStream(&Serial);
+    Log.addHandler(&Serial);
  }

-  if (settings.system.telnet.enabled) {
-    telnetStream = new ESPTelnetStream;
-    telnetStream->setKeepAliveInterval(500);
-    Log.addStream(telnetStream);
+  if (settings.system.webSerial.enabled) {
+    webSerial = new WebSerial();
+    webSerial->setBuffer(100);
+    Log.addHandler(webSerial);
  }

-  if (settings.system.logLevel >= TinyLogger::Level::SILENT && settings.system.logLevel <= TinyLogger::Level::VERBOSE) {
-    Log.setLevel(static_cast<TinyLogger::Level>(settings.system.logLevel));
+  if (settings.system.logLevel >= TinyLoggerLevel::SILENT && settings.system.logLevel <= TinyLoggerLevel::VERBOSE) {
+    Log.setLevel(static_cast<TinyLoggerLevel>(settings.system.logLevel));
  }

  //
@@ -216,7 +213,7 @@ void setup() {
  tRegulator = new RegulatorTask(true, 10000);
  Scheduler.start(tRegulator);

-  tPortal = new PortalTask(true, 0);
+  tPortal = new PortalTask(true, 10);
  Scheduler.start(tPortal);

  tMain = new MainTask(true, 100);
--- a/src/strings.h
+++ b/src/strings.h
@@ -164,6 +164,7 @@ const char S_POWER[]                                PROGMEM = "power";
 const char S_PREFIX[]                               PROGMEM = "prefix";
 const char S_PROTOCOL_VERSION[]                     PROGMEM = "protocolVersion";
 const char S_PURPOSE[]                              PROGMEM = "purpose";
+const char S_PSRAM[]                                PROGMEM = "psram";
 const char S_P_FACTOR[]                             PROGMEM = "p_factor";
 const char S_P_MULTIPLIER[]                         PROGMEM = "p_multiplier";
 const char S_REAL_SIZE[]                            PROGMEM = "realSize";
@@ -190,13 +191,13 @@ const char S_STA[]                                  PROGMEM = "sta";
 const char S_STATE[]                                PROGMEM = "state";
 const char S_STATIC_CONFIG[]                        PROGMEM = "staticConfig";
 const char S_STATUS_LED_GPIO[]                      PROGMEM = "statusLedGpio";
+const char S_SETPOINT[]                             PROGMEM = "setpoint";
 const char S_SETPOINT_TEMP[]                        PROGMEM = "setpointTemp";
 const char S_SUBNET[]                               PROGMEM = "subnet";
 const char S_SUMMER_WINTER_MODE[]                   PROGMEM = "summerWinterMode";
 const char S_SYSTEM[]                               PROGMEM = "system";
 const char S_TARGET[]                               PROGMEM = "target";
 const char S_TARGET_TEMP[]                          PROGMEM = "targetTemp";
-const char S_TELNET[]                               PROGMEM = "telnet";
 const char S_TEMPERATURE[]                          PROGMEM = "temperature";
 const char S_THRESHOLD_HIGH[]                       PROGMEM = "thresholdHigh";
 const char S_THRESHOLD_LOW[]                        PROGMEM = "thresholdLow";
@@ -215,3 +216,4 @@ const char S_USE_DHCP[]                             PROGMEM = "useDhcp";
 const char S_USER[]                                 PROGMEM = "user";
 const char S_VALUE[]                                PROGMEM = "value";
 const char S_VERSION[]                              PROGMEM = "version";
+const char S_WEBSERIAL[]                            PROGMEM = "webSerial";
--- a/src/utils.h
+++ b/src/utils.h
@@ -425,9 +425,8 @@ void settingsToJson(const Settings& src, JsonVariant dst, bool safe = false) {
    serial[FPSTR(S_ENABLED)] = src.system.serial.enabled;
    serial[FPSTR(S_BAUDRATE)] = src.system.serial.baudrate;

-    auto telnet = system[FPSTR(S_TELNET)].to<JsonObject>();
-    telnet[FPSTR(S_ENABLED)] = src.system.telnet.enabled;
-    telnet[FPSTR(S_PORT)] = src.system.telnet.port;
+    auto webSerial = system[FPSTR(S_WEBSERIAL)].to<JsonObject>();
+    webSerial[FPSTR(S_ENABLED)] = src.system.webSerial.enabled;

    auto ntp = system[FPSTR(S_NTP)].to<JsonObject>();
    ntp[FPSTR(S_SERVER)] = src.system.ntp.server;
@@ -542,6 +541,7 @@ void settingsToJson(const Settings& src, JsonVariant dst, bool safe = false) {
    auto externalPump = dst[FPSTR(S_EXTERNAL_PUMP)].to<JsonObject>();
    externalPump[FPSTR(S_USE)] = src.externalPump.use;
    externalPump[FPSTR(S_GPIO)] = src.externalPump.gpio;
+    externalPump[FPSTR(S_INVERT_STATE)] = src.externalPump.invertState;
    externalPump[FPSTR(S_POST_CIRCULATION_TIME)] = roundf(src.externalPump.postCirculationTime / 60, 0);
    externalPump[FPSTR(S_ANTI_STUCK_INTERVAL)] = roundf(src.externalPump.antiStuckInterval / 86400, 0);
    externalPump[FPSTR(S_ANTI_STUCK_TIME)] = roundf(src.externalPump.antiStuckTime / 60, 0);
@@ -575,7 +575,7 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
    if (!src[FPSTR(S_SYSTEM)][FPSTR(S_LOG_LEVEL)].isNull()) {
      uint8_t value = src[FPSTR(S_SYSTEM)][FPSTR(S_LOG_LEVEL)].as<uint8_t>();

-      if (value != dst.system.logLevel && value >= TinyLogger::Level::SILENT && value <= TinyLogger::Level::VERBOSE) {
+      if (value != dst.system.logLevel && value >= TinyLoggerLevel::SILENT && value <= TinyLoggerLevel::VERBOSE) {
        dst.system.logLevel = value;
        changed = true;
      }
@@ -601,20 +601,11 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
      }
    }

-    if (src[FPSTR(S_SYSTEM)][FPSTR(S_TELNET)][FPSTR(S_ENABLED)].is<bool>()) {
-      bool value = src[FPSTR(S_SYSTEM)][FPSTR(S_TELNET)][FPSTR(S_ENABLED)].as<bool>();
+    if (src[FPSTR(S_SYSTEM)][FPSTR(S_WEBSERIAL)][FPSTR(S_ENABLED)].is<bool>()) {
+      bool value = src[FPSTR(S_SYSTEM)][FPSTR(S_WEBSERIAL)][FPSTR(S_ENABLED)].as<bool>();

-      if (value != dst.system.telnet.enabled) {
-        dst.system.telnet.enabled = value;
-        changed = true;
-      }
-    }
-
-    if (!src[FPSTR(S_SYSTEM)][FPSTR(S_TELNET)][FPSTR(S_PORT)].isNull()) {
-      unsigned short value = src[FPSTR(S_SYSTEM)][FPSTR(S_TELNET)][FPSTR(S_PORT)].as<unsigned short>();
-
-      if (value > 0 && value <= 65535 && value != dst.system.telnet.port) {
-        dst.system.telnet.port = value;
+      if (value != dst.system.webSerial.enabled) {
+        dst.system.webSerial.enabled = value;
        changed = true;
      }
    }
@@ -1492,6 +1483,15 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
      }
    }

+    if (src[FPSTR(S_EXTERNAL_PUMP)][FPSTR(S_INVERT_STATE)].is<bool>()) {
+      bool value = src[FPSTR(S_EXTERNAL_PUMP)][FPSTR(S_INVERT_STATE)].as<bool>();
+
+      if (value != dst.externalPump.invertState) {
+        dst.externalPump.invertState = value;
+        changed = true;
+      }
+    }
+
    if (!src[FPSTR(S_EXTERNAL_PUMP)][FPSTR(S_POST_CIRCULATION_TIME)].isNull()) {
      unsigned short value = src[FPSTR(S_EXTERNAL_PUMP)][FPSTR(S_POST_CIRCULATION_TIME)].as<unsigned short>();

@@ -1930,12 +1930,20 @@ bool jsonToSensorSettings(const uint8_t sensorId, const JsonVariantConst src, Se
      );

      if (parsed == 8) {
-        for (uint8_t i = 0; i < 8; i++) {
+        for (uint8_t i = 0; i < parsed; i++) {
          if (dst.address[i] != tmp[i]) {
            dst.address[i] = tmp[i];
            changed = true;
          }
        }
+
+      } else {
+        // reset
+        for (uint8_t i = 0; i < sizeof(dst.address); i++) {
+          dst.address[i] = 0x00;
+        }
+
+        changed = true;
      }

    } else if (dst.type == Sensors::Type::BLUETOOTH) {
@@ -1948,12 +1956,20 @@ bool jsonToSensorSettings(const uint8_t sensorId, const JsonVariantConst src, Se
      );

      if (parsed == 6) {
-        for (uint8_t i = 0; i < 6; i++) {
+        for (uint8_t i = 0; i < parsed; i++) {
          if (dst.address[i] != tmp[i]) {
            dst.address[i] = tmp[i];
            changed = true;
          }
        }
+
+      } else {
+        // reset
+        for (uint8_t i = 0; i < sizeof(dst.address); i++) {
+          dst.address[i] = 0x00;
+        }
+        
+        changed = true;
      }
    }
  }
@@ -2060,7 +2076,10 @@ void varsToJson(const Variables& src, JsonVariant dst) {
  slave[FPSTR(S_PROTOCOL_VERSION)] = src.slave.appVersion;
  slave[FPSTR(S_CONNECTED)] = src.slave.connected;
  slave[FPSTR(S_FLAME)] = src.slave.flame;
-  slave[FPSTR(S_COOLING)] = src.slave.cooling;
+
+  auto sCooling = slave[FPSTR(S_COOLING)].to<JsonObject>();
+  sCooling[FPSTR(S_ACTIVE)] = src.slave.cooling.active;
+  sCooling[FPSTR(S_SETPOINT)] = src.slave.cooling.setpoint;

  auto sModulation = slave[FPSTR(S_MODULATION)].to<JsonObject>();
  sModulation[FPSTR(S_MIN)] = src.slave.modulation.min;
--- a/src_data/locales/cn.json
+++ b/src_data/locales/cn.json
@@ -109,7 +109,8 @@

        "sConnected": "OpenTherm 通讯状态",
        "sFlame": "火焰",
-        "sCooling": "制冷",
+        "sCoolingActive": "制冷",
+        "sCoolingSetpoint": "冷却设定点",
        "sFaultActive": "报警状态",
        "sFaultCode": "报警代码",
        "sDiagActive": "诊断状态",
@@ -340,12 +341,8 @@
          "enable": "启用串口",
          "baud": "串口波特率"
        },
-        "telnet": {
-          "enable": "启用 Telnet",
-          "port": {
-            "title": "Telnet 端口",
-            "note": "默认值：23"
-          }
+        "webSerial": {
+          "enable": "启用 WebSerial"
        },
        "ntp": {
          "server": "NTP服务器",
@@ -454,6 +451,7 @@
      "extPump": {
        "use": "使用外置循环泵",
        "gpio": "继电器 GPIO引脚",
+        "invertState": "切换 GPIO 状态",
        "postCirculationTime": "后循环时间 <small>(分钟)</small>",
        "antiStuckInterval": "防卡死间隔时间<small>(天)</small>",
        "antiStuckTime": "防卡死运行时长<small>(分钟)</small>"
--- a/src_data/locales/en.json
+++ b/src_data/locales/en.json
@@ -109,7 +109,8 @@

        "sConnected": "OpenTherm connection",
        "sFlame": "Flame",
-        "sCooling": "Cooling",
+        "sCoolingActive": "Cooling",
+        "sCoolingSetpoint": "Cooling setpoint",
        "sFaultActive": "Fault",
        "sFaultCode": "Fault code",
        "sDiagActive": "Diagnostic",
@@ -340,12 +341,8 @@
          "enable": "Enabled Serial port",
          "baud": "Serial port baud rate"
        },
-        "telnet": {
-          "enable": "Enabled Telnet",
-          "port": {
-            "title": "Telnet port",
-            "note": "Default: 23"
-          }
+        "webSerial": {
+          "enable": "Enabled WebSerial"
        },
        "ntp": {
          "server": "NTP server",
@@ -454,6 +451,7 @@
      "extPump": {
        "use": "Use external pump",
        "gpio": "Relay GPIO",
+        "invertState": "Invert GPIO state",
        "postCirculationTime": "Post circulation time <small>(min)</small>",
        "antiStuckInterval": "Anti stuck interval <small>(days)</small>",
        "antiStuckTime": "Anti stuck time <small>(min)</small>"
--- a/src_data/locales/it.json
+++ b/src_data/locales/it.json
@@ -109,7 +109,8 @@

        "sConnected": "Connessione OpenTherm",
        "sFlame": "Fiamma",
-        "sCooling": "Raffrescamento",
+        "sCoolingActive": "Raffrescamento",
+        "sCoolingSetpoint": "Raffrescamento setpoint",
        "sFaultActive": "Anomalia",
        "sFaultCode": "Codice anomalia",
        "sDiagActive": "Diagnostica",
@@ -340,12 +341,8 @@
          "enable": "Porta seriale attivata",
          "baud": "Porta seriale baud rate"
        },
-        "telnet": {
-          "enable": "Telnet attivato",
-          "port": {
-            "title": "Porta Telnet",
-            "note": "Default: 23"
-          }
+        "webSerial": {
+          "enable": "WebSerial attivato"
        },
        "ntp": {
          "server": "NTP server",
@@ -454,6 +451,7 @@
      "extPump": {
        "use": "Usa pompa/circolatore esterno",
        "gpio": "GPIO relè",
+        "invertState": "Inverti stato GPIO",
        "postCirculationTime": "Tempo di post circolazione <small>(min)</small>",
        "antiStuckInterval": "Intervallo antiblocco <small>(days)</small>",
        "antiStuckTime": "Tempo antiblocco <small>(min)</small>"
--- a/src_data/locales/nl.json
+++ b/src_data/locales/nl.json
@@ -0,0 +1,462 @@
+{
+  "values": {
+    "logo": "OpenTherm Gateway",
+    "nav": {
+      "license": "Licentie",
+      "source": "Broncode",
+      "help": "Help",
+      "issues": "Problemen & vragen",
+      "releases": "Releases"
+    },
+    "dbm": "dBm",
+    "kw": "kW",
+    "time": {
+      "days": "d.",
+      "hours": "u.",
+      "min": "min.",
+      "sec": "sec."
+    },
+    "button": {
+      "upgrade": "Upgraden",
+      "restart": "Herstarten",
+      "save": "Opslaan",
+      "saved": "Opgeslagen",
+      "refresh": "Vernieuwen",
+      "restore": "Herstellen",
+      "restored": "Hersteld",
+      "backup": "Back-up",
+      "wait": "Even wachten...",
+      "uploading": "Uploaden...",
+      "success": "Succes",
+      "error": "Fout"
+    },
+    "index": {
+      "title": "OpenTherm Gateway",
+      "section": {
+        "network": "Netwerk",
+        "system": "Systeem"
+      },
+      "system": {
+        "build": {
+          "title": "Build",
+          "version": "Versie",
+          "date": "Datum",
+          "core": "Core",
+          "sdk": "SDK"
+        },
+        "uptime": "Uptime",
+        "memory": {
+          "title": "Vrij geheugen",
+          "maxFreeBlock": "max. vrij blok",
+          "min": "min"
+        },
+        "board": "Board",
+        "chip": {
+          "model": "Chip",
+          "cores": "Kernen",
+          "freq": "frequentie"
+        },
+        "flash": {
+          "size": "Flash-grootte",
+          "realSize": "werkelijke grootte"
+        },
+        "lastResetReason": "Reden laatste herstart"
+      }
+    },
+    "dashboard": {
+      "name": "Dashboard",
+      "title": "Dashboard - OpenTherm Gateway",
+      "section": {
+        "control": "Bediening",
+        "states": "Statussen",
+        "sensors": "Sensoren",
+        "diag": "OpenTherm diagnose"
+      },
+      "thermostat": {
+        "heating": "Verwarming",
+        "dhw": "Warm water",
+        "temp.current": "Huidig",
+        "enable": "Inschakelen",
+        "turbo": "Turbomodus"
+      },
+      "notify": {
+        "fault": {
+          "title": "Ketelstoring is actief!",
+          "note": "Het wordt aanbevolen de ketel te inspecteren en de documentatie te raadplegen om de storingscode te interpreteren:"
+        },
+        "diag": {
+          "title": "Keteldiagnose is actief!",
+          "note": "Heeft uw ketel misschien een inspectie nodig? Het wordt aanbevolen de documentatie te raadplegen om de diagnosecode te interpreteren:"
+        },
+        "reset": "Probeer te resetten"
+      },
+      "states": {
+        "mNetworkConnected": "Netwerkverbinding",
+        "mMqttConnected": "MQTT-verbinding",
+        "mEmergencyState": "Noodmodus",
+        "mExtPumpState": "Externe pomp",
+        "mCascadeControlInput": "Cascaderegeling (ingang)",
+        "mCascadeControlOutput": "Cascaderegeling (uitgang)",
+        "sConnected": "OpenTherm-verbinding",
+        "sFlame": "Vlam",
+        "sCoolingActive": "Koeling",
+        "sCoolingSetpoint": "Koelinstelpunt",
+        "sFaultActive": "Storing",
+        "sFaultCode": "Storingscode",
+        "sDiagActive": "Diagnose",
+        "sDiagCode": "Diagnosecode",
+        "mHeatEnabled": "Verwarming ingeschakeld",
+        "mHeatBlocking": "Verwarming geblokkeerd",
+        "mHeatOverheat": "Verwarming oververhit",
+        "sHeatActive": "Verwarming actief",
+        "mHeatSetpointTemp": "Insteltemperatuur verwarming",
+        "mHeatTargetTemp": "Doeltemperatuur verwarming",
+        "mHeatCurrTemp": "Huidige temperatuur verwarming",
+        "mHeatRetTemp": "Retourtemperatuur verwarming",
+        "mHeatIndoorTemp": "Verwarming, binnentemperatuur",
+        "mHeatOutdoorTemp": "Verwarming, buitentemperatuur",
+        "mDhwEnabled": "Warm water ingeschakeld",
+        "mDhwOverheat": "Warm water oververhit",
+        "sDhwActive": "Warm water actief",
+        "mDhwTargetTemp": "Doeltemperatuur warm water",
+        "mDhwCurrTemp": "Huidige temperatuur warm water",
+        "mDhwRetTemp": "Retourtemperatuur warm water"
+      },
+      "sensors": {
+        "values": {
+          "temp": "Temperatuur",
+          "humidity": "Luchtvochtigheid",
+          "battery": "Batterij",
+          "rssi": "RSSI"
+        }
+      }
+    },
+    "network": {
+      "title": "Netwerk - OpenTherm Gateway",
+      "name": "Netwerkinstellingen",
+      "section": {
+        "static": "Statische instellingen",
+        "availableNetworks": "Beschikbare netwerken",
+        "staSettings": "WiFi-instellingen",
+        "apSettings": "AP-instellingen"
+      },
+      "scan": {
+        "pos": "#",
+        "info": "Info"
+      },
+      "wifi": {
+        "ssid": "SSID",
+        "password": "Wachtwoord",
+        "channel": "Kanaal",
+        "signal": "Signaal",
+        "connected": "Verbonden"
+      },
+      "params": {
+        "hostname": "Hostnaam",
+        "dhcp": "Gebruik DHCP",
+        "mac": "MAC",
+        "ip": "IP",
+        "subnet": "Subnet",
+        "gateway": "Gateway",
+        "dns": "DNS"
+      },
+      "sta": {
+        "channel.note": "zet op 0 voor automatische selectie"
+      }
+    },
+    "sensors": {
+      "title": "Sensorinstellingen - OpenTherm Gateway",
+      "name": "Sensorinstellingen",
+      "enabled": "Ingeschakeld",
+      "sensorName": {
+        "title": "Sensornaam",
+        "note": "Mag alleen bevatten: a-z, A-Z, 0-9, _ en spatie"
+      },
+      "purpose": "Doel",
+      "purposes": {
+        "outdoorTemp": "Buitentemperatuur",
+        "indoorTemp": "Binnentemperatuur",
+        "heatTemp": "Verwarming, temperatuur",
+        "heatRetTemp": "Verwarming, retourtemperatuur",
+        "dhwTemp": "Warm water, temperatuur",
+        "dhwRetTemp": "Warm water, retourtemperatuur",
+        "dhwFlowRate": "Warm water, doorstroomsnelheid",
+        "exhaustTemp": "Rookgastemperatuur",
+        "modLevel": "Modulatieniveau (in procenten)",
+        "number": "Getal (ruw)",
+        "powerFactor": "Vermogen (in procent)",
+        "power": "Vermogen (in kWt)",
+        "fanSpeed": "Ventilatorsnelheid",
+        "co2": "CO2",
+        "pressure": "Druk",
+        "humidity": "Luchtvochtigheid",
+        "temperature": "Temperatuur",
+        "notConfigured": "Niet geconfigureerd"
+      },
+      "type": "Type/bron",
+      "types": {
+        "otOutdoorTemp": "OpenTherm, buitentemp.",
+        "otHeatTemp": "OpenTherm, verwarming, temp.",
+        "otHeatRetTemp": "OpenTherm, verwarming, retourtemp.",
+        "otDhwTemp": "OpenTherm, warm water, temperatuur",
+        "otDhwTemp2": "OpenTherm, warm water, temperatuur 2",
+        "otDhwFlowRate": "OpenTherm, warm water, doorstroomsnelheid",
+        "otCh2Temp": "OpenTherm, kanaal 2, temp.",
+        "otExhaustTemp": "OpenTherm, rookgastemp.",
+        "otHeatExchangerTemp": "OpenTherm, warmtewisselaar temp.",
+        "otPressure": "OpenTherm, druk",
+        "otModLevel": "OpenTherm, modulatieniveau",
+        "otCurrentPower": "OpenTherm, huidig vermogen",
+        "otExhaustCo2": "OpenTherm, rookgas CO2",
+        "otExhaustFanSpeed": "OpenTherm, rookgasventilator snelheid",
+        "otSupplyFanSpeed": "OpenTherm, toevoerventilator snelheid",
+        "otSolarStorageTemp": "OpenTherm, zonneboiler opslagtemp.",
+        "otSolarCollectorTemp": "OpenTherm, zonnecollector temp.",
+        "otFanSpeedSetpoint": "OpenTherm, instelpunt ventilatorsnelheid",
+        "otFanSpeedCurrent": "OpenTherm, huidige ventilatorsnelheid",
+        "otBurnerStarts": "OpenTherm, aantal branderstarts",
+        "otDhwBurnerStarts": "OpenTherm, aantal branderstarts (warm water)",
+        "otHeatingPumpStarts": "OpenTherm, aantal pompstarts (verwarming)",
+        "otDhwPumpStarts": "OpenTherm, aantal pompstarts (warm water)",
+        "otBurnerHours": "OpenTherm, aantal branderuren",
+        "otDhwBurnerHours": "OpenTherm, aantal branderuren (warm water)",
+        "otHeatingPumpHours": "OpenTherm, aantal pompuren (verwarming)",
+        "otDhwPumpHours": "OpenTherm, aantal pompuren (warm water)",
+        "ntcTemp": "NTC-sensor",
+        "dallasTemp": "DALLAS-sensor",
+        "bluetooth": "BLE-sensor",
+        "heatSetpointTemp": "Verwarming, insteltemperatuur",
+        "manual": "Handmatig via MQTT/API",
+        "notConfigured": "Niet geconfigureerd"
+      },
+      "gpio": "GPIO",
+      "address": {
+        "title": "Sensoradres",
+        "note": "Laat leeg voor automatische detectie van DALLAS-sensoren. Voor BLE-apparaten is een MAC-adres vereist."
+      },
+      "correction": {
+        "desc": "Correctie van waarden",
+        "offset": "Compensatie (offset)",
+        "factor": "Vermenigvuldiger"
+      },
+      "filtering": {
+        "desc": "Filteren van waarden",
+        "enabled": {
+          "title": "Filteren ingeschakeld",
+          "note": "Kan handig zijn bij veel scherpe ruis in de grafieken. Het gebruikte filter is \"Voortschrijdend gemiddelde\"."
+        },
+        "factor": {
+          "title": "Filterfactor",
+          "note": "Hoe lager de waarde, hoe vloeiender en <u>langer</u> de verandering in numerieke waarden."
+        }
+      }
+    },
+    "settings": {
+      "title": "Instellingen - OpenTherm Gateway",
+      "name": "Instellingen",
+      "section": {
+        "portal": "Portaalinstellingen",
+        "system": "Systeeminstellingen",
+        "diag": "Diagnose",
+        "heating": "Verwarmingsinstellingen",
+        "dhw": "Warmwaterinstellingen",
+        "emergency": "Instellingen noodmodus",
+        "equitherm": "Equitherm-instellingen",
+        "pid": "PID-instellingen",
+        "ot": "OpenTherm-instellingen",
+        "mqtt": "MQTT-instellingen",
+        "extPump": "Instellingen externe pomp",
+        "cascadeControl": "Instellingen cascaderegeling"
+      },
+      "enable": "Inschakelen",
+      "note": {
+        "restart": "Na het wijzigen van deze instellingen moet het apparaat opnieuw worden opgestart om de wijzigingen door te voeren.",
+        "blankNotUse": "leeg - niet gebruiken",
+        "bleDevice": "BLE-apparaat kan <u>alleen</u> worden gebruikt met sommige ESP32-boards met BLE-ondersteuning!"
+      },
+      "temp": {
+        "min": "Minimumtemperatuur",
+        "max": "Maximumtemperatuur"
+      },
+      "maxModulation": "Max. modulatieniveau",
+      "ohProtection": {
+        "title": "Oververhittingsbeveiliging",
+        "desc": "<b>Let op:</b> Deze functie kan handig zijn als de ingebouwde oververhittingsbeveiliging van de ketel niet of niet correct werkt en de warmtedrager kookt. Om uit te schakelen, stel 0 in als <b>hoge</b> en <b>lage</b> temperatuur.",
+        "highTemp": {
+          "title": "Drempelwaarde hoge temperatuur",
+          "note": "Drempelwaarde waarbij de brander geforceerd wordt uitgeschakeld"
+        },
+        "lowTemp": {
+          "title": "Drempelwaarde lage temperatuur",
+          "note": "Drempelwaarde waarbij de brander weer ingeschakeld kan worden"
+        }
+      },
+      "freezeProtection": {
+        "title": "Vorstbeveiliging",
+        "desc": "De verwarming wordt geforceerd ingeschakeld als de temperatuur van de warmtedrager of de binnentemperatuur onder de <b>Lage temperatuur</b> daalt gedurende de <b>Wachttijd</b>.",
+        "lowTemp": "Drempelwaarde lage temperatuur",
+        "thresholdTime": "Wachttijd <small>(sec)</small>"
+      },
+      "portal": {
+        "login": "Gebruikersnaam",
+        "password": "Wachtwoord",
+        "auth": "Authenticatie vereisen",
+        "mdns": "Gebruik mDNS"
+      },
+      "system": {
+        "unit": "Eenheidssysteem",
+        "metric": "Metrisch <small>(celsius, liters, bar)</small>",
+        "imperial": "Imperiaal <small>(fahrenheit, gallons, psi)</small>",
+        "statusLedGpio": "Status LED GPIO",
+        "logLevel": "Logniveau",
+        "serial": {
+          "enable": "Seriële poort ingeschakeld",
+          "baud": "Baudrate seriële poort"
+        },
+        "webSerial": {
+          "enable": "WebSerial ingeschakeld"
+        },
+        "ntp": {
+          "server": "NTP-server",
+          "timezone": "Tijdzone",
+          "timezonePresets": "Selecteer voorinstelling..."
+        }
+      },
+      "heating": {
+        "hyst": "Hysterese <small>(in graden)</small>",
+        "turboFactor": "Turbomodus coëff."
+      },
+      "emergency": {
+        "desc": "Noodmodus wordt automatisch geactiveerd wanneer «PID» of «Equitherm» het instelpunt van de warmtedrager niet kan berekenen:<br />- als «Equitherm» is ingeschakeld en de buitentemperatuursensor is losgekoppeld;<br />- als «PID» of OT-optie <i>«Natuurlijke verwarmingsregeling»</i> is ingeschakeld en de binnentemperatuursensor is losgekoppeld.<br /><b>Let op:</b> Bij een netwerk- of MQTT-storing krijgen sensoren van het type <i>«Handmatig via MQTT/API»</i> de status ONVERBONDEN.",
+        "target": {
+          "title": "Doeltemperatuur",
+          "note": "<b>Belangrijk:</b> <u>Doel binnentemperatuur</u> als OT-optie <i>«Natuurlijke verwarmingsregeling»</i> is ingeschakeld.<br />In alle andere gevallen, de <u>doel warmtedragertemperatuur</u>."
+        },
+        "treshold": "Drempeltijd <small>(sec)</small>"
+      },
+      "equitherm": {
+        "n": "N-factor",
+        "k": "K-factor",
+        "t": {
+          "title": "T-factor",
+          "note": "Niet gebruikt als PID is ingeschakeld"
+        }
+      },
+      "pid": {
+        "p": "P-factor",
+        "i": "I-factor",
+        "d": "D-factor",
+        "dt": "DT <small>in seconden</small>",
+        "limits": {
+          "title": "Limieten",
+          "note": "<b>Belangrijk:</b> Bij gelijktijdig gebruik van «Equitherm» en «PID» beperken de min- en maxtemperaturen de invloed op de resulterende «Equitherm»-temperatuur.<br />Dus, als de min-temperatuur is ingesteld op -15 en de max-temperatuur op 15, zal het uiteindelijke instelpunt van de warmtedrager liggen tussen <code>equitherm_resultaat - 15</code> en <code>equitherm_resultaat + 15</code>."
+        },
+        "deadband": {
+          "title": "Deadband",
+          "note": "Deadband is een bereik rond de doeltemperatuur waarbinnen de PID-regeling minder actief wordt. Binnen dit bereik kan het algoritme de intensiteit verminderen of aanpassingen pauzeren om overreactie op kleine schommelingen te voorkomen.<br /><br />Bijvoorbeeld, met een doeltemperatuur van 22°, een onderdrempel van 1.0 en een bovendrempel van 0.5, werkt de deadband tussen 21° en 22.5°. Als de I-coëfficiënt 0.0005 is en de I-vermenigvuldiger 0.05, dan wordt de I-coëfficiënt binnen de deadband: <code>0.0005 * 0.05 = 0.000025</code>",
+          "p_multiplier": "Vermenigvuldiger voor P-factor",
+          "i_multiplier": "Vermenigvuldiger voor I-factor",
+          "d_multiplier": "Vermenigvuldiger voor D-factor",
+          "thresholdHigh": "Bovendrempel",
+          "thresholdLow": "Onderdrempel"
+        }
+      },
+      "ot": {
+        "advanced": "Geavanceerde instellingen",
+        "inGpio": "In GPIO",
+        "outGpio": "Uit GPIO",
+        "ledGpio": "RX LED GPIO",
+        "memberId": "Master member ID",
+        "flags": "Master flags",
+        "minPower": {
+          "title": "Min. ketelvermogen <small>(kW)</small>",
+          "note": "Deze waarde is bij 0-1% modulatieniveau van de ketel. Typisch te vinden in de ketelspecificatie als \"minimum nuttig warmtevermogen\"."
+        },
+        "maxPower": {
+          "title": "Max. ketelvermogen <small>(kW)</small>",
+          "note": "<b>0</b> - probeer automatisch te detecteren. Typisch te vinden in de ketelspecificatie als \"maximum nuttig warmtevermogen\"."
+        },
+        "options": {
+          "title": "Opties (aanvullende instellingen)",
+          "desc": "Opties kunnen de logica van de ketel veranderen. Niet alle opties zijn gedocumenteerd in het protocol, dus dezelfde optie kan verschillende effecten hebben op verschillende ketels.<br /><b>Let op:</b> Het is niet nodig om iets te veranderen als alles goed werkt.",
+          "dhwSupport": "Warm water ondersteuning",
+          "coolingSupport": "Koeling ondersteuning",
+          "summerWinterMode": "Zomer/wintermodus",
+          "heatingStateToSummerWinterMode": "Verwarmingsstatus als zomer/wintermodus",
+          "ch2AlwaysEnabled": "CH2 altijd ingeschakeld",
+          "heatingToCh2": "Dupliceer verwarming naar CH2",
+          "dhwToCh2": "Dupliceer warm water naar CH2",
+          "dhwBlocking": "Blokkering warm water",
+          "dhwStateAsDhwBlocking": "Status warm water als blokkering warm water",
+          "maxTempSyncWithTargetTemp": "Synchroniseer max. verwarmingstemp. met doeltemp.",
+          "getMinMaxTemp": "Haal min/max temp. op van ketel",
+          "ignoreDiagState": "Negeer diagnosestatus",
+          "autoFaultReset": "Automatische storingsreset <small>(niet aanbevolen!)</small>",
+          "autoDiagReset": "Automatische diagnosereset <small>(niet aanbevolen!)</small>",
+          "setDateAndTime": "Stel datum & tijd in op ketel",
+          "immergasFix": "Fix voor Immergas-ketels"
+        },
+        "nativeHeating": {
+          "title": "Natuurlijke verwarmingsregeling (ketel)",
+          "note": "Werkt <u>ALLEEN</u> als de ketel de gewenste kamertemperatuur vereist en zelf de temperatuur van de warmtedrager regelt. Niet compatibel met PID- en Equitherm-regelaars in de firmware."
+        }
+      },
+      "mqtt": {
+        "homeAssistantDiscovery": "Home Assistant Discovery",
+        "server": "Server",
+        "port": "Poort",
+        "user": "Gebruiker",
+        "password": "Wachtwoord",
+        "prefix": "Prefix",
+        "interval": "Publicatie-interval <small>(sec)</small>"
+      },
+      "extPump": {
+        "use": "Gebruik externe pomp",
+        "gpio": "Relais GPIO",
+        "invertState": "Inverteer GPIO-status",
+        "postCirculationTime": "Nacirculatietijd <small>(min)</small>",
+        "antiStuckInterval": "Anti-vastloopinterval <small>(dagen)</small>",
+        "antiStuckTime": "Anti-vastlooptijd <small>(min)</small>"
+      },
+      "cascadeControl": {
+        "input": {
+          "desc": "Kan worden gebruikt om de verwarming alleen in te schakelen als een andere ketel defect is. De besturing van de andere ketel moet de status van de GPIO-ingang wijzigen in geval van een storing.",
+          "enable": "Ingang ingeschakeld",
+          "gpio": "GPIO",
+          "invertState": "Inverteer GPIO-status",
+          "thresholdTime": "Drempeltijd statuswijziging <small>(sec)</small>"
+        },
+        "output": {
+          "desc": "Kan worden gebruikt om een andere ketel in te schakelen <u>via een relais</u>.",
+          "enable": "Uitgang ingeschakeld",
+          "gpio": "GPIO",
+          "invertState": "Inverteer GPIO-status",
+          "thresholdTime": "Drempeltijd statuswijziging <small>(sec)</small>",
+          "events": {
+            "desc": "Gebeurtenissen",
+            "onFault": "Als de storingsstatus actief is",
+            "onLossConnection": "Als de verbinding via Opentherm is verbroken",
+            "onEnabledHeating": "Als de verwarming is ingeschakeld"
+          }
+        }
+      }
+    },
+    "upgrade": {
+      "title": "Upgrade - OpenTherm Gateway",
+      "name": "Upgrade",
+      "section": {
+        "backupAndRestore": "Back-up & herstel",
+        "backupAndRestore.desc": "In deze sectie kunt u een back-up van ALLE instellingen opslaan en herstellen.",
+        "upgrade": "Upgrade",
+        "upgrade.desc": "In deze sectie kunt u de firmware en het bestandssysteem van uw apparaat upgraden.<br />De nieuwste releases kunnen worden gedownload van de <a href=\"https://github.com/Laxilef/OTGateway/releases\" target=\"_blank\">Releases-pagina</a> van de projectrepository."
+      },
+      "note": {
+        "disclaimer1": "Na een succesvolle upgrade van het bestandssysteem worden ALLE instellingen teruggezet naar de standaardwaarden! Sla een back-up op voordat u gaat upgraden.",
+        "disclaimer2": "Na een succesvolle upgrade zal het apparaat automatisch herstarten na 15 seconden."
+      },
+      "settingsFile": "Instellingenbestand",
+      "fw": "Firmware",
+      "fs": "Bestandssysteem"
+    }
+  }
+}
--- a/src_data/locales/ru.json
+++ b/src_data/locales/ru.json
@@ -109,7 +109,8 @@

        "sConnected": "Подключение к OpenTherm",
        "sFlame": "Пламя",
-        "sCooling": "Охлаждение",
+        "sCoolingActive": "Охлаждение",
+        "sCoolingSetpoint": "Охлаждение, уставка",
        "sFaultActive": "Ошибка",
        "sFaultCode": "Код ошибки",
        "sDiagActive": "Диагностика",
@@ -340,12 +341,8 @@
          "enable": "Вкл. Serial порт",
          "baud": "Скорость Serial порта"
        },
-        "telnet": {
-          "enable": "Вкл. Telnet",
-          "port": {
-            "title": "Telnet порт",
-            "note": "По умолчанию: 23"
-          }
+        "webSerial": {
+          "enable": "Вкл. WebSerial"
        },
        "ntp": {
          "server": "NTP сервер",
@@ -454,6 +451,7 @@
      "extPump": {
        "use": "Использовать доп. насос",
        "gpio": "GPIO реле",
+        "invertState": "Инвертировать состояние GPIO",
        "postCirculationTime": "Время постциркуляции <small>(в минутах)</small>",
        "antiStuckInterval": "Интервал защиты от блокировки <small>(в днях)</small>",
        "antiStuckTime": "Время работы насоса <small>(в минутах)</small>"
--- a/src_data/pages/dashboard.html
+++ b/src_data/pages/dashboard.html
@@ -23,6 +23,7 @@
              <option value="en" selected>EN</option>
              <option value="cn">CN</option>
              <option value="it">IT</option>
+              <option value="nl">NL</option>
              <option value="ru">RU</option>
            </select>
          </li>
@@ -153,9 +154,14 @@
                  <th scope="row" data-i18n>dashboard.states.sFlame</th>
                  <td><i class="sFlame"></i></td>
                </tr>
+
                <tr>
-                  <th scope="row" data-i18n>dashboard.states.sCooling</th>
-                  <td><i class="sCooling"></i></td>
+                  <th scope="row" data-i18n>dashboard.states.sCoolingActive</th>
+                  <td><i class="sCoolingActive"></i></td>
+                </tr>
+                <tr>
+                  <th scope="row" data-i18n>dashboard.states.sCoolingSetpoint</th>
+                  <td><b class="sCoolingSetpoint"></b> %</td>
                </tr>


@@ -557,7 +563,9 @@
              result.slave.connected ? "green" : "red"
            );
            setState('.sFlame', result.slave.flame);
-            setState('.sCooling', result.slave.cooling);
+
+            setState('.sCoolingActive', result.slave.cooling.active);
+            setValue('.sCoolingSetpoint', result.slave.cooling.setpoint);

            setValue('.sModMin', result.slave.modulation.min);
            setValue('.sModMax', result.slave.modulation.max);
--- a/src_data/pages/index.html
+++ b/src_data/pages/index.html
@@ -23,6 +23,7 @@
              <option value="en" selected>EN</option>
              <option value="cn">CN</option>
              <option value="it">IT</option>
+              <option value="nl">NL</option>
              <option value="ru">RU</option>
            </select>
          </li>
--- a/src_data/pages/network.html
+++ b/src_data/pages/network.html
@@ -23,6 +23,7 @@
              <option value="en" selected>EN</option>
              <option value="cn">CN</option>
              <option value="it">IT</option>
+              <option value="nl">NL</option>
              <option value="ru">RU</option>
            </select>
          </li>
--- a/src_data/pages/sensors.html
+++ b/src_data/pages/sensors.html
@@ -23,6 +23,7 @@
              <option value="en" selected>EN</option>
              <option value="cn">CN</option>
              <option value="it">IT</option>
+              <option value="nl">NL</option>
              <option value="ru">RU</option>
            </select>
          </li>
--- a/src_data/pages/settings.html
+++ b/src_data/pages/settings.html
@@ -23,6 +23,7 @@
              <option value="en" selected>EN</option>
              <option value="cn">CN</option>
              <option value="it">IT</option>
+              <option value="nl">NL</option>
              <option value="ru">RU</option>
            </select>
          </li>
@@ -125,8 +126,8 @@
                </label>

                <label>
-                  <input type="checkbox" name="system[telnet][enabled]" value="true">
-                  <span data-i18n>settings.system.telnet.enable</span>
+                  <input type="checkbox" name="system[webSerial][enabled]" value="true">
+                  <span data-i18n>settings.system.webSerial.enable</span>
                </label>

                <label>
@@ -155,12 +156,6 @@
                      <option value="115200">115200</option>
                    </select>
                  </label>
-
-                  <label>
-                    <span data-i18n>settings.system.telnet.port.title</span>
-                    <input type="number" inputmode="numeric" name="system[telnet][port]" min="1" max="65535" step="1" required>
-                    <small data-i18n>settings.system.telnet.port.note</small>
-                  </label>
                </div>

                <mark data-i18n>settings.note.restart</mark>
@@ -730,6 +725,11 @@
                  <input type="checkbox" name="externalPump[use]" value="true">
                  <span data-i18n>settings.extPump.use</span>
                </label>
+
+                <label>
+                  <input type="checkbox" name="externalPump[invertState]" value="true">
+                  <span data-i18n>settings.externalPump.invertState</span>
+                </label>
              </fieldset>

              <div class="grid">
@@ -870,8 +870,7 @@
          setSelectValue("[name='system[logLevel]']", data.system.logLevel);
          setCheckboxValue("[name='system[serial][enabled]']", data.system.serial.enabled);
          setSelectValue("[name='system[serial][baudrate]']", data.system.serial.baudrate);
-          setCheckboxValue("[name='system[telnet][enabled]']", data.system.telnet.enabled);
-          setInputValue("[name='system[telnet][port]']", data.system.telnet.port);
+          setCheckboxValue("[name='system[webSerial][enabled]']", data.system.webSerial.enabled);
          setInputValue("[name='system[ntp][server]']", data.system.ntp.server);
          setInputValue("[name='system[ntp][timezone]']", data.system.ntp.timezone);
          setRadioValue("[name='system[unitSystem]']", data.system.unitSystem);
@@ -927,6 +926,7 @@
          // Extpump
          setCheckboxValue("[name='externalPump[use]']", data.externalPump.use);
          setInputValue("[name='externalPump[gpio]']", data.externalPump.gpio < 255 ? data.externalPump.gpio : '');
+          setCheckboxValue("[name='externalPump[invertState]']", data.externalPump.invertState);
          setInputValue("[name='externalPump[postCirculationTime]']", data.externalPump.postCirculationTime);
          setInputValue("[name='externalPump[antiStuckInterval]']", data.externalPump.antiStuckInterval);
          setInputValue("[name='externalPump[antiStuckTime]']", data.externalPump.antiStuckTime);
--- a/src_data/pages/upgrade.html
+++ b/src_data/pages/upgrade.html
@@ -23,6 +23,7 @@
              <option value="en" selected>EN</option>
              <option value="cn">CN</option>
              <option value="it">IT</option>
+              <option value="nl">NL</option>
              <option value="ru">RU</option>
            </select>
          </li>
@@ -61,19 +62,19 @@

          <form action="/api/upgrade" id="upgrade">
            <fieldset class="primary">
-              <label for="firmware-file">
+              <label>
                <span data-i18n>upgrade.fw</span>:
                <div class="grid">
-                  <input type="file" name="firmware" id="firmware-file" accept=".bin">
-                  <button type="button" class="upgrade-firmware-result hidden" disabled></button>
+                  <input type="file" name="fw" accept=".bin">
+                  <button type="button" class="fwResult hidden" disabled></button>
                </div>
              </label>

-              <label for="filesystem-file">
+              <label>
                <span data-i18n>upgrade.fs</span>:
                <div class="grid">
-                  <input type="file" name="filesystem" id="filesystem-file" accept=".bin">
-                  <button type="button" class="upgrade-filesystem-result hidden" disabled></button>
+                  <input type="file" name="fs" accept=".bin">
+                  <button type="button" class="fsResult hidden" disabled></button>
                </div>
              </label>
            </fieldset>
@@ -107,7 +108,123 @@
        lang.build();

        setupRestoreBackupForm('#restore');
-        setupUpgradeForm('#upgrade');
+
+        const upgradeForm = document.querySelector('#upgrade');
+        if (upgradeForm) {
+          upgradeForm.reset();
+          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 "Size mismatch";
+              case 5:
+                return "Error on start";
+              case 6:
+                return "Error on write";
+              case 7:
+                return "Error on finish";
+              default:
+                return "Unknown";
+            }
+          };
+
+          upgradeForm.addEventListener('submit', async (event) => {
+            event.preventDefault();
+
+            hide('.fwResult');
+            hide('.fsResult');
+
+            let button = upgradeForm.querySelector('button[type="submit"]');
+            button.textContent = i18n('button.uploading');
+            button.setAttribute('disabled', true);
+            button.setAttribute('aria-busy', true);
+
+            try {
+              let fd = new FormData();
+
+              const fw = upgradeForm.querySelector("[name='fw']").files;
+              if (fw.length > 0) {
+                fd.append("fw_size", fw[0].size);
+                fd.append("fw", fw[0]);
+              }
+
+              const fs = upgradeForm.querySelector("[name='fs']").files;
+              if (fs.length > 0) {
+                fd.append("fs_size", fs[0].size);
+                fd.append("fs", fs[0]);
+              }
+
+              let response = await fetch(upgradeForm.action, {
+                method: "POST",
+                cache: "no-cache",
+                credentials: "include",
+                body: fd
+              });
+              
+              if (response.status != 202 && response.status != 406) {
+                throw new Error('Response not valid');
+              }
+
+              const result = await response.json();
+              let resItem = upgradeForm.querySelector('.fwResult');
+              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 = upgradeForm.querySelector('.fsResult');
+              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}`;
+                  }
+                }
+              }
+
+            } catch (err) {
+              console.log(err);
+              button.textContent = i18n('button.error');
+              button.classList.add('failed');
+
+            } finally {
+              setTimeout(() => {
+                button.removeAttribute('aria-busy');
+                button.removeAttribute('disabled');
+                button.classList.remove('success', 'failed');
+                button.textContent = i18n(button.dataset.i18n);
+                upgradeForm.reset();
+              }, 10000);
+            }
+          });
+        }
      });
    </script>
  </body>
--- a/src_data/scripts/utils.js
+++ b/src_data/scripts/utils.js
@@ -313,19 +313,25 @@ const setupRestoreBackupForm = (formSelector) => {
        console.log("Backup: ", data);

        if (data.settings != undefined) {
-          let response = await fetch(url, {
-            method: "POST",
-            cache: "no-cache",
-            credentials: "include",
-            headers: {
-              "Content-Type": "application/json"
-            },
-            body: JSON.stringify({"settings": data.settings})
-          });
+          for (var key in data.settings) {
+            let response = await fetch(url, {
+              method: "POST",
+              cache: "no-cache",
+              credentials: "include",
+              headers: {
+                "Content-Type": "application/json"
+              },
+              body: JSON.stringify({
+                "settings": {
+                  [key]: data.settings[key]
+                }
+              })
+            });

-          if (!response.ok) {
-            onFailed();
-            return;
+            if (!response.ok) {
+              onFailed();
+              return;
+            }
          }
        }
Author	SHA1	Message	Date
Yurii	1d7f85f462	refactor: migrating from Telnet to WebSerial for remote logging	2025-11-06 13:29:59 +03:00
Yurii	192f4ee18b	refactor: improved OTA upgrade	2025-11-06 13:23:19 +03:00
Yurii	f048d973d3	chore: bump pioarduino/platform-espressif32 from 3.3.2 to 3.3.3	2025-11-06 13:21:34 +03:00
Yurii	d576969ea4	refactor: initial async web server	2025-11-02 11:28:46 +03:00
Yurii	b9010643f0	feat: added GPIO inversion setting for extpump	2025-10-31 21:08:35 +03:00
Yurii	5667199988	refactor: reset BLE/DALLAS address if not valid	2025-10-14 07:38:30 +03:00
Yurii	cf81ff5856	refactor: improved work with BLE sensors	2025-10-10 05:35:57 +03:00
Yurii	78b5a12e90	feat: setting the cooling setpoint if cooling support is enabled	2025-10-09 22:57:04 +03:00
Yurii	cc5bbb7a87	refactor: refactoring after #184	2025-10-09 08:22:07 +03:00
Douwe	dda79151f3	feat: added Dutch locale #184 * Create nl.json * Update nl.json	2025-10-09 08:19:55 +03:00
Yurii	1375d8c7a5	chore: bump pioarduino/platform-espressif32 from 3.3.1 to 3.3.2	2025-10-09 08:16:04 +03:00
Yurii	d4addf887f	refactor: improved work with BLE sensors	2025-10-09 08:13:33 +03:00