Merge branch 'master' into new-equitherm

For Baxi Slim with Bertelli

.gitignore

@@ -1,5 +1,6 @@
 .pio
 .vscode
+.PVS-Studio
 build/*
 data/*
 managed_components/*

README.md

@@ -71,5 +71,10 @@ All available information and instructions can be found in the wiki:
       * [Connection](https://github.com/Laxilef/OTGateway/wiki/OT-adapters#connection)
       * [Leds on board](https://github.com/Laxilef/OTGateway/wiki/OT-adapters#leds-on-board)
 
-___
+## Gratitude
-This project is tested with BrowserStack.
+* To the developers of the libraries used: [OpenTherm Library](https://github.com/ihormelnyk/opentherm_library), [ESP8266Scheduler](https://github.com/nrwiersma/ESP8266Scheduler), [ArduinoJson](https://github.com/bblanchon/ArduinoJson), [NimBLE-Arduino](https://github.com/h2zero/NimBLE-Arduino), [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), [FileData](https://github.com/GyverLibs/FileData), [OneWireNg](https://github.com/pstolarz/OneWireNg) & [OneWire](https://github.com/PaulStoffregen/OneWire)
+* To the [PlatformIO](https://platformio.org/) Team
+* To the team and contributors of the [pioarduino](https://github.com/pioarduino/platform-espressif32) project
+* To the [BrowserStack](https://www.browserstack.com/) team. This project is tested with BrowserStack.
+* To the [PVS-Studio](https://pvs-studio.com/pvs-studio/?utm_source=website&utm_medium=github&utm_campaign=open_source) - static analyzer for C, C++, C#, and Java code.
+* And of course to the contributors for their contribution to the development of the project!

gulpfile.js

@@ -27,6 +27,9 @@ let paths = {
         'src_data/scripts/i18n.min.js',
         'src_data/scripts/lang.js',
         'src_data/scripts/utils.js'
+      ],
+      'chart.js': [
+        'src_data/scripts/chart.js'
       ]
     }
   },

lib/CustomOpenTherm/CustomOpenTherm.h

@@ -106,6 +106,11 @@ public:
     return isValidResponse(response) && isValidResponseId(response, OpenThermMessageID::RemoteRequest);
   }
 
+  static bool isCh2Active(unsigned long response)
+  {
+      return response & 0x20;
+  }
+
   static bool isValidResponseId(unsigned long response, OpenThermMessageID id) {
     byte responseId = (response >> 16) & 0xFF;
 

lib/Equitherm/Equitherm.h

@@ -1,63 +0,0 @@
-#include <Arduino.h>
-
-#if defined(EQUITHERM_INTEGER)
-// расчёты с целыми числами
-typedef int datatype;
-#else
-// расчёты с float числами
-typedef float datatype;
-#endif
-
-class Equitherm {
-public:
-  datatype targetTemp = 0;
-  datatype indoorTemp = 0;
-  datatype outdoorTemp = 0;
-  float Kn = 0.0;
-  float Kk = 0.0;
-  float Kt = 0.0;
-
-  Equitherm() = default;
-
-  // kn, kk, kt
-  Equitherm(float new_kn, float new_kk, float new_kt) {
-    Kn = new_kn;
-    Kk = new_kk;
-    Kt = new_kt;
-  }
-
-  // лимит выходной величины
-  void setLimits(unsigned short min_output, unsigned short max_output) {
-    _minOut = min_output;
-    _maxOut = max_output;
-  }
-
-  // возвращает новое значение при вызове
-  datatype getResult() {
-    datatype output = getResultN() + getResultK() + getResultT();
-    output = constrain(output, _minOut, _maxOut);		// ограничиваем выход
-    return output;
-  }
-
-private:
-  unsigned short _minOut = 20, _maxOut = 90;
-
-  // температура контура отопления в зависимости от наружной температуры
-  datatype getResultN() {
-    float a = (-0.21 * Kn) - 0.06;     // a = -0,21k — 0,06
-    float b = (6.04 * Kn) + 1.98;      // b = 6,04k + 1,98
-    float c = (-5.06 * Kn) + 18.06;    // с = -5,06k + 18,06
-    float x = (-0.2 * outdoorTemp) + 5; // x = -0.2*t1 + 5
-    return (a * x * x) + (b * x) + c;       // Tn = ax2 + bx + c
-  }
-
-  // поправка на желаемую комнатную температуру
-  datatype getResultK() {
-    return (targetTemp - 20) * Kk;
-  }
-
-  // Расчет поправки (ошибки) термостата
-  datatype getResultT() {
-    return constrain((targetTemp - indoorTemp), -3, 3) * Kt;
-  }
-};

src/HaHelper.h

@@ -840,19 +840,19 @@ public:
     return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_SWITCH), F("equitherm")).c_str(), doc);
   }
 
-  bool publishInputEquithermFactorN(bool enabledByDefault = true) {
+  bool publishInputEquithermSlope(bool enabledByDefault = true) {
     JsonDocument doc;
     doc[FPSTR(HA_AVAILABILITY)][FPSTR(HA_TOPIC)] = this->statusTopic.c_str();
     doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
-    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("equitherm_n"));
+    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("equitherm_slope"));
     doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
     doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_CONFIG);
-    doc[FPSTR(HA_NAME)] = F("Equitherm factor N");
+    doc[FPSTR(HA_NAME)] = F("Equitherm slope");
-    doc[FPSTR(HA_ICON)] = F("mdi:alpha-n-circle-outline");
+    doc[FPSTR(HA_ICON)] = F("mdi:slope-uphill");
     doc[FPSTR(HA_STATE_TOPIC)] = this->settingsTopic.c_str();
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.equitherm.n_factor|float(0)|round(3) }}");
+    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.equitherm.slope|float(0)|round(3) }}");
     doc[FPSTR(HA_COMMAND_TOPIC)] = this->setSettingsTopic.c_str();
-    doc[FPSTR(HA_COMMAND_TEMPLATE)] = F("{\"equitherm\": {\"n_factor\" : {{ value }}}}");
+    doc[FPSTR(HA_COMMAND_TEMPLATE)] = F("{\"equitherm\": {\"slope\" : {{ value }}}}");
     doc[FPSTR(HA_MIN)] = 0.001f;
     doc[FPSTR(HA_MAX)] = 10;
     doc[FPSTR(HA_STEP)] = 0.001f;
@@ -860,56 +860,80 @@ public:
     doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
     doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_NUMBER), F("equitherm_n_factor")).c_str(), doc);
+    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_NUMBER), F("equitherm_slope")).c_str(), doc);
   }
 
-  bool publishInputEquithermFactorK(bool enabledByDefault = true) {
+  bool publishInputEquithermExponent(bool enabledByDefault = true) {
     JsonDocument doc;
     doc[FPSTR(HA_AVAILABILITY)][FPSTR(HA_TOPIC)] = this->statusTopic.c_str();
     doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
-    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("equitherm_k"));
+    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("equitherm_exponent"));
     doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
     doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_CONFIG);
-    doc[FPSTR(HA_NAME)] = F("Equitherm factor K");
+    doc[FPSTR(HA_NAME)] = F("Equitherm exponent");
-    doc[FPSTR(HA_ICON)] = F("mdi:alpha-k-circle-outline");
+    doc[FPSTR(HA_ICON)] = F("mdi:exponent");
     doc[FPSTR(HA_STATE_TOPIC)] = this->settingsTopic.c_str();
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.equitherm.k_factor|float(0)|round(2) }}");
+    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.equitherm.exponent|float(0)|round(3) }}");
     doc[FPSTR(HA_COMMAND_TOPIC)] = this->setSettingsTopic.c_str();
-    doc[FPSTR(HA_COMMAND_TEMPLATE)] = F("{\"equitherm\": {\"k_factor\" : {{ value }}}}");
+    doc[FPSTR(HA_COMMAND_TEMPLATE)] = F("{\"equitherm\": {\"exponent\" : {{ value }}}}");
-    doc[FPSTR(HA_MIN)] = 0;
+    doc[FPSTR(HA_MIN)] = 0.1;
-    doc[FPSTR(HA_MAX)] = 10;
+    doc[FPSTR(HA_MAX)] = 2;
+    doc[FPSTR(HA_STEP)] = 0.001f;
+    doc[FPSTR(HA_MODE)] = FPSTR(HA_MODE_BOX);
+    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
+    doc.shrinkToFit();
+
+    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_NUMBER), F("equitherm_exponent")).c_str(), doc);
+  }
+
+  bool publishInputEquithermShift(bool enabledByDefault = true) {
+    JsonDocument doc;
+    doc[FPSTR(HA_AVAILABILITY)][FPSTR(HA_TOPIC)] = this->statusTopic.c_str();
+    doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
+    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("equitherm_shift"));
+    doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
+    doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_CONFIG);
+    doc[FPSTR(HA_DEVICE_CLASS)] = FPSTR(S_TEMPERATURE);
+    doc[FPSTR(HA_NAME)] = F("Equitherm shift");
+    doc[FPSTR(HA_ICON)] = F("mdi:chart-areaspline");
+    doc[FPSTR(HA_STATE_TOPIC)] = this->settingsTopic.c_str();
+    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.equitherm.shift|float(0)|round(2) }}");
+    doc[FPSTR(HA_COMMAND_TOPIC)] = this->setSettingsTopic.c_str();
+    doc[FPSTR(HA_COMMAND_TEMPLATE)] = F("{\"equitherm\": {\"shift\" : {{ value }}}}");
+    doc[FPSTR(HA_MIN)] = -15;
+    doc[FPSTR(HA_MAX)] = 15;
     doc[FPSTR(HA_STEP)] = 0.01f;
     doc[FPSTR(HA_MODE)] = FPSTR(HA_MODE_BOX);
     doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
     doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_NUMBER), F("equitherm_k_factor")).c_str(), doc);
+    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_NUMBER), F("equitherm_shift")).c_str(), doc);
   }
 
-  bool publishInputEquithermFactorT(bool enabledByDefault = true) {
+  bool publishInputEquithermTargetDiffFactor(bool enabledByDefault = true) {
     JsonDocument doc;
     doc[FPSTR(HA_AVAILABILITY)][0][FPSTR(HA_TOPIC)] = this->statusTopic.c_str();
     doc[FPSTR(HA_AVAILABILITY)][1][FPSTR(HA_TOPIC)] = this->settingsTopic.c_str();
     doc[FPSTR(HA_AVAILABILITY)][1][FPSTR(HA_VALUE_TEMPLATE)] = F("{{ iif(value_json.pid.enabled, 'offline', 'online') }}");
     doc[FPSTR(HA_AVAILABILITY_MODE)] = F("all");
     doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
-    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("equitherm_t"));
+    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("equitherm_target_diff_factor"));
     doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
     doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_CONFIG);
-    doc[FPSTR(HA_NAME)] = F("Equitherm factor T");
+    doc[FPSTR(HA_NAME)] = F("Equitherm target diff factor");
-    doc[FPSTR(HA_ICON)] = F("mdi:alpha-t-circle-outline");
+    doc[FPSTR(HA_ICON)] = F("mdi:chart-timeline-variant-shimmer");
     doc[FPSTR(HA_STATE_TOPIC)] = this->settingsTopic.c_str();
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.equitherm.t_factor|float(0)|round(2) }}");
+    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.equitherm.targetDiffFactor|float(0)|round(3) }}");
     doc[FPSTR(HA_COMMAND_TOPIC)] = this->setSettingsTopic.c_str();
-    doc[FPSTR(HA_COMMAND_TEMPLATE)] = F("{\"equitherm\": {\"t_factor\" : {{ value }}}}");
+    doc[FPSTR(HA_COMMAND_TEMPLATE)] = F("{\"equitherm\": {\"targetDiffFactor\" : {{ value }}}}");
     doc[FPSTR(HA_MIN)] = 0;
     doc[FPSTR(HA_MAX)] = 10;
-    doc[FPSTR(HA_STEP)] = 0.01f;
+    doc[FPSTR(HA_STEP)] = 0.001f;
     doc[FPSTR(HA_MODE)] = FPSTR(HA_MODE_BOX);
     doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
     doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_NUMBER), F("equitherm_t_factor")).c_str(), doc);
+    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_NUMBER), F("equitherm_target_diff_factor")).c_str(), doc);
   }
 
 

src/MainTask.h

@@ -29,6 +29,7 @@ protected:
   enum class PumpStartReason {NONE, HEATING, ANTISTUCK};
 
   Blinker* blinker = nullptr;
+  unsigned long miscRunned = 0;
   unsigned long lastHeapInfo = 0;
   unsigned int minFreeHeap = 0;
   unsigned int minMaxFreeBlockHeap = 0;
@@ -42,6 +43,8 @@ protected:
   bool telnetStarted = false;
   bool emergencyDetected = false;
   unsigned long emergencyFlipTime = 0;
+  bool freezeDetected = false;
+  unsigned long freezeDetectedTime = 0;
 
   #if defined(ARDUINO_ARCH_ESP32)
   const char* getTaskName() override {
@@ -150,17 +153,16 @@ protected:
 
       Sensors::setConnectionStatusByType(Sensors::Type::MANUAL, false, false);
     }
-    this->yield();
 
-    this->emergency();
+    this->yield();
+    if (this->misc()) {
+      this->yield();
+    }
     this->ledStatus();
-    this->cascadeControl();
-    this->externalPump();
-    this->yield();
-
 
     // telnet
     if (this->telnetStarted) {
+      this->yield();
       telnetStream->loop();
       this->yield();
     }
@@ -179,14 +181,27 @@ protected:
 
     // heap info
     this->heap();
+  }
 
+  bool misc() {
+    if (millis() - this->miscRunned < 1000) {
+      return false;
+    }
 
-    // restart
+    // restart if required
     if (this->restartSignalReceived && millis() - this->restartSignalReceivedTime > 15000) {
       this->restartSignalReceived = false;
 
       ESP.restart();
     }
+
+    this->heating();
+    this->emergency();
+    this->cascadeControl();
+    this->externalPump();
+    this->miscRunned = millis();
+    
+    return true;
   }
 
   void heap() {
@@ -228,6 +243,65 @@ protected:
     }
   }
 
+  void heating() {
+    // freeze protection
+    if (!settings.heating.enabled) {
+      float lowTemp = 255.0f;
+      uint8_t availableSensors = 0;
+
+      if (Sensors::existsConnectedSensorsByPurpose(Sensors::Purpose::INDOOR_TEMP)) {
+        auto value = Sensors::getMeanValueByPurpose(Sensors::Purpose::INDOOR_TEMP, Sensors::ValueType::PRIMARY);
+        if (value < lowTemp) {
+          lowTemp = value;
+        }
+        
+        availableSensors++;
+      }
+
+      if (Sensors::existsConnectedSensorsByPurpose(Sensors::Purpose::HEATING_TEMP)) {
+        auto value = Sensors::getMeanValueByPurpose(Sensors::Purpose::HEATING_TEMP, Sensors::ValueType::PRIMARY);
+        if (value < lowTemp) {
+          lowTemp = value;
+        }
+        
+        availableSensors++;
+      }
+
+      if (Sensors::existsConnectedSensorsByPurpose(Sensors::Purpose::HEATING_RETURN_TEMP)) {
+        auto value = Sensors::getMeanValueByPurpose(Sensors::Purpose::HEATING_RETURN_TEMP, Sensors::ValueType::PRIMARY);
+        if (value < lowTemp) {
+          lowTemp = value;
+        }
+
+        availableSensors++;
+      }
+
+      if (availableSensors && lowTemp <= settings.heating.freezeProtection.lowTemp) {
+        if (!this->freezeDetected) {
+          this->freezeDetected = true;
+          this->freezeDetectedTime = millis();
+
+        } else if (millis() - this->freezeDetectedTime > (settings.heating.freezeProtection.thresholdTime * 1000)) {
+          this->freezeDetected = false;
+          settings.heating.enabled = true;
+          fsSettings.update();
+
+          Log.sinfoln(
+            FPSTR(L_MAIN),
+            F("Heating turned on by freeze protection, current low temp: %.2f, threshold: %hhu"),
+            lowTemp, settings.heating.freezeProtection.lowTemp
+          );
+        }
+
+      } else if (this->freezeDetected) {
+        this->freezeDetected = false;
+      }
+
+    } else if (this->freezeDetected) {
+      this->freezeDetected = false;
+    }
+  }
+
   void emergency() {
     // flags
     uint8_t emergencyFlags = 0b00000000;

src/MqttTask.h

@@ -502,9 +502,10 @@ protected:
 
     // equitherm
     this->haHelper->publishSwitchEquitherm();
-    this->haHelper->publishInputEquithermFactorN(false);
+    this->haHelper->publishInputEquithermSlope(false);
-    this->haHelper->publishInputEquithermFactorK(false);
+    this->haHelper->publishInputEquithermExponent(false);
-    this->haHelper->publishInputEquithermFactorT(false);
+    this->haHelper->publishInputEquithermShift(false);
+    this->haHelper->publishInputEquithermTargetDiffFactor(false);
 
     // states
     this->haHelper->publishStatusState();

src/OpenThermTask.h

@@ -169,12 +169,15 @@ protected:
 
     // Heating settings
     vars.master.heating.enabled = this->isReady()
-      && (settings.heating.enabled || vars.emergency.state) 
+      && settings.heating.enabled
       && vars.cascadeControl.input 
-      && !vars.master.heating.blocking;
+      && !vars.master.heating.blocking
+      && !vars.master.heating.overheat;
 
     // DHW settings
-    vars.master.dhw.enabled = settings.opentherm.options.dhwSupport && settings.dhw.enabled;
+    vars.master.dhw.enabled = settings.opentherm.options.dhwSupport 
+      && settings.dhw.enabled 
+      && !vars.master.dhw.overheat;
     vars.master.dhw.targetTemp = settings.dhw.target;
 
     // CH2 settings
@@ -205,6 +208,12 @@ protected:
       summerWinterMode = vars.master.heating.enabled == summerWinterMode;
     }
 
+    // DHW blocking
+    bool dhwBlocking = settings.opentherm.options.dhwBlocking;
+    if (settings.opentherm.options.dhwStateAsDhwBlocking) {
+      dhwBlocking = vars.master.dhw.enabled == dhwBlocking;
+    }
+
     unsigned long response = this->instance->setBoilerStatus(
       vars.master.heating.enabled,
       vars.master.dhw.enabled,
@@ -212,7 +221,7 @@ protected:
       settings.opentherm.options.nativeHeatingControl,
       vars.master.ch2.enabled,
       summerWinterMode,
-      settings.opentherm.options.dhwBlocking,
+      dhwBlocking,
       statusLb
     );
 
@@ -228,6 +237,7 @@ protected:
       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.ch2.active = CustomOpenTherm::isCh2Active(response);
       vars.slave.fault.active = CustomOpenTherm::isFault(response);
 
       if (!settings.opentherm.options.ignoreDiagState) {
@@ -238,9 +248,9 @@ protected:
       }
   
       Log.snoticeln(
-        FPSTR(L_OT), F("Received boiler status. Heating: %hhu; DHW: %hhu; flame: %hhu; cooling: %hhu; fault: %hhu; diag: %hhu"),
+        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.fault.active, vars.slave.diag.active
+        vars.slave.flame, vars.slave.cooling, vars.slave.ch2.active, vars.slave.fault.active, vars.slave.diag.active
       );
     }
 
@@ -1307,6 +1317,84 @@ protected:
         }
       }
     }
+
+
+    // Heating overheat control
+    if (settings.heating.overheatProtection.highTemp > 0 && settings.heating.overheatProtection.lowTemp > 0) {
+      float highTemp = convertTemp(
+        max({
+          vars.slave.heating.currentTemp,
+          vars.slave.heating.returnTemp,
+          vars.slave.heatExchangerTemp
+        }),
+        settings.opentherm.unitSystem,
+        settings.system.unitSystem
+      );
+
+      if (vars.master.heating.overheat) {
+        if ((float) settings.heating.overheatProtection.lowTemp - highTemp + 0.0001f >= 0.0f) {
+          vars.master.heating.overheat = false;
+
+          Log.sinfoln(
+            FPSTR(L_OT_HEATING), F("Overheating not detected. Current high temp: %.2f, threshold (low): %hhu"),
+            highTemp, settings.heating.overheatProtection.lowTemp
+          );
+        }
+
+      } else if (vars.slave.heating.active) {
+        if (highTemp - (float) settings.heating.overheatProtection.highTemp + 0.0001f >= 0.0f) {
+          vars.master.heating.overheat = true;
+
+          Log.swarningln(
+            FPSTR(L_OT_HEATING), F("Overheating detected! Current high temp: %.2f, threshold (high): %hhu"),
+            highTemp, settings.heating.overheatProtection.highTemp
+          );
+        }
+      }
+
+    } else if (vars.master.heating.overheat) {
+      vars.master.heating.overheat = false;
+    }
+
+    // DHW overheat control
+    if (settings.dhw.overheatProtection.highTemp > 0 && settings.dhw.overheatProtection.lowTemp > 0) {
+      float highTemp = convertTemp(
+        max({
+          vars.slave.heating.currentTemp,
+          vars.slave.heating.returnTemp,
+          vars.slave.heatExchangerTemp,
+          vars.slave.dhw.currentTemp,
+          vars.slave.dhw.currentTemp2,
+          vars.slave.dhw.returnTemp
+        }),
+        settings.opentherm.unitSystem,
+        settings.system.unitSystem
+      );
+
+      if (vars.master.dhw.overheat) {
+        if ((float) settings.dhw.overheatProtection.lowTemp - highTemp + 0.0001f >= 0.0f) {
+          vars.master.dhw.overheat = false;
+
+          Log.sinfoln(
+            FPSTR(L_OT_DHW), F("Overheating not detected. Current high temp: %.2f, threshold (low): %hhu"),
+            highTemp, settings.dhw.overheatProtection.lowTemp
+          );
+        }
+
+      } else if (vars.slave.dhw.active) {
+        if (highTemp - (float) settings.dhw.overheatProtection.highTemp + 0.0001f >= 0.0f) {
+          vars.master.dhw.overheat = true;
+
+          Log.swarningln(
+            FPSTR(L_OT_DHW), F("Overheating detected! Current high temp: %.2f, threshold (high): %hhu"),
+            highTemp, settings.dhw.overheatProtection.highTemp
+          );
+        }
+      }
+
+    } else if (vars.master.dhw.overheat) {
+      vars.master.dhw.overheat = false;
+    }
   }
 
   void initialize() {

src/RegulatorTask.h

@@ -1,7 +1,5 @@
-#include <Equitherm.h>
 #include <GyverPID.h>
 
-Equitherm etRegulator;
 GyverPID pidRegulator(0, 0, 0);
 
 
@@ -146,39 +144,32 @@ protected:
 
     // if use equitherm
     if (settings.equitherm.enabled) {
-      unsigned short minTemp = settings.heating.minTemp;
+      float tempDelta = settings.heating.target - vars.master.heating.outdoorTemp;
-      unsigned short maxTemp = settings.heating.maxTemp;
+      float maxPoint = settings.heating.target - (
-      float targetTemp = settings.heating.target;
+        settings.heating.maxTemp - settings.heating.target
-      float indoorTemp = vars.master.heating.indoorTemp;
+      ) / settings.equitherm.slope;
-      float outdoorTemp = vars.master.heating.outdoorTemp;
 
-      if (settings.system.unitSystem == UnitSystem::IMPERIAL) {
+      float sf = (settings.heating.maxTemp - settings.heating.target) / pow(
-        minTemp = f2c(minTemp);
+        settings.heating.target - maxPoint,
-        maxTemp = f2c(maxTemp);
+        1.0f / settings.equitherm.exponent
-        targetTemp = f2c(targetTemp);
+      );
-        indoorTemp = f2c(indoorTemp);
+      float etResult = settings.heating.target + settings.equitherm.shift + sf * (
-        outdoorTemp = f2c(outdoorTemp);
+        tempDelta >= 0 
+          ? pow(tempDelta, 1.0f / settings.equitherm.exponent) 
+          : -(pow(-(tempDelta), 1.0f / settings.equitherm.exponent))
+      );
+
+      // add diff
+      if (this->indoorSensorsConnected && !settings.pid.enabled && !settings.heating.turbo) {
+        etResult += constrain(
+          settings.heating.target - vars.master.heating.indoorTemp,
+          -3.0f,
+          3.0f
+        ) * settings.equitherm.targetDiffFactor;
       }
 
-      if (!this->indoorSensorsConnected || settings.pid.enabled) {
+      // limit
-        etRegulator.Kt = 0.0f;
+      etResult = constrain(etResult, settings.heating.minTemp, settings.heating.maxTemp);
-        etRegulator.indoorTemp = 0.0f;
-
-      } else {
-        etRegulator.Kt = settings.heating.turbo ? 0.0f : settings.equitherm.t_factor;
-        etRegulator.indoorTemp = indoorTemp;
-      }
-
-      etRegulator.setLimits(minTemp, maxTemp);
-      etRegulator.Kn = settings.equitherm.n_factor;
-      etRegulator.Kk = settings.equitherm.k_factor;
-      etRegulator.targetTemp = targetTemp;
-      etRegulator.outdoorTemp = outdoorTemp;
-      float etResult = etRegulator.getResult();
-
-      if (settings.system.unitSystem == UnitSystem::IMPERIAL) {
-        etResult = c2f(etResult);
-      }
 
       if (fabsf(prevEtResult - etResult) > 0.09f) {
         prevEtResult = etResult;

src/Sensors.h

@@ -138,7 +138,7 @@ public:
     }
 
     uint8_t amount = 0;
-    for (uint8_t id = 0; id < getMaxSensorId(); id++) {
+    for (uint8_t id = 0; id <= getMaxSensorId(); id++) {
       if (settings[id].type == type && (!onlyEnabled || settings[id].enabled)) {
         amount++;
       }
@@ -152,7 +152,7 @@ public:
       return 0;
     }
 
-    for (uint8_t id = 0; id < getMaxSensorId(); id++) {
+    for (uint8_t id = 0; id <= getMaxSensorId(); id++) {
       if (strcmp(settings[id].name, name) == 0) {
         return id;
       }
@@ -167,7 +167,7 @@ public:
     }
 
     String refObjectId;
-    for (uint8_t id = 0; id < getMaxSensorId(); id++) {
+    for (uint8_t id = 0; id <= getMaxSensorId(); id++) {
       Sensors::makeObjectId(refObjectId, settings[id].name);
       if (refObjectId.equals(objectId)) {
         return id;
@@ -247,7 +247,7 @@ public:
     uint8_t updated = 0;
     
     // read sensors data for current instance
-    for (uint8_t sensorId = 0; sensorId < getMaxSensorId(); sensorId++) {
+    for (uint8_t sensorId = 0; sensorId <= getMaxSensorId(); sensorId++) {
       auto& sSensor = settings[sensorId];
       
       // only target & valid sensors
@@ -311,7 +311,7 @@ public:
     uint8_t updated = 0;
     
     // read sensors data for current instance
-    for (uint8_t sensorId = 0; sensorId < getMaxSensorId(); sensorId++) {
+    for (uint8_t sensorId = 0; sensorId <= getMaxSensorId(); sensorId++) {
       auto& sSensor = settings[sensorId];
       
       // only target & valid sensors
@@ -340,7 +340,7 @@ public:
     float value = 0.0f;
     uint8_t amount = 0;
 
-    for (uint8_t id = 0; id < getMaxSensorId(); id++) {
+    for (uint8_t id = 0; id <= getMaxSensorId(); id++) {
       auto& sSensor = settings[id];
       auto& rSensor = results[id];
 
@@ -366,7 +366,7 @@ public:
       return 0;
     }
 
-    for (uint8_t id = 0; id < getMaxSensorId(); id++) {
+    for (uint8_t id = 0; id <= getMaxSensorId(); id++) {
       if (settings[id].purpose == purpose && results[id].connected) {
         return true;
       }

src/Settings.h

@@ -71,6 +71,7 @@ struct Settings {
       bool heatingToCh2 = false;
       bool dhwToCh2 = false;
       bool dhwBlocking = false;
+      bool dhwStateAsDhwBlocking = false;
       bool maxTempSyncWithTargetTemp = true;
       bool getMinMaxTemp = true;
       bool ignoreDiagState = false;
@@ -107,6 +108,16 @@ struct Settings {
     byte minTemp = DEFAULT_HEATING_MIN_TEMP;
     byte maxTemp = DEFAULT_HEATING_MAX_TEMP;
     uint8_t maxModulation = 100;
+
+    struct {
+      uint8_t highTemp = 95;
+      uint8_t lowTemp = 90;
+    } overheatProtection;
+
+    struct {
+      uint8_t lowTemp = 10;
+      unsigned short thresholdTime = 600;
+    } freezeProtection;
   } heating;
 
   struct {
@@ -115,6 +126,11 @@ struct Settings {
     byte minTemp = DEFAULT_DHW_MIN_TEMP;
     byte maxTemp = DEFAULT_DHW_MAX_TEMP;
     uint8_t maxModulation = 100;
+    
+    struct {
+      uint8_t highTemp = 95;
+      uint8_t lowTemp = 90;
+    } overheatProtection;
   } dhw;
 
   struct {
@@ -138,9 +154,10 @@ struct Settings {
 
   struct {
     bool enabled = false;
-    float n_factor = 0.7f;
+    float slope = 0.7f;
-    float k_factor = 3.0f;
+    float exponent = 1.3f;
-    float t_factor = 2.0f;
+    float shift = 0.0f;
+    float targetDiffFactor = 2.0f;
   } equitherm;
 
   struct {
@@ -279,6 +296,7 @@ struct Variables {
       bool blocking = false;
       bool enabled = false;
       bool indoorTempControl = false;
+      bool overheat = false;
       float setpointTemp = 0.0f;
       float targetTemp = 0.0f;
       float currentTemp = 0.0f;
@@ -291,6 +309,7 @@ struct Variables {
 
     struct {
       bool enabled = false;
+      bool overheat = false;
       float targetTemp = 0.0f;
       float currentTemp = 0.0f;
       float returnTemp = 0.0f;
@@ -390,6 +409,7 @@ struct Variables {
     } dhw;
 
     struct {
+      bool active = false;
       bool enabled = false;
       float targetTemp = 0.0f;
       float currentTemp = 0.0f;

src/strings.h

@@ -68,6 +68,7 @@ const char S_DATE[]                                 PROGMEM = "date";
 const char S_DEADBAND[]                             PROGMEM = "deadband";
 const char S_DHW[]                                  PROGMEM = "dhw";
 const char S_DHW_BLOCKING[]                         PROGMEM = "dhwBlocking";
+const char S_DHW_STATE_AS_DHW_BLOCKING[]            PROGMEM = "dhwStateAsDhwBlocking";
 const char S_DHW_SUPPORT[]                          PROGMEM = "dhwSupport";
 const char S_DHW_TO_CH2[]                           PROGMEM = "dhwToCh2";
 const char S_DIAG[]                                 PROGMEM = "diag";
@@ -80,9 +81,11 @@ const char S_ENABLED[]                              PROGMEM = "enabled";
 const char S_ENV[]                                  PROGMEM = "env";
 const char S_EPC[]                                  PROGMEM = "epc";
 const char S_EQUITHERM[]                            PROGMEM = "equitherm";
+const char S_EXPONENT[]                             PROGMEM = "exponent";
 const char S_EXTERNAL_PUMP[]                        PROGMEM = "externalPump";
 const char S_FACTOR[]                               PROGMEM = "factor";
 const char S_FAULT[]                                PROGMEM = "fault";
+const char S_FREEZE_PROTECTION[]                    PROGMEM = "freezeProtection";
 const char S_FILTERING[]                            PROGMEM = "filtering";
 const char S_FILTERING_FACTOR[]                     PROGMEM = "filteringFactor";
 const char S_FLAGS[]                                PROGMEM = "flags";
@@ -98,6 +101,7 @@ const char S_HEATING[]                              PROGMEM = "heating";
 const char S_HEATING_TO_CH2[]                       PROGMEM = "heatingToCh2";
 const char S_HEATING_STATE_TO_SUMMER_WINTER_MODE[]  PROGMEM = "heatingStateToSummerWinterMode";
 const char S_HIDDEN[]                               PROGMEM = "hidden";
+const char S_HIGH_TEMP[]                            PROGMEM = "highTemp";
 const char S_HOME_ASSISTANT_DISCOVERY[]             PROGMEM = "homeAssistantDiscovery";
 const char S_HOSTNAME[]                             PROGMEM = "hostname";
 const char S_HUMIDITY[]                             PROGMEM = "humidity";
@@ -114,9 +118,9 @@ const char S_INVERT_STATE[]                         PROGMEM = "invertState";
 const char S_IP[]                                   PROGMEM = "ip";
 const char S_I_FACTOR[]                             PROGMEM = "i_factor";
 const char S_I_MULTIPLIER[]                         PROGMEM = "i_multiplier";
-const char S_K_FACTOR[]                             PROGMEM = "k_factor";
 const char S_LOGIN[]                                PROGMEM = "login";
 const char S_LOG_LEVEL[]                            PROGMEM = "logLevel";
+const char S_LOW_TEMP[]                             PROGMEM = "lowTemp";
 const char S_MAC[]                                  PROGMEM = "mac";
 const char S_MASTER[]                               PROGMEM = "master";
 const char S_MAX[]                                  PROGMEM = "max";
@@ -139,7 +143,6 @@ const char S_NAME[]                                 PROGMEM = "name";
 const char S_NATIVE_HEATING_CONTROL[]               PROGMEM = "nativeHeatingControl";
 const char S_NETWORK[]                              PROGMEM = "network";
 const char S_NTP[]                                  PROGMEM = "ntp";
-const char S_N_FACTOR[]                             PROGMEM = "n_factor";
 const char S_OFFSET[]                               PROGMEM = "offset";
 const char S_ON_ENABLED_HEATING[]                   PROGMEM = "onEnabledHeating";
 const char S_ON_FAULT[]                             PROGMEM = "onFault";
@@ -149,6 +152,8 @@ const char S_OPTIONS[]                              PROGMEM = "options";
 const char S_OUTDOOR_TEMP[]                         PROGMEM = "outdoorTemp";
 const char S_OUT_GPIO[]                             PROGMEM = "outGpio";
 const char S_OUTPUT[]                               PROGMEM = "output";
+const char S_OVERHEAT[]                             PROGMEM = "overheat";
+const char S_OVERHEAT_PROTECTION[]                  PROGMEM = "overheatProtection";
 const char S_PASSWORD[]                             PROGMEM = "password";
 const char S_PID[]                                  PROGMEM = "pid";
 const char S_PORT[]                                 PROGMEM = "port";
@@ -176,9 +181,11 @@ const char S_SERIAL[]                               PROGMEM = "serial";
 const char S_SERVER[]                               PROGMEM = "server";
 const char S_SETTINGS[]                             PROGMEM = "settings";
 const char S_SET_DATE_AND_TIME[]                    PROGMEM = "setDateAndTime";
+const char S_SHIFT[]                                PROGMEM = "shift";
 const char S_SIGNAL_QUALITY[]                       PROGMEM = "signalQuality";
 const char S_SIZE[]                                 PROGMEM = "size";
 const char S_SLAVE[]                                PROGMEM = "slave";
+const char S_SLOPE[]                                PROGMEM = "slope";
 const char S_SSID[]                                 PROGMEM = "ssid";
 const char S_STA[]                                  PROGMEM = "sta";
 const char S_STATE[]                                PROGMEM = "state";
@@ -189,6 +196,7 @@ 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_DIFF_FACTOR[]                   PROGMEM = "targetDiffFactor";
 const char S_TARGET_TEMP[]                          PROGMEM = "targetTemp";
 const char S_TELNET[]                               PROGMEM = "telnet";
 const char S_TEMPERATURE[]                          PROGMEM = "temperature";
@@ -201,7 +209,6 @@ const char S_TRESHOLD_TIME[]                        PROGMEM = "tresholdTime";
 const char S_TURBO[]                                PROGMEM = "turbo";
 const char S_TURBO_FACTOR[]                         PROGMEM = "turboFactor";
 const char S_TYPE[]                                 PROGMEM = "type";
-const char S_T_FACTOR[]                             PROGMEM = "t_factor";
 const char S_UNIT_SYSTEM[]                          PROGMEM = "unitSystem";
 const char S_UPTIME[]                               PROGMEM = "uptime";
 const char S_USE[]                                  PROGMEM = "use";

src/utils.h

@@ -461,6 +461,7 @@ void settingsToJson(const Settings& src, JsonVariant dst, bool safe = false) {
     otOptions[FPSTR(S_HEATING_TO_CH2)] = src.opentherm.options.heatingToCh2;
     otOptions[FPSTR(S_DHW_TO_CH2)] = src.opentherm.options.dhwToCh2;
     otOptions[FPSTR(S_DHW_BLOCKING)] = src.opentherm.options.dhwBlocking;
+    otOptions[FPSTR(S_DHW_STATE_AS_DHW_BLOCKING)] = src.opentherm.options.dhwStateAsDhwBlocking;
     otOptions[FPSTR(S_MAX_TEMP_SYNC_WITH_TARGET_TEMP)] = src.opentherm.options.maxTempSyncWithTargetTemp;
     otOptions[FPSTR(S_GET_MIN_MAX_TEMP)] = src.opentherm.options.getMinMaxTemp;
     otOptions[FPSTR(S_IGNORE_DIAG_STATE)] = src.opentherm.options.ignoreDiagState;
@@ -495,6 +496,14 @@ void settingsToJson(const Settings& src, JsonVariant dst, bool safe = false) {
   heating[FPSTR(S_MAX_TEMP)] = src.heating.maxTemp;
   heating[FPSTR(S_MAX_MODULATION)] = src.heating.maxModulation;
 
+  auto heatingOverheatProtection = heating[FPSTR(S_OVERHEAT_PROTECTION)].to<JsonObject>();
+  heatingOverheatProtection[FPSTR(S_HIGH_TEMP)] = src.heating.overheatProtection.highTemp;
+  heatingOverheatProtection[FPSTR(S_LOW_TEMP)] = src.heating.overheatProtection.lowTemp;
+
+  auto freezeProtection = heating[FPSTR(S_FREEZE_PROTECTION)].to<JsonObject>();
+  freezeProtection[FPSTR(S_LOW_TEMP)] = src.heating.freezeProtection.lowTemp;
+  freezeProtection[FPSTR(S_THRESHOLD_TIME)] = src.heating.freezeProtection.thresholdTime;
+
   auto dhw = dst[FPSTR(S_DHW)].to<JsonObject>();
   dhw[FPSTR(S_ENABLED)] = src.dhw.enabled;
   dhw[FPSTR(S_TARGET)] = roundf(src.dhw.target, 1);
@@ -502,11 +511,16 @@ void settingsToJson(const Settings& src, JsonVariant dst, bool safe = false) {
   dhw[FPSTR(S_MAX_TEMP)] = src.dhw.maxTemp;
   dhw[FPSTR(S_MAX_MODULATION)] = src.dhw.maxModulation;
 
+  auto dhwOverheatProtection = dhw[FPSTR(S_OVERHEAT_PROTECTION)].to<JsonObject>();
+  dhwOverheatProtection[FPSTR(S_HIGH_TEMP)] = src.dhw.overheatProtection.highTemp;
+  dhwOverheatProtection[FPSTR(S_LOW_TEMP)] = src.dhw.overheatProtection.lowTemp;
+
   auto equitherm = dst[FPSTR(S_EQUITHERM)].to<JsonObject>();
   equitherm[FPSTR(S_ENABLED)] = src.equitherm.enabled;
-  equitherm[FPSTR(S_N_FACTOR)] = roundf(src.equitherm.n_factor, 3);
+  equitherm[FPSTR(S_SLOPE)] = roundf(src.equitherm.slope, 3);
-  equitherm[FPSTR(S_K_FACTOR)] = roundf(src.equitherm.k_factor, 3);
+  equitherm[FPSTR(S_EXPONENT)] = roundf(src.equitherm.exponent, 3);
-  equitherm[FPSTR(S_T_FACTOR)] = roundf(src.equitherm.t_factor, 3);
+  equitherm[FPSTR(S_SHIFT)] = roundf(src.equitherm.shift, 2);
+  equitherm[FPSTR(S_TARGET_DIFF_FACTOR)] = roundf(src.equitherm.targetDiffFactor, 3);
 
   auto pid = dst[FPSTR(S_PID)].to<JsonObject>();
   pid[FPSTR(S_ENABLED)] = src.pid.enabled;
@@ -923,6 +937,15 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
       }
     }
 
+    if (src[FPSTR(S_OPENTHERM)][FPSTR(S_OPTIONS)][FPSTR(S_DHW_STATE_AS_DHW_BLOCKING)].is<bool>()) {
+      bool value = src[FPSTR(S_OPENTHERM)][FPSTR(S_OPTIONS)][FPSTR(S_DHW_STATE_AS_DHW_BLOCKING)].as<bool>();
+
+      if (value != dst.opentherm.options.dhwStateAsDhwBlocking) {
+        dst.opentherm.options.dhwStateAsDhwBlocking = value;
+        changed = true;
+      }
+    }
+
     if (src[FPSTR(S_OPENTHERM)][FPSTR(S_OPTIONS)][FPSTR(S_MAX_TEMP_SYNC_WITH_TARGET_TEMP)].is<bool>()) {
       bool value = src[FPSTR(S_OPENTHERM)][FPSTR(S_OPTIONS)][FPSTR(S_MAX_TEMP_SYNC_WITH_TARGET_TEMP)].as<bool>();
 
@@ -1104,29 +1127,38 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
     }
   }
 
-  if (!src[FPSTR(S_EQUITHERM)][FPSTR(S_N_FACTOR)].isNull()) {
+  if (!src[FPSTR(S_EQUITHERM)][FPSTR(S_SLOPE)].isNull()) {
-    float value = src[FPSTR(S_EQUITHERM)][FPSTR(S_N_FACTOR)].as<float>();
+    float value = src[FPSTR(S_EQUITHERM)][FPSTR(S_SLOPE)].as<float>();
 
-    if (value > 0 && value <= 10 && fabsf(value - dst.equitherm.n_factor) > 0.0001f) {
+    if (value > 0.0f && value <= 10.0f && fabsf(value - dst.equitherm.slope) > 0.0001f) {
-      dst.equitherm.n_factor = roundf(value, 3);
+      dst.equitherm.slope = roundf(value, 3);
       changed = true;
     }
   }
 
-  if (!src[FPSTR(S_EQUITHERM)][FPSTR(S_K_FACTOR)].isNull()) {
+  if (!src[FPSTR(S_EQUITHERM)][FPSTR(S_EXPONENT)].isNull()) {
-    float value = src[FPSTR(S_EQUITHERM)][FPSTR(S_K_FACTOR)].as<float>();
+    float value = src[FPSTR(S_EQUITHERM)][FPSTR(S_EXPONENT)].as<float>();
 
-    if (value >= 0 && value <= 10 && fabsf(value - dst.equitherm.k_factor) > 0.0001f) {
+    if (value > 0.0f && value <= 2.0f && fabsf(value - dst.equitherm.exponent) > 0.0001f) {
-      dst.equitherm.k_factor = roundf(value, 3);
+      dst.equitherm.exponent = roundf(value, 3);
       changed = true;
     }
   }
 
-  if (!src[FPSTR(S_EQUITHERM)][FPSTR(S_T_FACTOR)].isNull()) {
+  if (!src[FPSTR(S_EQUITHERM)][FPSTR(S_SHIFT)].isNull()) {
-    float value = src[FPSTR(S_EQUITHERM)][FPSTR(S_T_FACTOR)].as<float>();
+    float value = src[FPSTR(S_EQUITHERM)][FPSTR(S_SHIFT)].as<float>();
 
-    if (value >= 0 && value <= 10 && fabsf(value - dst.equitherm.t_factor) > 0.0001f) {
+    if (value >= -15.0f && value <= 15.0f && fabsf(value - dst.equitherm.shift) > 0.0001f) {
-      dst.equitherm.t_factor = roundf(value, 3);
+      dst.equitherm.shift = roundf(value, 2);
+      changed = true;
+    }
+  }
+
+  if (!src[FPSTR(S_EQUITHERM)][FPSTR(S_TARGET_DIFF_FACTOR)].isNull()) {
+    float value = src[FPSTR(S_EQUITHERM)][FPSTR(S_TARGET_DIFF_FACTOR)].as<float>();
+
+    if (value >= 0.0f && value <= 10.0f && fabsf(value - dst.equitherm.targetDiffFactor) > 0.0001f) {
+      dst.equitherm.targetDiffFactor = roundf(value, 3);
       changed = true;
     }
   }
@@ -1332,6 +1364,49 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
     }
   }
 
+  if (!src[FPSTR(S_HEATING)][FPSTR(S_OVERHEAT_PROTECTION)][FPSTR(S_HIGH_TEMP)].isNull()) {
+    unsigned char value = src[FPSTR(S_HEATING)][FPSTR(S_OVERHEAT_PROTECTION)][FPSTR(S_HIGH_TEMP)].as<unsigned char>();
+
+    if (isValidTemp(value, dst.system.unitSystem, 0.0f, 100.0f) && value != dst.heating.overheatProtection.highTemp) {
+      dst.heating.overheatProtection.highTemp = value;
+      changed = true;
+    }
+  }
+
+  if (!src[FPSTR(S_HEATING)][FPSTR(S_OVERHEAT_PROTECTION)][FPSTR(S_LOW_TEMP)].isNull()) {
+    unsigned char value = src[FPSTR(S_HEATING)][FPSTR(S_OVERHEAT_PROTECTION)][FPSTR(S_LOW_TEMP)].as<unsigned char>();
+
+    if (isValidTemp(value, dst.system.unitSystem, 0.0f, 99.0f) && value != dst.heating.overheatProtection.lowTemp) {
+      dst.heating.overheatProtection.lowTemp = value;
+      changed = true;
+    }
+  }
+
+  if (dst.heating.overheatProtection.highTemp < dst.heating.overheatProtection.lowTemp) {
+    dst.heating.overheatProtection.highTemp = dst.heating.overheatProtection.lowTemp;
+    changed = true;
+  }
+
+  if (!src[FPSTR(S_HEATING)][FPSTR(S_FREEZE_PROTECTION)][FPSTR(S_LOW_TEMP)].isNull()) {
+    unsigned short value = src[FPSTR(S_HEATING)][FPSTR(S_FREEZE_PROTECTION)][FPSTR(S_LOW_TEMP)].as<uint8_t>();
+
+    if (isValidTemp(value, dst.system.unitSystem, 1, 30) && value != dst.heating.freezeProtection.lowTemp) {
+      dst.heating.freezeProtection.lowTemp = value;
+      changed = true;
+    }
+  }
+
+  if (!src[FPSTR(S_HEATING)][FPSTR(S_FREEZE_PROTECTION)][FPSTR(S_THRESHOLD_TIME)].isNull()) {
+    unsigned short value = src[FPSTR(S_HEATING)][FPSTR(S_FREEZE_PROTECTION)][FPSTR(S_THRESHOLD_TIME)].as<unsigned short>();
+
+    if (value >= 30 && value <= 1800) {
+      if (value != dst.heating.freezeProtection.thresholdTime) {
+        dst.heating.freezeProtection.thresholdTime = value;
+        changed = true;
+      }
+    }
+  }
+
 
   // dhw
   if (src[FPSTR(S_DHW)][FPSTR(S_ENABLED)].is<bool>()) {
@@ -1375,6 +1450,29 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
     }
   }
 
+  if (!src[FPSTR(S_DHW)][FPSTR(S_OVERHEAT_PROTECTION)][FPSTR(S_HIGH_TEMP)].isNull()) {
+    unsigned char value = src[FPSTR(S_DHW)][FPSTR(S_OVERHEAT_PROTECTION)][FPSTR(S_HIGH_TEMP)].as<unsigned char>();
+
+    if (isValidTemp(value, dst.system.unitSystem, 0.0f, 100.0f) && value != dst.dhw.overheatProtection.highTemp) {
+      dst.dhw.overheatProtection.highTemp = value;
+      changed = true;
+    }
+  }
+
+  if (!src[FPSTR(S_DHW)][FPSTR(S_OVERHEAT_PROTECTION)][FPSTR(S_LOW_TEMP)].isNull()) {
+    unsigned char value = src[FPSTR(S_DHW)][FPSTR(S_OVERHEAT_PROTECTION)][FPSTR(S_LOW_TEMP)].as<unsigned char>();
+
+    if (isValidTemp(value, dst.system.unitSystem, 0.0f, 99.0f) && value != dst.dhw.overheatProtection.lowTemp) {
+      dst.dhw.overheatProtection.lowTemp = value;
+      changed = true;
+    }
+  }
+
+  if (dst.dhw.overheatProtection.highTemp < dst.dhw.overheatProtection.lowTemp) {
+    dst.dhw.overheatProtection.highTemp = dst.dhw.overheatProtection.lowTemp;
+    changed = true;
+  }
+
 
   if (!safe) {
     // external pump
@@ -2006,6 +2104,7 @@ void varsToJson(const Variables& src, JsonVariant dst) {
   mHeating[FPSTR(S_ENABLED)] = src.master.heating.enabled;
   mHeating[FPSTR(S_BLOCKING)] = src.master.heating.blocking;
   mHeating[FPSTR(S_INDOOR_TEMP_CONTROL)] = src.master.heating.indoorTempControl;
+  mHeating[FPSTR(S_OVERHEAT)] = src.master.heating.overheat;
   mHeating[FPSTR(S_SETPOINT_TEMP)] = roundf(src.master.heating.setpointTemp, 2);
   mHeating[FPSTR(S_TARGET_TEMP)] = roundf(src.master.heating.targetTemp, 2);
   mHeating[FPSTR(S_CURRENT_TEMP)] = roundf(src.master.heating.currentTemp, 2);
@@ -2017,6 +2116,7 @@ void varsToJson(const Variables& src, JsonVariant dst) {
 
   auto mDhw = master[FPSTR(S_DHW)].to<JsonObject>();
   mDhw[FPSTR(S_ENABLED)] = src.master.dhw.enabled;
+  mDhw[FPSTR(S_OVERHEAT)] = src.master.dhw.overheat;
   mDhw[FPSTR(S_TARGET_TEMP)] = roundf(src.master.dhw.targetTemp, 2);
   mDhw[FPSTR(S_CURRENT_TEMP)] = roundf(src.master.dhw.currentTemp, 2);
   mDhw[FPSTR(S_RETURN_TEMP)] = roundf(src.master.dhw.returnTemp, 2);

src_data/locales/en.json

@@ -117,6 +117,7 @@
         
         "mHeatEnabled": "Heating enabled",
         "mHeatBlocking": "Heating blocked",
+        "mHeatOverheat": "Heating overheat",
         "sHeatActive": "Heating active",
         "mHeatSetpointTemp": "Heating setpoint temp",
         "mHeatTargetTemp": "Heating target temp",
@@ -126,6 +127,7 @@
         "mHeatOutdoorTemp": "Heating, outdoor temp",
 
         "mDhwEnabled": "DHW enabled",
+        "mDhwOverheat": "DHW overheat",
         "sDhwActive": "DHW active",
         "mDhwTargetTemp": "DHW target temp",
         "mDhwCurrTemp": "DHW current temp",
@@ -302,6 +304,24 @@
         "max": "Maximum temperature"
       },
       "maxModulation": "Max modulation level",
+      "ohProtection": {
+        "title": "Overheating protection",
+        "desc": "<b>Note:</b> This feature can be useful if the built-in boiler overheating protection does not work or does not work correctly and the heat carrier boils. To disable, set 0 as <b>high</b> and <b>low</b> temperature.",
+        "highTemp": {
+          "title": "High temperature threshold",
+          "note": "Threshold at which the burner will be forcibly switched off"
+        },
+        "lowTemp": {
+          "title": "Low temperature threshold",
+          "note": "Threshold at which the burner can be turned on again"
+        }
+      },
+      "freezeProtection": {
+        "title": "Freeze protection",
+        "desc": "Heating will be forced to turn on if the heat carrier or indoor temperature drops below <b>Low temperature</b> during <b>Waiting time</b>.",
+        "lowTemp": "Low temperature threshold",
+        "thresholdTime": "Waiting time <small>(sec)</small>"
+      },
 
       "portal": {
         "login": "Login",
@@ -350,11 +370,26 @@
       },
 
       "equitherm": {
-        "n": "N factor",
+        "slope": {
-        "k": "K factor",
+          "title": "Slope",
-        "t": {
+          "note": "Heat loss compensation. Main tuning parameter."
+        },
+        "exponent": {
+          "title": "Exponent",
+          "note": "Radiator efficiency.  Typical values: 1.1 - Floor heating, 1.2 - Cast iron, 1.3 - Panel radiators, 1.4 - Convectors."
+        },
+        "shift": {
+          "title": "Shift",
+          "note": "Compensates for additional heat losses (e.g., in pipes) or extra heat sources."
+        },
+        "targetDiffFactor": {
           "title": "T factor",
           "note": "Not used if PID is enabled"
+        },
+        "chart": {
+          "targetTemp": "Target indoor temperature",
+          "setpointTemp": "Heat carrier temperature",
+          "outdoorTemp": "Outdoor temperature"
         }
       },
 
@@ -395,7 +430,8 @@
         },
 
         "options": {
-          "desc": "Options",
+          "title": "Options (additional settings)",
+          "desc": "Options can change the logic of the boiler. Not all options are documented in the protocol, so the same option can have different effects on different boilers.<br /><b>Note:</b> There is no need to change anything if everything works well.",
           "dhwSupport": "DHW support",
           "coolingSupport": "Cooling support",
           "summerWinterMode": "Summer/winter mode",
@@ -404,6 +440,7 @@
           "heatingToCh2": "Duplicate heating to CH2",
           "dhwToCh2": "Duplicate DHW to CH2",
           "dhwBlocking": "DHW blocking",
+          "dhwStateAsDhwBlocking": "DHW state as DHW blocking",
           "maxTempSyncWithTargetTemp": "Sync max heating temp with target temp",
           "getMinMaxTemp": "Get min/max temp from boiler",
           "ignoreDiagState": "Ignore diag state",

src_data/locales/it.json

@@ -117,6 +117,7 @@
         
         "mHeatEnabled": "Riscaldamento attivato",
         "mHeatBlocking": "Riscaldamento bloccato",
+        "mHeatOverheat": "Riscaldamento surriscaldamento",
         "sHeatActive": "Riscaldamento attivo",
         "mHeatSetpointTemp": "Temp riscaldamento impostato",
         "mHeatTargetTemp": "Target Temp caldaia",
@@ -126,6 +127,7 @@
         "mHeatOutdoorTemp": "Riscaldamento, temp esterna",
 
         "mDhwEnabled": "ACS attivata",
+        "mDhwOverheat": "ACS surriscaldamento",
         "sDhwActive": "ACS attiva",
         "mDhwTargetTemp": "ACS temp impostata",
         "mDhwCurrTemp": "ACS temp attuale",
@@ -302,6 +304,24 @@
         "max": "Temperatura massima"
       },
       "maxModulation": "Max livello modulazione",
+      "ohProtection": {
+        "title": "Protezione contro il surriscaldamento",
+        "desc": "<b>Nota:</b> questa funzione può essere utile se la protezione contro il surriscaldamento integrata nella caldaia non funziona o non funziona correttamente e il fluido termovettore bolle. Per disattivarla, impostare 0 come temperatura <b>alta</b> e <b>bassa</b>.",
+        "highTemp": {
+          "title": "Soglia di temperatura alta",
+          "note": "Soglia alla quale il bruciatore verrà spento forzatamente"
+        },
+        "lowTemp": {
+          "title": "Soglia di temperatura bassa",
+          "note": "Soglia alla quale il bruciatore può essere riacceso"
+        }
+      },
+      "freezeProtection": {
+        "title": "Protezione antigelo",
+        "desc": "Il riscaldamento verrà attivato forzatamente se la temperatura del vettore di calore o interna scende al di sotto della <b>temperatura minima</b> durante il <b>tempo di attesa</b>.",
+        "lowTemp": "Soglia di temperatura minima",
+        "thresholdTime": "Tempo di attesa <small>(sec)</small>"
+      },
 
       "portal": {
         "login": "Login",
@@ -350,11 +370,26 @@
       },
 
       "equitherm": {
-        "n": "Fattore N",
+        "slope": {
-        "k": "Fattore K",
+          "title": "Pendenza",
-        "t": {
+          "note": "Compensazione delle perdite di calore. Principale parametro di regolazione."
+        },
+        "exponent": {
+          "title": "Esponente",
+          "note": "Efficienza del radiatore. Valori tipici: 1.1 - Riscaldamento a pavimento, 1.2 - Radiatori in ghisa, 1.3 - Radiatori a pannelli, 1.4 - Convetttori."
+        },
+        "shift": {
+          "title": "Spostare",
+          "note": "Compensa le perdite di calore aggiuntive (ad esempio, nelle tubature) o fonti di calore extra."
+        },
+        "targetDiffFactor": {
           "title": "Fattore T",
           "note": "Non usato se PID è attivato"
+        },
+        "chart": {
+          "targetTemp": "Temperatura interna target",
+          "setpointTemp": "Temperatura del portatore di calore",
+          "outdoorTemp": "Temperatura esterna"
         }
       },
 
@@ -395,7 +430,8 @@
         },
 
         "options": {
-          "desc": "Opzioni",
+          "title": "Opzioni (impostazioni aggiuntive)",
+          "desc": "Le opzioni possono modificare la logica della caldaia. Non tutte le opzioni sono documentate nel protocollo, quindi la stessa opzione può avere effetti diversi su caldaie diverse.<br /><b>Nota:</b> Non è necessario modificare nulla se tutto funziona correttamente.",
           "dhwSupport": "Supporto ACS",
           "coolingSupport": "Supporto rafferscamento",
           "summerWinterMode": "Modalità Estate/inverno",
@@ -404,6 +440,7 @@
           "heatingToCh2": "Riproduci riscaldamento su CH2",
           "dhwToCh2": "Riproduci ACS su CH2",
           "dhwBlocking": "Bloccare ACS",
+          "dhwStateAsDhwBlocking": "Stato ACS come bloccare ACS",
           "maxTempSyncWithTargetTemp": "Sincronizza la temperatura massima di riscaldamento con la temperatura target",
           "getMinMaxTemp": "Prendi temp min/max dalla caldaia",
           "ignoreDiagState": "Ignora lo stato diagnostico",

src_data/locales/ru.json

@@ -117,6 +117,7 @@
         
         "mHeatEnabled": "Отопление",
         "mHeatBlocking": "Блокировка отопления",
+        "mHeatOverheat": "Отопление, перегрев",
         "sHeatActive": "Активность отопления",
         "mHeatSetpointTemp": "Отопление, уставка",
         "mHeatTargetTemp": "Отопление, целевая температура",
@@ -126,6 +127,7 @@
         "mHeatOutdoorTemp": "Отопление, наружная темп.",
 
         "mDhwEnabled": "ГВС",
+        "mDhwOverheat": "ГВС, перегрев",
         "sDhwActive": "Активность ГВС",
         "mDhwTargetTemp": "ГВС, целевая температура",
         "mDhwCurrTemp": "ГВС, текущая температура",
@@ -302,6 +304,24 @@
         "max": "Макс. температура"
       },
       "maxModulation": "Макс. уровень модуляции",
+      "ohProtection": {
+        "title": "Защита от перегрева",
+        "desc": "<b>Примечание:</b> Эта функция может быть полезна, если встроенная защита от перегрева котла не срабатывает или срабатывает некорректно и теплоноситель закипает. Для отключения установите 0 в качестве <b>верхнего</b> и <b>нижнего</b> порога температуры.",
+        "highTemp": {
+          "title": "Верхний порог температуры",
+          "note": "Порог, при котором горелка будет принудительно отключена"
+        },
+        "lowTemp": {
+          "title": "Нижний порог температуры",
+          "note": "Порог, при котором горелка может быть включена снова"
+        }
+      },
+      "freezeProtection": {
+        "title": "Защита от замерзания",
+        "desc": "Отопление будет принудительно включено, если темп. теплоносителя или внутренняя темп. опустится ниже <b>нижнего порога</b> в течение <b>времени ожидания</b>.",
+        "lowTemp": "Нижний порог температуры",
+        "thresholdTime": "Время ожидания <small>(сек)</small>"
+      },
 
       "portal": {
         "login": "Логин",
@@ -350,11 +370,26 @@
       },
 
       "equitherm": {
-        "n": "Коэффициент N",
+        "slope": {
-        "k": "Коэффициент K",
+          "title": "Наклон",
-        "t": {
+          "note": "Компенсация теплопотерь. Основной параметр настройки."
+        },
+        "exponent": {
+          "title": "Экспонента",
+          "note": "Эффективность радиатора. Типичные значения: 1.1 - Тёплый пол, 1.2 - Чугунные радиаторы, 1.3 - Панельные радиаторы, 1.4 - Конвекторы."
+        },
+        "shift": {
+          "title": "Смещение",
+          "note": "Компенсирует дополнительные теплопотери (например, в трубах) или дополнительные источники тепла."
+        },
+        "targetDiffFactor": {
           "title": "Коэффициент T",
           "note": "Не используется, если ПИД включен"
+        },
+        "chart": {
+          "targetTemp": "Целевая внутренняя температура",
+          "setpointTemp": "Температура теплоносителя",
+          "outdoorTemp": "Наружная температура"
         }
       },
 
@@ -395,7 +430,8 @@
         },
 
         "options": {
-          "desc": "Опции",
+          "title": "Опции (дополнительные настройки)",
+          "desc": "Опции могут менять логику работы котла. Не все опции задокументированы в протоколе, поэтому одна и та же опция может иметь разный эффект на разных котлах.<br /><b>Примечание:</b> Нет необходимости что-то менять, если всё работает хорошо.",
           "dhwSupport": "Поддержка ГВС",
           "coolingSupport": "Поддержка охлаждения",
           "summerWinterMode": "Летний/зимний режим",
@@ -404,6 +440,7 @@
           "heatingToCh2": "Дублировать параметры отопления в канал 2",
           "dhwToCh2": "Дублировать параметры ГВС в канал 2",
           "dhwBlocking": "DHW blocking",
+          "dhwStateAsDhwBlocking": "DHW blocking в качестве состояния ГВС",
           "maxTempSyncWithTargetTemp": "Синхронизировать макс. темп. отопления с целевой темп.",
           "getMinMaxTemp": "Получать мин. и макс. температуру от котла",
           "ignoreDiagState": "Игнорировать состояние диагностики",

src_data/pages/dashboard.html

@@ -184,6 +184,10 @@
                   <th scope="row" data-i18n>dashboard.states.mHeatBlocking</th>
                   <td><i class="mHeatBlocking"></i></td>
                 </tr>
+                <tr>
+                  <th scope="row" data-i18n>dashboard.states.mHeatOverheat</th>
+                  <td><i class="mHeatOverheat"></i></td>
+                </tr>
                 <tr>
                   <th scope="row" data-i18n>dashboard.states.sHeatActive</th>
                   <td><i class="sHeatActive"></i></td>
@@ -218,6 +222,10 @@
                   <th scope="row" data-i18n>dashboard.states.mDhwEnabled</th>
                   <td><i class="mDhwEnabled"></i></td>
                 </tr>
+                <tr>
+                  <th scope="row" data-i18n>dashboard.states.mDhwOverheat</th>
+                  <td><i class="mDhwOverheat"></i></td>
+                </tr>
                 <tr>
                   <th scope="row" data-i18n>dashboard.states.sDhwActive</th>
                   <td><i class="sDhwActive"></i></td>
@@ -611,6 +619,11 @@
               result.master.heating.blocking ? "red" : "green"
             );
             setState('.mHeatIndoorTempControl', result.master.heating.indoorTempControl);
+            setStatus(
+              '.mHeatOverheat',
+              result.master.heating.overheat ? "success" : "error",
+              result.master.heating.overheat ? "red" : "green"
+            );
             setValue('.mHeatSetpointTemp', result.master.heating.setpointTemp);
             setValue('.mHeatTargetTemp', result.master.heating.targetTemp);
             setValue('.mHeatCurrTemp', result.master.heating.currentTemp);
@@ -621,6 +634,11 @@
             setValue('.mHeatMaxTemp', result.master.heating.maxTemp);
 
             setState('.mDhwEnabled', result.master.dhw.enabled);
+            setStatus(
+              '.mDhwOverheat',
+              result.master.dhw.overheat ? "success" : "error",
+              result.master.dhw.overheat ? "red" : "green"
+            );
             setValue('.mDhwTargetTemp', result.master.dhw.targetTemp);
             setValue('.mDhwCurrTemp', result.master.dhw.currentTemp);
             setValue('.mDhwRetTemp', result.master.dhw.returnTemp);

src_data/pages/sensors.html

@@ -239,7 +239,9 @@
               setCheckboxValue("[name='filtering']", data.filtering, sensorForm);
               setInputValue("[name='filteringFactor']", data.filteringFactor, {}, sensorForm);
 
-              sensorForm.querySelector("[name='type']").dispatchEvent(new Event("change"));
+              setTimeout(() => {
+                sensorForm.querySelector("[name='type']").dispatchEvent(new Event("change"));
+              }, 10);
 
               setBusy(".form-busy", "form", false, sensorNode);
             };

src_data/pages/settings.html

@@ -207,6 +207,50 @@
                 <input type="number" inputmode="numeric" name="heating[maxModulation]" min="1" max="100" step="1" required>
               </label>
 
+              <hr />
+
+              <details>
+                <summary><b data-i18n>settings.ohProtection.title</b></summary>
+
+                <div class="grid">
+                  <label>
+                    <span data-i18n>settings.ohProtection.highTemp.title</span>
+                    <input type="number" inputmode="numeric" name="heating[overheatProtection][highTemp]" min="0" max="0" step="1" required>
+                    <small data-i18n>settings.ohProtection.highTemp.note</small>
+                  </label>
+
+                  <label>
+                    <span data-i18n>settings.ohProtection.lowTemp.title</span>
+                    <input type="number" inputmode="numeric" name="heating[overheatProtection][lowTemp]" min="0" max="0" step="1" required>
+                    <small data-i18n>settings.ohProtection.lowTemp.note</small>
+                  </label>
+                </div>
+
+                <small data-i18n>settings.ohProtection.desc</small>
+              </details>
+
+              <hr />
+
+              <details>
+                <summary><b data-i18n>settings.freezeProtection.title</b></summary>
+
+                <div class="grid">
+                  <label>
+                    <span data-i18n>settings.freezeProtection.lowTemp</span>
+                    <input type="number" inputmode="numeric" name="heating[freezeProtection][lowTemp]" min="0" max="0" step="1" required>
+                  </label>
+
+                  <label>
+                    <span data-i18n>settings.freezeProtection.thresholdTime</span>
+                    <input type="number" inputmode="numeric" name="heating[freezeProtection][thresholdTime]" min="30" max="1800" step="1" required>
+                  </label>
+                </div>
+
+                <small data-i18n>settings.freezeProtection.desc</small>
+              </details>
+
+              <br />
+
               <button type="submit" data-i18n>button.save</button>
             </form>
           </div>
@@ -236,6 +280,30 @@
                 <input type="number" inputmode="numeric" name="dhw[maxModulation]" min="1" max="100" step="1" required>
               </label>
 
+              <hr />
+
+              <details>
+                <summary><b data-i18n>settings.ohProtection.title</b></summary>
+
+                <div class="grid">
+                  <label>
+                    <span data-i18n>settings.ohProtection.highTemp.title</span>
+                    <input type="number" inputmode="numeric" name="dhw[overheatProtection][highTemp]" min="0" max="0" step="1" required>
+                    <small data-i18n>settings.ohProtection.highTemp.note</small>
+                  </label>
+
+                  <label>
+                    <span data-i18n>settings.ohProtection.lowTemp.title</span>
+                    <input type="number" inputmode="numeric" name="dhw[overheatProtection][lowTemp]" min="0" max="0" step="1" required>
+                    <small data-i18n>settings.ohProtection.lowTemp.note</small>
+                  </label>
+                </div>
+
+                <small data-i18n>settings.ohProtection.desc</small>
+              </details>
+
+              <br />
+
               <button type="submit" data-i18n>button.save</button>
             </form>
           </div>
@@ -271,7 +339,7 @@
         </details>
 
         <hr />
-
+        
         <details>
           <summary><b data-i18n>settings.section.equitherm</b></summary>
           <div>
@@ -284,21 +352,44 @@
                 </label>
               </fieldset>
 
+              <div>
+                <div>
+                  <canvas id="etChart"></canvas>
+                </div>
+
+                <label>
+                  <div>
+                    <span data-i18n>settings.equitherm.chart.targetTemp</span>: <b class="etChartTargetTempValue"></b>°
+                  </div>
+                  <input class="etChartTargetTemp" type="range" value="0" min="0" max="0" step="0.5">
+                </label>
+              </div>
+              
               <div class="grid">
                 <label>
-                  <span data-i18n>settings.equitherm.n</span>
+                  <span data-i18n>settings.equitherm.slope.title</span>
-                  <input type="number" inputmode="decimal" name="equitherm[n_factor]" min="0.001" max="10" step="0.001" required>
+                  <input type="number" inputmode="decimal" name="equitherm[slope]" min="0.001" max="10" step="0.001" required>
+                  <small data-i18n>settings.equitherm.slope.note</small>
                 </label>
 
                 <label>
-                  <span data-i18n>settings.equitherm.k</span>
+                  <span data-i18n>settings.equitherm.exponent.title</span>
-                  <input type="number" inputmode="decimal" name="equitherm[k_factor]" min="0" max="10" step="0.01" required>
+                  <input type="number" inputmode="decimal" name="equitherm[exponent]" min="0.1" max="2" step="0.001" required>
+                  <small data-i18n>settings.equitherm.exponent.note</small>
+                </label>
+              </div>
+
+              <div class="grid">
+                <label>
+                  <span data-i18n>settings.equitherm.shift.title</span>
+                  <input type="number" inputmode="decimal" name="equitherm[shift]" min="-15" max="15" step="0.01" required>
+                  <small data-i18n>settings.equitherm.shift.note</small>
                 </label>
 
                 <label>
-                  <span data-i18n>settings.equitherm.t.title</span>
+                  <span data-i18n>settings.equitherm.targetDiffFactor.title</span>
-                  <input type="number" inputmode="decimal" name="equitherm[t_factor]" min="0" max="10" step="0.01" required>
+                  <input type="number" inputmode="decimal" name="equitherm[targetDiffFactor]" min="0" max="10" step="0.01" required>
-                  <small data-i18n>settings.equitherm.t.note</small>
+                  <small data-i18n>settings.equitherm.targetDiffFactor.note</small>
                 </label>
               </div>
 
@@ -308,7 +399,7 @@
         </details>
 
         <hr />
-
+        
         <details>
           <summary><b data-i18n>settings.section.pid</b></summary>
           <div>
@@ -483,92 +574,107 @@
                 </label>
               </div>
 
-              <fieldset>
+              <details>
-                <legend data-i18n>settings.ot.options.desc</legend>
+                <summary><b data-i18n>settings.ot.options.title</b></summary>
 
-                <label>
+                <div>
-                  <input type="checkbox" name="opentherm[options][dhwSupport]" value="true">
+                  <fieldset>
-                  <span data-i18n>settings.ot.options.dhwSupport</span>
+                    <small data-i18n>settings.ot.options.desc</small>
-                </label>
+                  </fieldset>
 
-                <label>
+                  <fieldset>
-                  <input type="checkbox" name="opentherm[options][coolingSupport]" value="true">
+                    <label>
-                  <span data-i18n>settings.ot.options.coolingSupport</span>
+                      <input type="checkbox" name="opentherm[options][dhwSupport]" value="true">
-                </label>
+                      <span data-i18n>settings.ot.options.dhwSupport</span>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][summerWinterMode]" value="true">
+                      <input type="checkbox" name="opentherm[options][coolingSupport]" value="true">
-                  <span data-i18n>settings.ot.options.summerWinterMode</span>
+                      <span data-i18n>settings.ot.options.coolingSupport</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][heatingStateToSummerWinterMode]" value="true">
+                      <input type="checkbox" name="opentherm[options][summerWinterMode]" value="true">
-                  <span data-i18n>settings.ot.options.heatingStateToSummerWinterMode</span>
+                      <span data-i18n>settings.ot.options.summerWinterMode</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][ch2AlwaysEnabled]" value="true">
+                      <input type="checkbox" name="opentherm[options][heatingStateToSummerWinterMode]" value="true">
-                  <span data-i18n>settings.ot.options.ch2AlwaysEnabled</span>
+                      <span data-i18n>settings.ot.options.heatingStateToSummerWinterMode</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][heatingToCh2]" value="true">
+                      <input type="checkbox" name="opentherm[options][ch2AlwaysEnabled]" value="true">
-                  <span data-i18n>settings.ot.options.heatingToCh2</span>
+                      <span data-i18n>settings.ot.options.ch2AlwaysEnabled</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][dhwToCh2]" value="true">
+                      <input type="checkbox" name="opentherm[options][heatingToCh2]" value="true">
-                  <span data-i18n>settings.ot.options.dhwToCh2</span>
+                      <span data-i18n>settings.ot.options.heatingToCh2</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][dhwBlocking]" value="true">
+                      <input type="checkbox" name="opentherm[options][dhwToCh2]" value="true">
-                  <span data-i18n>settings.ot.options.dhwBlocking</span>
+                      <span data-i18n>settings.ot.options.dhwToCh2</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][maxTempSyncWithTargetTemp]" value="true">
+                      <input type="checkbox" name="opentherm[options][dhwBlocking]" value="true">
-                  <span data-i18n>settings.ot.options.maxTempSyncWithTargetTemp</span>
+                      <span data-i18n>settings.ot.options.dhwBlocking</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][getMinMaxTemp]" value="true">
+                      <input type="checkbox" name="opentherm[options][dhwStateAsDhwBlocking]" value="true">
-                  <span data-i18n>settings.ot.options.getMinMaxTemp</span>
+                      <span data-i18n>settings.ot.options.dhwStateAsDhwBlocking</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][ignoreDiagState]" value="true">
+                      <input type="checkbox" name="opentherm[options][maxTempSyncWithTargetTemp]" value="true">
-                  <span data-i18n>settings.ot.options.ignoreDiagState</span>
+                      <span data-i18n>settings.ot.options.maxTempSyncWithTargetTemp</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][autoFaultReset]" value="true">
+                      <input type="checkbox" name="opentherm[options][getMinMaxTemp]" value="true">
-                  <span data-i18n>settings.ot.options.autoFaultReset</span>
+                      <span data-i18n>settings.ot.options.getMinMaxTemp</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][autoDiagReset]" value="true">
+                      <input type="checkbox" name="opentherm[options][ignoreDiagState]" value="true">
-                  <span data-i18n>settings.ot.options.autoDiagReset</span>
+                      <span data-i18n>settings.ot.options.ignoreDiagState</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][setDateAndTime]" value="true">
+                      <input type="checkbox" name="opentherm[options][autoFaultReset]" value="true">
-                  <span data-i18n>settings.ot.options.setDateAndTime</span>
+                      <span data-i18n>settings.ot.options.autoFaultReset</span>
-                </label>
+                    </label>
 
-                <label>
+                    <label>
-                  <input type="checkbox" name="opentherm[options][immergasFix]" value="true">
+                      <input type="checkbox" name="opentherm[options][autoDiagReset]" value="true">
-                  <span data-i18n>settings.ot.options.immergasFix</span>
+                      <span data-i18n>settings.ot.options.autoDiagReset</span>
-                </label>
+                    </label>
 
-                <hr />
+                    <label>
-                <label>
+                      <input type="checkbox" name="opentherm[options][setDateAndTime]" value="true">
-                  <input type="checkbox" name="opentherm[options][nativeHeatingControl]" value="true">
+                      <span data-i18n>settings.ot.options.setDateAndTime</span>
-                  <span data-i18n>settings.ot.nativeHeating.title</span><br />
+                    </label>
-                  <small data-i18n>settings.ot.nativeHeating.note</small>
-                </label>
-              </fieldset>
 
+                    <label>
+                      <input type="checkbox" name="opentherm[options][immergasFix]" value="true">
+                      <span data-i18n>settings.ot.options.immergasFix</span>
+                    </label>
+
+                    <hr />
+
+                    <label>
+                      <input type="checkbox" name="opentherm[options][nativeHeatingControl]" value="true">
+                      <span data-i18n>settings.ot.nativeHeating.title</span><br />
+                      <small data-i18n>settings.ot.nativeHeating.note</small>
+                    </label>
+                  </fieldset>
+                </div>
+              </details>
+              
+              <br />
               <button type="submit" data-i18n>button.save</button>
             </form>
           </div>
@@ -776,11 +882,169 @@
     </footer>
 
     <script src="/static/app.js?{BUILD_TIME}"></script>
+    <script src="/static/chart.js?{BUILD_TIME}"></script>
     <script>
       document.addEventListener('DOMContentLoaded', async () => {
         const lang = new Lang(document.getElementById('lang'));
         lang.build();
 
+        let etChart = null;
+        let etChartConfig = {
+          slope: null,
+          exponent: null,
+          shift: null,
+          unitSystem: null,
+          targetTemp: null,
+          minTemp: null,
+          maxTemp: null
+        };
+
+        const hasNeedDecimationChart = () => {
+          return window.innerWidth <= 800;
+        }
+
+        const makeEquithermChart = () => {
+          if (etChart == null) {
+            const ctx = document.getElementById('etChart').getContext('2d');
+
+            try {
+              etChart = new Chart(ctx, {
+                type: 'line',
+                data: {
+                  datasets: [{
+                    borderColor: (context) => {
+                      const chart = context.chart;
+                      const {ctx, chartArea} = chart;
+
+                      if (!chartArea) {
+                        return;
+                      }
+
+                      const gradient = ctx.createLinearGradient(0, chartArea.bottom, 0, chartArea.top);
+                      gradient.addColorStop(0, 'rgba(1, 114, 173, 1)');
+                      gradient.addColorStop(0.5, 'rgba(255, 99, 132, 1)');
+
+                      return gradient;
+                    },
+                    borderWidth: 3,
+                    fill: false,
+                    tension: 0.1,
+                    pointRadius: 2,
+                    pointHoverRadius: 4,
+                    indexAxis: "x",
+                    data: []
+                  }]
+                },
+                options: {
+                  responsive: true,
+                  resizeDelay: 500,
+                  parsing: false,
+                  interaction: {
+                    mode: 'nearest',
+                    intersect: false
+                  },
+                  plugins: {
+                    tooltip: {
+                      enabled: true,
+                      position: 'nearest',
+                      displayColors: false,
+                      callbacks: {
+                        title: (items) => {
+                          return `${i18n("settings.equitherm.chart.outdoorTemp")}: ${items[0].label}`;
+                        }
+                      }
+                    },
+                    legend: {
+                      display: false
+                    },
+                    decimation: {
+                      enabled: hasNeedDecimationChart(),
+                      algorithm: 'lttb',
+                      samples: 30,
+                      threshold: 30
+                    }
+                  },
+                  scales: {
+                    x: {
+                      display: true,
+                      type: "linear",
+                      reverse: true,
+                      title: {
+                        display: true
+                      },
+                      ticks: {
+                        stepSize: 1,
+                        format: {
+                          style: "unit",
+                          unit: "degree",
+                          unitDisplay: "narrow"
+                        }
+                      }
+                    },
+                    y: {
+                      display: true,
+                      title: {
+                        display: true
+                      },
+                      ticks: {
+                        format: {
+                          style: "unit",
+                          unit: "degree",
+                          unitDisplay: "narrow"
+                        }
+                      }
+                    }
+                  }
+                }
+              });
+
+            } catch (error) {
+              console.log(error);
+            }
+          }
+
+          if (!etChart) {
+            return;
+          }
+
+          while (etChart.data.datasets[0].data.length) {
+            etChart.data.datasets[0].data.pop();
+          }
+
+          for (let value = 30; value >= -30; value--) {
+            const outdoorTemp = etChartConfig.unitSystem == 0 ? value : c2f(value);
+
+            etChart.data.datasets[0].data.push({
+              x: parseFloat(outdoorTemp.toFixed(1)),
+              y: parseFloat(calculateEquithermTemp(outdoorTemp).toFixed(1))
+            });
+          }
+
+          etChart.data.datasets[0].label = i18n("settings.equitherm.chart.setpointTemp");
+          etChart.options.scales.x.title.text = i18n("settings.equitherm.chart.outdoorTemp");
+          etChart.options.scales.y.title.text = i18n("settings.equitherm.chart.setpointTemp");
+          etChart.update();
+        }
+
+        const calculateEquithermTemp = (outdoorTemp) => {
+          const tempDelta = etChartConfig.targetTemp - outdoorTemp;
+          const maxPoint = etChartConfig.targetTemp - (
+            etChartConfig.maxTemp - etChartConfig.targetTemp
+          ) / etChartConfig.slope;
+
+          const sf = (etChartConfig.maxTemp - etChartConfig.targetTemp) / Math.pow(
+            etChartConfig.targetTemp - maxPoint,
+            1 / etChartConfig.exponent
+          );
+          const result = etChartConfig.targetTemp + etChartConfig.shift + sf * (
+            tempDelta >= 0 
+              ? Math.pow(tempDelta, 1 / etChartConfig.exponent) 
+              : -(Math.pow(-(tempDelta), 1 / etChartConfig.exponent))
+          );
+
+          return Math.max(Math.min(result, etChartConfig.maxTemp), etChartConfig.minTemp);
+        }
+
         const fillData = (data) => {
           // System
           setSelectValue("[name='system[logLevel]']", data.system.logLevel);
@@ -818,6 +1082,7 @@
           setCheckboxValue("[name='opentherm[options][heatingToCh2]']", data.opentherm.options.heatingToCh2);
           setCheckboxValue("[name='opentherm[options][dhwToCh2]']", data.opentherm.options.dhwToCh2);
           setCheckboxValue("[name='opentherm[options][dhwBlocking]']", data.opentherm.options.dhwBlocking);
+          setCheckboxValue("[name='opentherm[options][dhwStateAsDhwBlocking]']", data.opentherm.options.dhwStateAsDhwBlocking);
           setCheckboxValue("[name='opentherm[options][maxTempSyncWithTargetTemp]']", data.opentherm.options.maxTempSyncWithTargetTemp);
           setCheckboxValue("[name='opentherm[options][getMinMaxTemp]']", data.opentherm.options.getMinMaxTemp);
           setCheckboxValue("[name='opentherm[options][ignoreDiagState]']", data.opentherm.options.ignoreDiagState);
@@ -874,6 +1139,19 @@
           setInputValue("[name='heating[hysteresis]']", data.heating.hysteresis);
           setInputValue("[name='heating[turboFactor]']", data.heating.turboFactor);
           setInputValue("[name='heating[maxModulation]']", data.heating.maxModulation);
+          setInputValue("[name='heating[overheatProtection][highTemp]']", data.heating.overheatProtection.highTemp, {
+            "min": 0,
+            "max": data.system.unitSystem == 0 ? 100 : 212
+          });
+          setInputValue("[name='heating[overheatProtection][lowTemp]']", data.heating.overheatProtection.lowTemp, {
+            "min": 0,
+            "max": data.system.unitSystem == 0 ? 99 : 211
+          });
+          setInputValue("[name='heating[freezeProtection][lowTemp]']", data.heating.freezeProtection.lowTemp, {
+            "min": data.system.unitSystem == 0 ? 1 : 34,
+            "max": data.system.unitSystem == 0 ? 30 : 86
+          });
+          setInputValue("[name='heating[freezeProtection][thresholdTime]']", data.heating.freezeProtection.thresholdTime);
           setBusy('#heating-settings-busy', '#heating-settings', false);
 
           // DHW
@@ -886,14 +1164,21 @@
             "max": data.system.unitSystem == 0 ? 100 : 212
           });
           setInputValue("[name='dhw[maxModulation]']", data.dhw.maxModulation);
+          setInputValue("[name='dhw[overheatProtection][highTemp]']", data.dhw.overheatProtection.highTemp, {
+            "min": 0,
+            "max": data.system.unitSystem == 0 ? 100 : 212
+          });
+          setInputValue("[name='dhw[overheatProtection][lowTemp]']", data.dhw.overheatProtection.lowTemp, {
+            "min": 0,
+            "max": data.system.unitSystem == 0 ? 99 : 211
+          });
           setBusy('#dhw-settings-busy', '#dhw-settings', false);
 
           // Emergency mode
-          setInputValue("[name='emergency[tresholdTime]']", data.emergency.tresholdTime);
           if (data.opentherm.options.nativeHeatingControl) {
             setInputValue("[name='emergency[target]']", data.emergency.target, {
               "min": data.system.unitSystem == 0 ? 5 : 41,
-              "max": data.system.unitSystem == 0 ? 40 : 86
+              "max": data.system.unitSystem == 0 ? 40 : 104
             });
 
           } else {
@@ -902,14 +1187,15 @@
               "max": data.heating.maxTemp,
             });
           }
-
+          setInputValue("[name='emergency[tresholdTime]']", data.emergency.tresholdTime);
           setBusy('#emergency-settings-busy', '#emergency-settings', false);
 
           // Equitherm
           setCheckboxValue("[name='equitherm[enabled]']", data.equitherm.enabled);
-          setInputValue("[name='equitherm[n_factor]']", data.equitherm.n_factor);
+          setInputValue("[name='equitherm[slope]']", data.equitherm.slope);
-          setInputValue("[name='equitherm[k_factor]']", data.equitherm.k_factor);
+          setInputValue("[name='equitherm[exponent]']", data.equitherm.exponent);
-          setInputValue("[name='equitherm[t_factor]']", data.equitherm.t_factor);
+          setInputValue("[name='equitherm[shift]']", data.equitherm.shift);
+          setInputValue("[name='equitherm[targetDiffFactor]']", data.equitherm.targetDiffFactor);
           setBusy('#equitherm-settings-busy', '#equitherm-settings', false);
 
           // PID
@@ -933,6 +1219,24 @@
           setInputValue("[name='pid[deadband][thresholdHigh]']", data.pid.deadband.thresholdHigh);
           setInputValue("[name='pid[deadband][thresholdLow]']", data.pid.deadband.thresholdLow);
           setBusy('#pid-settings-busy', '#pid-settings', false);
+
+          const etMinTemp = parseInt(data.system.unitSystem == 0 ? 5 : 41);
+          const etMaxTemp = parseInt(data.system.unitSystem == 0 ? 30 : 86);
+          const etTargetTemp = constrain(parseFloat(data.heating.target), etMinTemp, etMaxTemp);
+          
+          setInputValue(".etChartTargetTemp", etTargetTemp.toFixed(1), {
+            "min": etMinTemp,
+            "max": etMaxTemp
+          });
+
+          etChartConfig.slope = data.equitherm.slope;
+          etChartConfig.exponent = data.equitherm.exponent;
+          etChartConfig.shift = data.equitherm.shift;
+          etChartConfig.unitSystem = data.system.unitSystem;
+          etChartConfig.minTemp = data.heating.minTemp;
+          etChartConfig.maxTemp = data.heating.maxTemp;
+
+          makeEquithermChart();
         };
 
         try {
@@ -985,6 +1289,58 @@
         } catch (error) {
           console.log(error);
         }
+
+        document.querySelector(".etChartTargetTemp").addEventListener("input", async (event) => {
+          setValue('.etChartTargetTempValue', parseFloat(event.target.value).toFixed(1));
+        });
+
+        document.querySelector(".etChartTargetTemp").addEventListener("change", async (event) => {
+          if (!event.target.checkValidity()) {
+            return;
+          }
+
+          etChartConfig.targetTemp = parseFloat(event.target.value);
+          setValue('.etChartTargetTempValue', etChartConfig.targetTemp.toFixed(1));
+          makeEquithermChart();
+        });
+
+        document.querySelector("[name='equitherm[slope]']").addEventListener("change", async (event) => {
+          if (!event.target.checkValidity()) {
+            return;
+          }
+
+          etChartConfig.slope = parseFloat(event.target.value);
+          makeEquithermChart();
+        });
+
+        document.querySelector("[name='equitherm[exponent]']").addEventListener("change", async (event) => {
+          if (!event.target.checkValidity()) {
+            return;
+          }
+
+          etChartConfig.exponent = parseFloat(event.target.value);
+          makeEquithermChart();
+        });
+
+        document.querySelector("[name='equitherm[shift]']").addEventListener("change", async (event) => {
+          if (!event.target.checkValidity()) {
+            return;
+          }
+
+          etChartConfig.shift = parseFloat(event.target.value);
+          makeEquithermChart();
+        });
+
+        window.addEventListener('resize', async (event) => {
+          if (etChart) {
+            etChart.resize();
+            
+            if (etChart.options.plugins.decimation.enabled != hasNeedDecimationChart()) {
+              etChart.options.plugins.decimation.enabled = hasNeedDecimationChart();
+              etChart.update();
+            }
+          }
+        });
       });
     </script>
   </body>

src_data/scripts/utils.js

@@ -5,8 +5,13 @@ const setupForm = (formSelector, onResultCallback = null, noCastItems = []) => {
   }
 
   form.querySelectorAll('input').forEach(item => {
-    item.addEventListener('change', (e) => {
+    item.addEventListener('change', (event) => {
-      e.target.setAttribute('aria-invalid', !e.target.checkValidity());
+      if (!event.target.checkValidity()) {
+        event.target.setAttribute('aria-invalid', true);
+
+      } else if (event.target.hasAttribute('aria-invalid')) {
+        event.target.removeAttribute('aria-invalid');
+      }
     })
   });
 
@@ -630,6 +635,10 @@ const setCheckboxValue = (selector, value, parent = undefined) => {
   }
 
   item.checked = value;
+
+  setTimeout(() => {
+    item.dispatchEvent(new Event("change"));
+  }, 10);
 }
 
 const setRadioValue = (selector, value, parent = undefined) => {
@@ -643,7 +652,14 @@ const setRadioValue = (selector, value, parent = undefined) => {
   }
 
   for (let item of items) {
-    item.checked = item.value == value;
+    const checked = item.value == value;
+    if (item.checked != checked) {
+      item.checked = checked;
+
+      setTimeout(() => {
+        item.dispatchEvent(new Event("change"));
+      }, 10);
+    }
   }
 }
 
@@ -658,13 +674,17 @@ const setInputValue = (selector, value, attrs = {}, parent = undefined) => {
   }
 
   for (let item of items) {
-    item.value = value;
-
     if (attrs instanceof Object) {
       for (let attrKey of Object.keys(attrs)) {
         item.setAttribute(attrKey, attrs[attrKey]);
       }
     }
+
+    item.value = value;
+
+    setTimeout(() => {
+      item.dispatchEvent(new Event("change"));
+    }, 10);
   }
 }
 
@@ -853,4 +873,12 @@ function dec2hex(i) {
 
 function constrain(amt, low, high) {
   return ((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt)));
+}
+
+function c2f(value) {
+  return (9 / 5) * value + 32;
+}
+
+function f2c(value) {
+  return (value - 32) * (5 / 9);
 }

src_data/styles/app.css

@@ -3,6 +3,10 @@
     --pico-block-spacing-vertical: calc(var(--pico-spacing) * 0.75);
     --pico-block-spacing-horizontal: calc(var(--pico-spacing) * 0.75);
   }
+
+  .logo {
+    font-size: 1.2rem;
+  }
 }
 
 @media (min-width: 768px) {
@@ -10,6 +14,10 @@
     --pico-block-spacing-vertical: var(--pico-spacing);
     --pico-block-spacing-horizontal: var(--pico-spacing);
   }
+
+  .logo {
+    font-size: 1.25rem;
+  }
 }
 
 @media (min-width: 1024px) {
@@ -17,6 +25,10 @@
     --pico-block-spacing-vertical: calc(var(--pico-spacing) * 1.25);
     --pico-block-spacing-horizontal: calc(var(--pico-spacing) * 1.25);
   }
+
+  .logo {
+    font-size: 1.25rem;
+  }
 }
 
 @media (min-width: 1280px) {
@@ -25,6 +37,10 @@
     --pico-block-spacing-horizontal: calc(var(--pico-spacing) * 1.5);
   }
 
+  .logo {
+    font-size: 1.3rem;
+  }
+
   .container {
     max-width: 1000px;
   }
@@ -36,6 +52,10 @@
     --pico-block-spacing-horizontal: calc(var(--pico-spacing) * 1.75);
   }
 
+  .logo {
+    font-size: 1.3rem;
+  }
+
   .container {
     max-width: 1000px;
   }
@@ -111,7 +131,7 @@ tr.network:hover {
   border-radius: var(--pico-border-radius);
   color: var(--pico-code-kbd-color);
   font-weight: bolder;
-  font-size: 1.3rem;
+  /*font-size: 1.3rem;*/
   font-family: var(--pico-font-family-monospace);
 }