Merge 24342db40e into 0f4fa2e406

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/pio-dependabot.yaml

@@ -15,7 +15,7 @@ jobs:
     name: run PlatformIO Dependabot
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: run PlatformIO Dependabot
         uses: peterus/platformio_dependabot@v1.2.0
         with:

src/HaHelper.h

@@ -418,25 +418,26 @@ public:
 
 
   bool publishSwitchHeatingTurbo(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("heating_turbo"));
-    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("Turbo heating");
-    doc[FPSTR(HA_ICON)] = F("mdi:rocket-launch-outline");
-    doc[FPSTR(HA_STATE_TOPIC)] = this->settingsTopic.c_str();
-    doc[FPSTR(HA_STATE_ON)] = true;
-    doc[FPSTR(HA_STATE_OFF)] = false;
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.heating.turbo }}");
-    doc[FPSTR(HA_COMMAND_TOPIC)] = this->setSettingsTopic.c_str();
-    doc[FPSTR(HA_PAYLOAD_ON)] = F("{\"heating\": {\"turbo\" : true}}");
-    doc[FPSTR(HA_PAYLOAD_OFF)] = F("{\"heating\": {\"turbo\" : false}}");
-    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
-    doc.shrinkToFit();
+    return publishSwitch( 
+      F("heating_turbo"),
+      F("Turbo heating"),
+      F("mdi:rocket-launch-outline"),
+      F("{{ value_json.heating.turbo }}"),
+      F("{\"heating\": {\"turbo\" : true}}"),
+      F("{\"heating\": {\"turbo\" : false}}"),
+      enabledByDefault
+    );
+  }
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_SWITCH), F("heating_turbo")).c_str(), doc);
+  bool publishSwitchExtDevice(const String& caption, bool enabledByDefault = true) {
+    return publishSwitch(
+      F("extdev"), 
+      caption, 
+      F("mdi:toggle-switch-outline"),
+      F("{{ value_json.externalDev.state }}"),
+      F("{\"externalDev\": {\"state\" : true}}"), 
+      F("{\"externalDev\": {\"state\" : false}}"),
+      enabledByDefault );
   }
 
   bool publishInputHeatingHysteresis(UnitSystem unit = UnitSystem::METRIC, bool enabledByDefault = true) {
@@ -634,26 +635,18 @@ public:
 
 
   bool publishSwitchPid(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("pid"));
-    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("PID");
-    doc[FPSTR(HA_ICON)] = F("mdi:chart-bar-stacked");
-    doc[FPSTR(HA_STATE_TOPIC)] = this->settingsTopic.c_str();
-    doc[FPSTR(HA_STATE_ON)] = true;
-    doc[FPSTR(HA_STATE_OFF)] = false;
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.pid.enabled }}");
-    doc[FPSTR(HA_COMMAND_TOPIC)] = this->setSettingsTopic.c_str();
-    doc[FPSTR(HA_PAYLOAD_ON)] = F("{\"pid\": {\"enabled\" : true}}");
-    doc[FPSTR(HA_PAYLOAD_OFF)] = F("{\"pid\": {\"enabled\" : false}}");
-    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
-    doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_SWITCH), F("pid")).c_str(), doc);
+    return publishSwitch( 
+      F("pid"),
+      F("PID"),
+      F("mdi:chart-bar-stacked"),
+      F("{{ value_json.pid.enabled }}"),
+      F("{\"pid\": {\"enabled\" : true}}"),
+      F("{\"pid\": {\"enabled\" : false}}"),
+      enabledByDefault
+    );
   }
+  
 
   bool publishInputPidFactorP(bool enabledByDefault = true) {
     JsonDocument doc;
@@ -819,25 +812,16 @@ public:
 
 
   bool publishSwitchEquitherm(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"));
-    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");
-    doc[FPSTR(HA_ICON)] = F("mdi:sun-snowflake-variant");
-    doc[FPSTR(HA_STATE_TOPIC)] = this->settingsTopic.c_str();
-    doc[FPSTR(HA_STATE_ON)] = true;
-    doc[FPSTR(HA_STATE_OFF)] = false;
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ value_json.equitherm.enabled }}");
-    doc[FPSTR(HA_COMMAND_TOPIC)] = this->setSettingsTopic.c_str();
-    doc[FPSTR(HA_PAYLOAD_ON)] = F("{\"equitherm\": {\"enabled\" : true}}");
-    doc[FPSTR(HA_PAYLOAD_OFF)] = F("{\"equitherm\": {\"enabled\" : false}}");
-    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
-    doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_SWITCH), F("equitherm")).c_str(), doc);
+    return publishSwitch( 
+      F("equitherm"),
+      F("Equitherm"),
+      F("mdi:sun-snowflake-variant"),
+      F("{{ value_json.equitherm.enabled }}"),
+      F("{\"equitherm\": {\"enabled\" : true}}"),
+      F("{\"equitherm\": {\"enabled\" : false}}"),
+      enabledByDefault
+    );
   }
 
   bool publishInputEquithermFactorN(bool enabledByDefault = true) {
@@ -967,126 +951,87 @@ public:
   }
 
   bool publishHeatingState(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->stateTopic.c_str();
-    doc[FPSTR(HA_AVAILABILITY)][1][FPSTR(HA_VALUE_TEMPLATE)] = JsonString(AVAILABILITY_OT_CONN, true);
-    doc[FPSTR(HA_AVAILABILITY_MODE)] = F("all");
-    doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
-    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("heating"));
-    doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
-    //doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_DIAGNOSTIC);
-    doc[FPSTR(HA_DEVICE_CLASS)] = F("running");
-    doc[FPSTR(HA_NAME)] = F("Heating");
-    doc[FPSTR(HA_ICON)] = F("mdi:radiator");
-    doc[FPSTR(HA_STATE_TOPIC)] = this->stateTopic.c_str();
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ iif(value_json.slave.heating.active, 'ON', 'OFF') }}");
-    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
-    doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_BINARY_SENSOR), F("heating")).c_str(), doc);
+    return publishBinarySensorState(
+      F("heating"),
+      F("Heating"),
+      F("mdi:radiator"),
+      F("{{ iif(value_json.slave.heating.active, 'ON', 'OFF') }}"),
+      F("running"),
+      enabledByDefault
+    );
   }
 
   bool publishDhwState(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->stateTopic.c_str();
-    doc[FPSTR(HA_AVAILABILITY)][1][FPSTR(HA_VALUE_TEMPLATE)] = JsonString(AVAILABILITY_OT_CONN, true);
-    doc[FPSTR(HA_AVAILABILITY_MODE)] = F("all");
-    doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
-    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("dhw"));
-    doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
-    //doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_DIAGNOSTIC);
-    doc[FPSTR(HA_DEVICE_CLASS)] = F("running");
-    doc[FPSTR(HA_NAME)] = F("DHW");
-    doc[FPSTR(HA_ICON)] = F("mdi:faucet");
-    doc[FPSTR(HA_STATE_TOPIC)] = this->stateTopic.c_str();
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ iif(value_json.slave.dhw.active, 'ON', 'OFF') }}");
-    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
-    doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_BINARY_SENSOR), F("dhw")).c_str(), doc);
+    return publishBinarySensorState(
+      F("dhw"),
+      F("DHW"),
+      F("mdi:faucet"),
+      F("{{ iif(value_json.slave.dhw.active, 'ON', 'OFF') }}"),
+      F("running"),
+      enabledByDefault
+    );
   }
 
   bool publishFlameState(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->stateTopic.c_str();
-    doc[FPSTR(HA_AVAILABILITY)][1][FPSTR(HA_VALUE_TEMPLATE)] = JsonString(AVAILABILITY_OT_CONN, true);
-    doc[FPSTR(HA_AVAILABILITY_MODE)] = F("all");
-    doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
-    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("flame"));
-    doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
-    //doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_DIAGNOSTIC);
-    doc[FPSTR(HA_DEVICE_CLASS)] = F("running");
-    doc[FPSTR(HA_NAME)] = F("Flame");
-    doc[FPSTR(HA_ICON)] = F("mdi:gas-burner");
-    doc[FPSTR(HA_STATE_TOPIC)] = this->stateTopic.c_str();
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ iif(value_json.slave.flame, 'ON', 'OFF') }}");
-    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
-    doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_BINARY_SENSOR), F("flame")).c_str(), doc);
+    return publishBinarySensorState(
+      F("flame"),
+      F("Flame"),
+      F("mdi:gas-burner"),
+      F("{{ iif(value_json.slave.flame, 'ON', 'OFF') }}"),
+      F("running"),
+      enabledByDefault
+    );
   }
 
   bool publishFaultState(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->stateTopic.c_str();
-    doc[FPSTR(HA_AVAILABILITY)][1][FPSTR(HA_VALUE_TEMPLATE)] = JsonString(AVAILABILITY_OT_CONN, true);
-    doc[FPSTR(HA_AVAILABILITY_MODE)] = F("all");
-    doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
-    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(F("fault"));
-    doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
-    doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_DIAGNOSTIC);
-    doc[FPSTR(HA_DEVICE_CLASS)] = F("problem");
-    doc[FPSTR(HA_NAME)] = F("Fault");
-    doc[FPSTR(HA_ICON)] = F("mdi:alert-remove-outline");
-    doc[FPSTR(HA_STATE_TOPIC)] = this->stateTopic.c_str();
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ iif(value_json.slave.fault.active, 'ON', 'OFF') }}");
-    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
-    doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_BINARY_SENSOR), F("fault")).c_str(), doc);
+    return publishBinarySensorState(
+      F("fault"),
+      F("Fault"),
+      F("mdi:alert-remove-outline"),
+      F("{{ iif(value_json.slave.fault.active, 'ON', 'OFF') }}"),
+      F("problem"),
+      enabledByDefault
+    );
   }
 
   bool publishDiagState(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->stateTopic.c_str();
-    doc[FPSTR(HA_AVAILABILITY)][1][FPSTR(HA_VALUE_TEMPLATE)] = JsonString(AVAILABILITY_OT_CONN, true);
-    doc[FPSTR(HA_AVAILABILITY_MODE)] = F("all");
-    doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
-    doc[FPSTR(HA_UNIQUE_ID)] = this->getObjectIdWithPrefix(FPSTR(HA_ENTITY_CATEGORY_DIAGNOSTIC));
-    doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
-    doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_DIAGNOSTIC);
-    doc[FPSTR(HA_DEVICE_CLASS)] = F("problem");
-    doc[FPSTR(HA_NAME)] = F("Diagnostic");
-    doc[FPSTR(HA_ICON)] = F("mdi:account-wrench");
-    doc[FPSTR(HA_STATE_TOPIC)] = this->stateTopic.c_str();
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ iif(value_json.slave.diag.active, 'ON', 'OFF') }}");
-    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
-    doc.shrinkToFit();
-
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_BINARY_SENSOR), FPSTR(HA_ENTITY_CATEGORY_DIAGNOSTIC)).c_str(), doc);
+    
+    return publishBinarySensorState(
+      F("diag"),
+      F("Diagnostic"),
+      F("mdi:account-wrench"),
+      F("{{ iif(value_json.slave.diag.active, 'ON', 'OFF') }}"),
+      F("problem"),
+      enabledByDefault
+    );
   }
 
   bool publishExternalPumpState(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("ext_pump"));
-    doc[FPSTR(HA_OBJECT_ID)] = doc[FPSTR(HA_UNIQUE_ID)];
-    doc[FPSTR(HA_ENTITY_CATEGORY)] = FPSTR(HA_ENTITY_CATEGORY_DIAGNOSTIC);
-    doc[FPSTR(HA_DEVICE_CLASS)] = F("running");
-    doc[FPSTR(HA_NAME)] = F("External pump");
-    doc[FPSTR(HA_ICON)] = F("mdi:pump");
-    doc[FPSTR(HA_STATE_TOPIC)] = this->stateTopic.c_str();
-    doc[FPSTR(HA_VALUE_TEMPLATE)] = F("{{ iif(value_json.master.externalPump.state, 'ON', 'OFF') }}");
-    doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
-    doc.shrinkToFit();
 
-    return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_BINARY_SENSOR), F("ext_pump")).c_str(), doc);
+    return publishBinarySensorState(
+      F("ext_pump"),
+      F("External pump"),
+      F("mdi:pump"),
+      F("{{ iif(value_json.master.externalPump.state, 'ON', 'OFF') }}"),
+      F("running"),
+      enabledByDefault
+    );
+  }
+
+  bool publishExtDevState(const String& caption,  bool enabledByDefault = true) {
+    
+    return publishBinarySensorState(
+      F("extdev"), 
+      caption,
+      F("mdi:toggle-switch"),
+      F("{{ iif(value_json.master.externalDev.state, 'ON', 'OFF') }}"),
+      F("running"),
+      enabledByDefault
+    );
   }
 
   bool publishFaultCode(bool enabledByDefault = true) {
@@ -1357,6 +1302,79 @@ public:
   protected:
     unsigned short expireAfter = 300u;
     String statusTopic, stateTopic, setStateTopic, settingsTopic, setSettingsTopic;
+
+    void initCommonDocFields(JsonDocument& doc, 
+                              const String& uniqueId, 
+                              const String& name, 
+                              const String& icon, 
+                              const String& stateTopic, 
+                              const String& entityCategory,
+                              bool enabledByDefault) {
+        
+        doc[FPSTR(HA_ENABLED_BY_DEFAULT)] = enabledByDefault;
+        doc[FPSTR(HA_UNIQUE_ID)] = uniqueId;
+        doc[FPSTR(HA_OBJECT_ID)] = uniqueId;
+        doc[FPSTR(HA_ENTITY_CATEGORY)] = entityCategory;
+        doc[FPSTR(HA_NAME)] = name;
+        doc[FPSTR(HA_ICON)] = icon;
+        doc[FPSTR(HA_STATE_TOPIC)] = stateTopic;
+        doc[FPSTR(HA_EXPIRE_AFTER)] = this->expireAfter;
+    }
+
+    bool publishSwitch(const String& id,
+                       const String& name,
+                       const String& icon,
+                       const String& valueTemplate,
+                       const String& payloadOn,
+                       const String& payloadOff,
+                       bool enabledByDefault) {
+      JsonDocument doc;
+      initCommonDocFields(doc, 
+                        this->getObjectIdWithPrefix(id), 
+                        name, 
+                        icon, 
+                        this->settingsTopic.c_str(),
+                        FPSTR(HA_ENTITY_CATEGORY_CONFIG), 
+                        enabledByDefault );
+                        
+      doc[FPSTR(HA_AVAILABILITY)][FPSTR(HA_TOPIC)] = this->statusTopic.c_str(); 
+      doc[FPSTR(HA_COMMAND_TOPIC)] = this->setSettingsTopic.c_str();
+      doc[FPSTR(HA_VALUE_TEMPLATE)] = valueTemplate;
+      doc[FPSTR(HA_STATE_ON)] = true;
+      doc[FPSTR(HA_STATE_OFF)] = false;
+      doc[FPSTR(HA_PAYLOAD_ON)] = payloadOn;
+      doc[FPSTR(HA_PAYLOAD_OFF)] = payloadOff;
+      doc.shrinkToFit();
+      return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_SWITCH), id).c_str(), doc);
+    }
+
+    bool publishBinarySensorState(const String& id,
+                                  const String& name,
+                                  const String& icon,
+                                  const String& valueTemplate,
+                                  const String& deviceClass,
+                                  bool enabledByDefault) {
+      JsonDocument doc;
+      initCommonDocFields(doc, 
+                        this->getObjectIdWithPrefix(id), 
+                        name, 
+                        icon, 
+                        this->stateTopic.c_str(),
+                        FPSTR(HA_ENTITY_CATEGORY_DIAGNOSTIC), 
+                        enabledByDefault );
+
+      doc[FPSTR(HA_AVAILABILITY)][0][FPSTR(HA_TOPIC)] = this->statusTopic.c_str();
+      doc[FPSTR(HA_AVAILABILITY)][1][FPSTR(HA_TOPIC)] = this->stateTopic.c_str();
+      doc[FPSTR(HA_AVAILABILITY)][1][FPSTR(HA_VALUE_TEMPLATE)] = JsonString(AVAILABILITY_OT_CONN, true);
+      doc[FPSTR(HA_AVAILABILITY_MODE)] = F("all");
+
+      doc[FPSTR(HA_DEVICE_CLASS)] = deviceClass;
+      doc[FPSTR(HA_VALUE_TEMPLATE)] = valueTemplate;
+      
+      doc.shrinkToFit();
+      return this->publish(this->makeConfigTopic(FPSTR(HA_ENTITY_BINARY_SENSOR), id).c_str(), doc);
+    }
+  
 };
 
 const char HaHelper::AVAILABILITY_OT_CONN[] = "{{ iif(value_json.slave.connected, 'online', 'offline') }}";

src/MainTask.h

@@ -199,6 +199,7 @@ protected:
     this->emergency();
     this->cascadeControl();
     this->externalPump();
+    this->externalDev();
     this->miscRunned = millis();
     
     return true;
@@ -688,4 +689,46 @@ protected:
       Log.sinfoln(FPSTR(L_EXTPUMP), F("Enabled: anti stuck"));
     }
   }
-};
+  
+  void externalDev() {
+    static uint8_t configuredGpio = GPIO_IS_NOT_CONFIGURED;
+
+    if(!settings.externalDev.use) return;
+
+    // configure output
+    // if settings are different than the configured GPIO, update
+    if (settings.externalDev.gpio != configuredGpio) {
+      if (configuredGpio != GPIO_IS_NOT_CONFIGURED) {
+        digitalWrite(configuredGpio, LOW);
+      }
+      
+      if (GPIO_IS_VALID(settings.externalDev.gpio)) {
+        configuredGpio = settings.externalDev.gpio;
+        pinMode(configuredGpio, OUTPUT);
+        digitalWrite(configuredGpio, LOW);
+
+      } else if (configuredGpio != GPIO_IS_NOT_CONFIGURED) {
+        configuredGpio = GPIO_IS_NOT_CONFIGURED;
+      }
+    }
+
+    if (configuredGpio == GPIO_IS_NOT_CONFIGURED) {
+      if (vars.externalDev.state) {
+        vars.externalDev.state = false;
+
+        Log.sinfoln(FPSTR(L_EXTDEV), F("Disabled: use = off"));
+      }
+
+      return;
+    }
+
+    // output configured update relay if required
+    if(settings.externalDev.state != vars.externalDev.state ) {
+      digitalWrite(configuredGpio, settings.externalDev.state? HIGH:LOW );
+      vars.externalDev.state = settings.externalDev.state;
+    }
+
+  }
+
+};
+

src/MqttTask.h

@@ -506,6 +506,9 @@ protected:
     this->haHelper->publishInputEquithermFactorK(false);
     this->haHelper->publishInputEquithermFactorT(false);
 
+    // ext device
+    this->haHelper->publishSwitchExtDevice(String(settings.externalDev.caption), false);
+
     // states
     this->haHelper->publishStatusState();
     this->haHelper->publishEmergencyState();
@@ -515,6 +518,8 @@ protected:
     this->haHelper->publishFaultState();
     this->haHelper->publishDiagState();
     this->haHelper->publishExternalPumpState(false);
+    this->haHelper->publishExtDevState(String(settings.externalDev.caption), false);
+
 
     // sensors
     this->haHelper->publishFaultCode();

src/Settings.h

@@ -167,6 +167,13 @@ struct Settings {
     unsigned short antiStuckTime = 300;
   } externalPump;
 
+  struct {
+    bool use = false;
+    byte gpio = DEFAULT_EXT_DEV_GPIO;
+    char caption[41] = DEFAULT_EXT_DEV_CAPTION;
+    bool state = false;
+  } externalDev;
+
   struct {
     struct {
       bool enabled = false;
@@ -279,6 +286,10 @@ struct Variables {
     unsigned long lastEnabledTime = 0;
   } externalPump;
 
+  struct {
+    bool state = false;
+  } externalDev;
+
   struct {
     bool input = false;
     bool output = false;

src/defines.h

@@ -146,6 +146,14 @@
   #define DEFAULT_EXT_PUMP_GPIO GPIO_IS_NOT_CONFIGURED
 #endif
 
+#ifndef DEFAULT_EXT_DEV_GPIO
+  #define DEFAULT_EXT_DEV_GPIO GPIO_IS_NOT_CONFIGURED
+#endif
+
+#ifndef DEFAULT_EXT_DEV_CAPTION
+  #define DEFAULT_EXT_DEV_CAPTION "Device"
+#endif
+
 #ifndef PROGMEM
   #define PROGMEM 
 #endif

src/strings.h

@@ -32,6 +32,7 @@ const char L_REGULATOR_EQUITHERM[]                  PROGMEM = "REGULATOR.EQUITHE
 const char L_CASCADE_INPUT[]                        PROGMEM = "CASCADE.INPUT";
 const char L_CASCADE_OUTPUT[]                       PROGMEM = "CASCADE.OUTPUT";
 const char L_EXTPUMP[]                              PROGMEM = "EXTPUMP";
+const char L_EXTDEV[]                               PROGMEM = "EXTDEV";
 
 
 const char S_ACTIONS[]                              PROGMEM = "actions";
@@ -82,6 +83,8 @@ const char S_ENV[]                                  PROGMEM = "env";
 const char S_EPC[]                                  PROGMEM = "epc";
 const char S_EQUITHERM[]                            PROGMEM = "equitherm";
 const char S_EXTERNAL_PUMP[]                        PROGMEM = "externalPump";
+const char S_EXTERNAL_DEV[]                         PROGMEM = "externalDev";
+const char S_EXTERNAL_DEV_CAPTION[]                 PROGMEM = "caption";
 const char S_FACTOR[]                               PROGMEM = "factor";
 const char S_FAULT[]                                PROGMEM = "fault";
 const char S_FREEZE_PROTECTION[]                    PROGMEM = "freezeProtection";

src/utils.h

@@ -561,6 +561,15 @@ void settingsToJson(const Settings& src, JsonVariant dst, bool safe = false) {
     cascadeControlOutput[FPSTR(S_ON_LOSS_CONNECTION)] = src.cascadeControl.output.onLossConnection;
     cascadeControlOutput[FPSTR(S_ON_ENABLED_HEATING)] = src.cascadeControl.output.onEnabledHeating;
   }
+
+  if(!safe ) {
+    dst[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_USE)] = src.externalDev.use;
+    dst[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_GPIO)] = src.externalDev.gpio;
+    dst[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_EXTERNAL_DEV_CAPTION)] = src.externalDev.caption;
+  }
+  
+  if(src.externalDev.use)
+    dst[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_STATE)] = src.externalDev.state;
 }
 
 inline void safeSettingsToJson(const Settings& src, JsonVariant dst) {
@@ -1531,6 +1540,42 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
       }
     }
 
+    // external device
+    if (src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_USE)].is<bool>()) {
+      bool value = src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_USE)].as<bool>();
+
+      if (value != dst.externalDev.use) {
+        dst.externalDev.use = value;
+        changed = true;
+      }
+    }
+
+    if (!src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_GPIO)].isNull()) {
+      if (src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_GPIO)].is<JsonString>() && 
+          src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_GPIO)].as<JsonString>().size() == 0) {
+        if (dst.externalDev.gpio != GPIO_IS_NOT_CONFIGURED) {
+          dst.externalDev.gpio = GPIO_IS_NOT_CONFIGURED;
+          changed = true;
+        }
+        
+      } else {
+        unsigned char value = src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_GPIO)].as<unsigned char>();
+
+        if (GPIO_IS_VALID(value) && value != dst.externalDev.gpio) {
+          dst.externalDev.gpio = value;
+          changed = true;
+        }
+      }
+    }
+
+    if (!src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_EXTERNAL_DEV_CAPTION)].isNull()) {
+      String value = src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_EXTERNAL_DEV_CAPTION)].as<String>();
+
+      if (value.length() < sizeof(dst.externalDev.caption) && !String(dst.externalDev.caption).equals(value)) {
+        strcpy(dst.externalDev.caption, value.c_str());
+        changed = true;
+      }
+    }
 
     // cascade control
     if (src[FPSTR(S_CASCADE_CONTROL)][FPSTR(S_INPUT)][FPSTR(S_ENABLED)].is<bool>()) {
@@ -1653,6 +1698,15 @@ bool jsonToSettings(const JsonVariantConst src, Settings& dst, bool safe = false
     }
   }
 
+  if (dst.externalDev.use && src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_STATE)].is<bool>()) {
+    bool value = src[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_STATE)].as<bool>();
+
+    if (value != dst.externalDev.state) {
+      dst.externalDev.state = value;
+      changed = true;
+    }
+  }
+
   // force check emergency target
   {
     float value = !src[FPSTR(S_EMERGENCY)][FPSTR(S_TARGET)].isNull() ? src[FPSTR(S_EMERGENCY)][FPSTR(S_TARGET)].as<float>() : dst.emergency.target;
@@ -2118,6 +2172,7 @@ void varsToJson(const Variables& src, JsonVariant dst) {
   master[FPSTR(S_MQTT)][FPSTR(S_CONNECTED)] = src.mqtt.connected;
   master[FPSTR(S_EMERGENCY)][FPSTR(S_STATE)] = src.emergency.state;
   master[FPSTR(S_EXTERNAL_PUMP)][FPSTR(S_STATE)] = src.externalPump.state;
+  master[FPSTR(S_EXTERNAL_DEV)][FPSTR(S_STATE)] = src.externalDev.state;
 
   auto mCascadeControl = master[FPSTR(S_CASCADE_CONTROL)].to<JsonObject>();
   mCascadeControl[FPSTR(S_INPUT)] = src.cascadeControl.input;

src_data/locales/cn.json

@@ -104,6 +104,7 @@
         "mMqttConnected": "MQTT服务器连接状态",
         "mEmergencyState": "应急模式",
         "mExtPumpState": "外置循环泵",
+        "mExtDevState": "外置设备",
         "mCascadeControlInput": "Cascade 控制 (input)",
         "mCascadeControlOutput": "Cascade 控制 (output)",
 
@@ -289,6 +290,7 @@
         "ot": "OpenTherm协议设置",
         "mqtt": "MQTT 服务器设置",
         "extPump": "外置循环泵设置",
+        "extDev": "外置设备设置",
         "cascadeControl": "Cascade 级联控制设置"
       },
 
@@ -459,6 +461,13 @@
         "antiStuckTime": "防卡死运行时长<small>(分钟)</small>"
       },
 
+      "extDev": {
+        "use": "使用外置设备",
+        "gpio": "GPIO 继电器",
+        "state": "状态",
+        "caption": "说明"
+      },
+
       "cascadeControl": {
         "input": {
           "desc": "仅当另一台锅炉发生故障时启用本锅炉加热。另一台锅炉的控制器需在故障发生时切换GPIO输入状态以触发本功能。",

src_data/locales/en.json

@@ -104,6 +104,7 @@
         "mMqttConnected": "MQTT connection",
         "mEmergencyState": "Emergency mode",
         "mExtPumpState": "External pump",
+        "mExtDevState": "External device",
         "mCascadeControlInput": "Cascade control (input)",
         "mCascadeControlOutput": "Cascade control (output)",
 
@@ -289,6 +290,7 @@
         "ot": "OpenTherm settings",
         "mqtt": "MQTT settings",
         "extPump": "External pump settings",
+        "extDev": "External device settings",
         "cascadeControl": "Cascade control settings"
       },
 
@@ -458,6 +460,13 @@
         "antiStuckInterval": "Anti stuck interval <small>(days)</small>",
         "antiStuckTime": "Anti stuck time <small>(min)</small>"
       },
+      
+      "extDev": {
+        "use": "Use external device",
+        "gpio": "Relay GPIO",
+        "state": "State",
+        "caption": "Caption"
+      },
 
       "cascadeControl": {
         "input": {

src_data/locales/it.json

@@ -104,6 +104,7 @@
         "mMqttConnected": "Connessione MQTT",
         "mEmergencyState": "Modo Emergenza",
         "mExtPumpState": "Pompa esterna",
+        "mExtDevState": "Dispositivo esterno",
         "mCascadeControlInput": "Controllo a cascata (input)",
         "mCascadeControlOutput": "Controllo a cascata (output)",
 
@@ -289,6 +290,7 @@
         "ot": "Impostazioni OpenTherm",
         "mqtt": "Impostazioni MQTT",
         "extPump": "Impostazioni pompa esterna",
+        "extDev": "Impostazioni dispositivo esterno",
         "cascadeControl": "Impostazioni controllo a cascata"
       },
 
@@ -459,6 +461,13 @@
         "antiStuckTime": "Tempo antiblocco <small>(min)</small>"
       },
 
+      "extDev": {
+        "use": "Usa dispositivo esterno",
+        "gpio": "GPIO relè",
+        "state": "Stato",
+        "caption": "Didascalia"
+      },
+
       "cascadeControl": {
         "input": {
           "desc": "Può essere attivata la caldaia se un'altra ha fallito. Il controllo dell'altra caldaia cambia lo stato dell'ingresso del GPIO in caso di errore.",

src_data/locales/ru.json

@@ -104,6 +104,7 @@
         "mMqttConnected": "Подключение к MQTT",
         "mEmergencyState": "Аварийный режим",
         "mExtPumpState": "Внешний насос",
+        "mExtDevState": "Внешнее устройство",
         "mCascadeControlInput": "Каскадное управление (вход)",
         "mCascadeControlOutput": "Каскадное управление (выход)",
 
@@ -289,6 +290,7 @@
         "ot": "Настройки OpenTherm",
         "mqtt": "Настройки MQTT",
         "extPump": "Настройки дополнительного насоса",
+        "extDev": "Настройки внешнего устройства",
         "cascadeControl": "Настройки каскадного управления"
       },
 
@@ -459,6 +461,13 @@
         "antiStuckTime": "Время работы насоса <small>(в минутах)</small>"
       },
 
+      "extDev": {
+        "use": "Использовать внешнее устройство",
+        "gpio": "GPIO реле",
+        "state": "Состояние",
+        "caption": "Назначение"
+      },
+
       "cascadeControl": {
         "input": {
           "desc": "Может использоваться для включения отопления только при неисправности другого котла. Контроллер другого котла должен изменить состояние входа GPIO в случае неисправности.",

src_data/pages/dashboard.html

@@ -135,6 +135,10 @@
                   <th scope="row" data-i18n>dashboard.states.mExtPumpState</th>
                   <td><i class="mExtPumpState"></i></td>
                 </tr>
+                <tr>
+                  <th scope="row" data-i18n>dashboard.states.mExtDevState</th>
+                  <td><i class="mExtDevState"></i></td>
+                </tr>
                 <tr>
                   <th scope="row" data-i18n>dashboard.states.mCascadeControlInput</th>
                   <td><i class="mCascadeControlInput"></i></td>
@@ -658,6 +662,7 @@
               result.master.emergency.state ? "red" : "green"
             );
             setState('.mExtPumpState', result.master.externalPump.state);
+            setState('.mExtDevState', result.master.externalDev.state);
             setState('.mCascadeControlInput', result.master.cascadeControl.input);
             setState('.mCascadeControlOutput', result.master.cascadeControl.output);
 

src_data/pages/settings.html

@@ -763,6 +763,42 @@
 
         <hr />
 
+        <details> 
+          <summary><b data-i18n>settings.section.extDev</b></summary>
+          <div>
+            <div id="extdev-settings-busy" aria-busy="true"></div>
+            <form action="/api/settings" id="extdev-settings" class="hidden">
+              <fieldset>
+                <label for="extdev-use">
+                  <input type="checkbox" id="extdev-use" name="externalDev[use]" value="false">
+                  <span data-i18n>settings.extDev.use</span>
+                </label>
+
+                <label for="extdev-state">
+                  <input type="checkbox" id="extdev-state" name="externalDev[state]" value="false">
+                  <span data-i18n>settings.extDev.state</span>
+                </label>
+              </fieldset>
+              
+              <div class="grid">
+                <label for="extdev-gpio">
+                  <span data-i18n>settings.extDev.gpio</span>
+                  <input type="number" inputmode="numeric" id="extdev-gpio" name="externalDev[gpio]" min="0" max="254" step="1">
+                </label>
+                
+                <label for="extdev-caption">
+                  <span data-i18n>settings.extDev.caption</span>
+                  <input type="text" id="extdev-caption" name="externalDev[caption]" maxlength="40" required>
+                </label>
+              </div>
+              
+              <button type="submit" data-i18n>button.save</button>
+            </form>
+          </div>
+        </details>
+
+        <hr />
+
         <details>
           <summary><b data-i18n>settings.section.cascadeControl</b></summary>
           <div>
@@ -932,6 +968,13 @@
           setInputValue("[name='externalPump[antiStuckTime]']", data.externalPump.antiStuckTime);
           setBusy('#extpump-settings-busy', '#extpump-settings', false);
 
+          // Extdev
+          setCheckboxValue('#extdev-use', data.externalDev.use);
+          setInputValue('#extdev-gpio', data.externalDev.gpio < 255 ? data.externalDev.gpio : '');
+          setInputValue('#extdev-caption', data.externalDev.caption);
+          setCheckboxValue('#extdev-state', data.externalDev.state);
+          setBusy('#extdev-settings-busy', '#extdev-settings', false);
+
           // Cascade control
           setCheckboxValue("[name='cascadeControl[input][enabled]']", data.cascadeControl.input.enabled);
           setInputValue("[name='cascadeControl[input][gpio]']", data.cascadeControl.input.gpio < 255 ? data.cascadeControl.input.gpio : '');
@@ -1085,6 +1128,7 @@
           setupForm('#ot-settings', fillData);
           setupForm('#mqtt-settings', fillData, ['mqtt.user', 'mqtt.password', 'mqtt.prefix']);
           setupForm('#extpump-settings', fillData);
+          setupForm('#extdev-settings', fillData);
           setupForm('#cc-settings', fillData);
 
         } catch (error) {