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commit 34b09d6 Author: Boris Brock <[email protected]> Date: Tue Oct 8 08:02:14 2024 +0200 Deleting obsolete doc, updating ReadMe, fixing MQTT bug commit 36e55a6 Author: Boris Brock <[email protected]> Date: Tue Oct 8 07:49:46 2024 +0200 Update MQTTManager.cpp commit f1e5dce Author: Boris Brock <[email protected]> Date: Mon Oct 7 21:59:43 2024 +0200 Adding remaning messages commit 9bf0e53 Author: Boris Brock <[email protected]> Date: Sun Oct 6 21:04:30 2024 +0200 Adding first discovery topics
BorisBrock · Oct 8, 2024 · d2f0718 · d2f0718
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diff --git a/README.md b/README.md
@@ -110,15 +110,11 @@ Start evcc with your new configuration and the HeidelBridge should be there.
 
 # Setting up Home Assistant
 
-HeidelBridge offers a simple MQTT API (see below). Via this API, HeidelBridge can easily be added to Home Assistant.
-To do so, add the following to your `configuration.yaml`:
-
-```
-mqtt: !include mqtt.yaml
-```
-
-Also create a new file called `mqtt.yaml` and paste the example code from [here](doc/mqtt.yaml) into that file.
-Now Home Assistant should have all the entities provided by the HeidelBridge MQTT API.
+HeidelBridge offers a simple MQTT API (see below). It also supports Home Assistant's MQTT auto discovery feature.
+This way HeidelBridge can easily be added to Home Assistant:
+ - Make sure the MQTT integration in Home Assistant is enabled.
+ - Power on your HeidelBridge.
+ - The HeidelBridge should immediately show up as an MQTT device.
 
 GUI Example:
 

diff --git a/doc/mqtt.yaml b/doc/mqtt.yaml
diff --git a/src/Components/MQTT/MQTTManager.cpp b/src/Components/MQTT/MQTTManager.cpp
@@ -118,6 +118,18 @@ namespace MQTTManager
         }
     }
 
+    void PublishHomeAssistantDiscovery()
+    {
+        // Publish Home Assistant MQTT discovery messages
+        gMqttClient.publish("homeassistant/binary_sensor/HeidelBridge/is_vehicle_connected/config", 1, false, R"({"name":"Vehicle connected","device_class":"plug","state_topic":"heidelbridge/is_vehicle_connected","payload_on":"1","payload_off":"0","unique_id":"is_vehicle_connected","device":{"identifiers":["BB42"],"name":"HeidelBridge"}})");
+        gMqttClient.publish("homeassistant/binary_sensor/HeidelBridge/is_vehicle_charging/config", 1, false, R"({"name":"Vehicle charging","device_class":"battery_charging","state_topic":"heidelbridge/is_vehicle_charging","payload_on":"1","payload_off":"0","unique_id":"is_vehicle_charging","device":{"identifiers":["BB42"],"name":"HeidelBridge"}})");
+        gMqttClient.publish("homeassistant/sensor/HeidelBridge/charging_power/config", 1, false, R"({"name":"Charging power","device_class":"power","state_topic":"heidelbridge/charging_power","unique_id":"charging_power","unit_of_measurement":"W","device":{"identifiers":["BB42"],"name":"HeidelBridge"}})");
+        gMqttClient.publish("homeassistant/sensor/HeidelBridge/charging_current/config", 1, false, R"({"name":"Charging current","device_class":"current","state_topic":"heidelbridge/charging_current/phase1","unique_id":"charging_current","unit_of_measurement":"A","device":{"identifiers":["BB42"],"name":"HeidelBridge"}})");
+        gMqttClient.publish("homeassistant/sensor/HeidelBridge/charging_current_limit/config", 1, false, R"({"name":"Charging current limit","device_class":"current","state_topic":"heidelbridge/charging_current_limit","unique_id":"charging_current_limit","unit_of_measurement":"A","device":{"identifiers":["BB42"],"name":"HeidelBridge"}})");
+        gMqttClient.publish("homeassistant/sensor/HeidelBridge/energy_meter/config", 1, false, R"({"name":"Energy meter","device_class":"energy","state_topic":"heidelbridge/energy_meter","unique_id":"energy_meter","unit_of_measurement":"kWh","device":{"identifiers":["BB42"],"name":"HeidelBridge"}})");
+        gMqttClient.publish("homeassistant/sensor/HeidelBridge/temperature/config", 1, false, R"({"name":"Temperature","device_class":"temperature","state_topic":"heidelbridge/temperature","unique_id":"temperature","unit_of_measurement":"°C","device":{"identifiers":["BB42"],"name":"HeidelBridge"}})");
+    }
+
     void OnMqttConnect(bool sessionPresent)
     {
         Logger::Info("Connected to MQTT");
@@ -130,6 +142,9 @@ namespace MQTTManager
         gMqttClient.publish("heidelbridge/version", 0, true, versionString.c_str());
         gMqttClient.publish("heidelbridge/build_date", 0, true, __DATE__);
         gMqttClient.publish("heidelbridge/ip_address", 0, true, WiFi.localIP().toString().c_str());
+
+        // Publish discovery data
+        PublishHomeAssistantDiscovery();
     }
 
     void OnMqttDisconnect(AsyncMqttClientDisconnectReason reason)