#include #include #define BROKER_ADDR IPAddress(192,168,0,17) byte mac[] = {0x00, 0x10, 0xFA, 0x6E, 0x38, 0x4A}; EthernetClient client; HADevice device(mac, sizeof(mac)); HAMqtt mqtt(client, device); // "myValve" is unique ID of the sensor. You should define your own ID. HASensor valve("myValve"); void setup() { // you don't need to verify return status Ethernet.begin(mac); // set device's details (optional) device.setName("Arduino"); device.setSoftwareVersion("1.0.0"); // configure sensor (optional) valve.setIcon("mdi:home"); valve.setName("Water valve"); // valve.setValueTemplate("{{ value_json.state }}"); // valve.setDeviceClass("enum"); // valve.setOptions("open;opening;closed"); // valve.setDefaultEntityId("sensor.water_valve"); mqtt.begin(BROKER_ADDR); } void loop() { Ethernet.maintain(); mqtt.loop(); // you can report different states as follows: // valve.setValue("open"); // valve.setValue("opening"); // valve.setValue("close"); // Unlike the other device types, the HASensor doesn't store the previous value that was set. // It means that the MQTT message is produced each time the setValue method is called. }