Use a DHT sensor to report temperature and humidity to a MQTT server.

How it works

The DHT Element is configured to get temperature and humidity values from the sensor every 2 minutes.

The ontemperature and onhumidity events create actions that are sent to the MQTT Element.

The MQTT Element is configured to publish the values to the server named “homemqtt” using the admin account and the secret password. Values are availabe on the topics diysensor/dht/temperature and diysensor/dht/humidity.

{
  "dht": {
    "on": {
      "type": "DHT22",
      "description": "Temperature and Humidity sensor",
      "pin": "D5",
      "readtime": "2m",
      "restart": "true",
      "powerpin": "D6",
      "powerinvert": "true",
      "ontemperature": "mqtt/home?temperature=$v",
      "onhumidity": "mqtt/home?humidity=$v"
    }
  },
  "mqtt": {
    "home": {
      "loglevel": "2",
      "server": "mqtt://admin:secret@homemqtt:1883",
      "publish": "diysensor/dht/+",
      "retain": 1
    }
  }
}

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