How to set up MQTT?

Configuration
1

Hi, I’m trying to set up MQTT to publish data and display this on a card in HA.

I have got a Raspberry Pi publish data using MQTT, a Python dictionary sent as JSON. On my HA Mosquitto broker is running and messages are coming in.

Now, I try to put the incoming data on a card, but I’m not been able to figure out how to do this. Some help would be appreciated.

2

You need to create a sensor or other entity so that you’ve got something to work with.

3

Success!

This is what the payload looks like (with some test data):

        payload = {
            "supply_fan_speed" : 10,
            "exhaust_fan_speed" : 11,
            "return_temperature" : 12,
            "supply_temperature" : 13,
            "outside_temperature" : 14,
            "exhaust_temperature" : 15,
            "bypass_valve" : "valve",
            "filter_weeks" : "filter",
            "summer_mode" : "summer"
        }

I added this to the configuration:

mqtt:
  sensor:
    - name: "whr930_supply_fan_speed"
      state_topic: "bijkeuken/whr930/data"
      value_template: "{{ value_json.supply_fan_speed }}"
    - name: "whr930_exhaust_fan_speed"
      state_topic: "bijkeuken/whr930/data"
      value_template: "{{ value_json.exhaust_fan_speed }}"

Now entities sensor.whr930_supply_fan_speed and sensor.whr930_exhaust_fan_speed can be used on the card.

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