Remote Temp MQTT - Home Assistant

[Lactionaire]

How do I set up the remote temperature sensor option? I have an external sensor that is reading the temperature and is being displayed in home assistant. How do I get the heat pump to get the reading from the external sensor? The sensor is tasmota based and I am using the mqtt broker in home assistant if that helps.

Any help would greatly appreciated.

[Mediacj]

You have to publish a remote temperature to the following topic: m2mqtt/mqttha/remote_temp/set The m2mqtt and mqttha are defined by myself so you have different names there. The remote temperature itself is just a raw value so no json is required.

[Lactionaire]

Hi, can you help me with the syntax. I have been trying to publish the topic. I am using mqtt explorer and when I call the service the message appears in mqtt explorer. The temperature does not change to the room temp and continues to read the internal sensor. Heres my syntax:

service: mqtt.publish data: topic: mitsubishi2mqtt/JuliansAC/remote_temp/set payload_template: '{{ states("sensor.sensor_julian_bme280_temperature") }}'

Thanks for your help,

[Mediacj]

Hi, can you help me with the syntax. I have been trying to publish the topic. I am using mqtt explorer and when I call the service the message appears in mqtt explorer. The temperature does not change to the room temp and continues to read the internal sensor. Heres my syntax:

service: mqtt.publish data: topic: mitsubishi2mqtt/JuliansAC/remote_temp/set payload_template: '{{ states("sensor.sensor_julian_bme280_temperature") }}'

Thanks for your help,

It looks ok for what I can see.

I don't use automation for it but Node Red, but the way you do it within automation should work also. The roomTemperature in the state topic should change to your external temperature.

[melyux]

I have the following automation "action" block to publish to the remote temperature, and it works.

  - service: mqtt.publish
    data:
      topic: "hvac/bedroom/remote_temp/set"
      payload_template: "{{ trigger.to_state.state | float | round(1) }}"

Try this and then we can see which parts are actually important to get it to work (I don't remember why I'm casting to a float and then rounding, for example).

Tip: To reset the temperature back to using the Mitsubishi's internal thermometer, publish 0 to the your/topic/here/remote_temp/set topic.

[Lactionaire]

I was able to get the remote temp to work with my syntax above. I updated the program and that resolved the issue as I must have been using an earlier version that did not have the remote temp mqtt function.

Thanks for your help.