Automation to set bed and tool temp in octoprint

Configuration
,
1

I want to set my bed and tool temp for my printer via an automation so I can set it directly from my dashboard.

I installed the mqtt, homeassistant discovery and mqtt service plugins in octoprint.

Using mqtt explorer I can successfully set the bed and tool temps however it isn’t working when I try to do it in home assistant, either by calling the mqtt_publish service or via an automation.

This is my automation code:

alias: Mega X test
description: ""
trigger:
  - platform: template
    value_template: "{{ states.input_number.mega_x_bed_temp_helper.state | int }}"
condition: []
action:
  - service: notify.notify
    data:
      message: Mega X bed temp has been set to the inputted value
  - service: mqtt.publish
    data:
      qos: 0
      retain: false
      topic: octoprint/cmd/bed
      payload: {'"temp":30'}
mode: single

I have tried variations on the above using call-service, service_data and multiple variations on the payload but none of them change the temp on octoprint.

Additionally, I want to input the number inputted from the dashboard stated in the trigger as the payload, I’m just using a hardcoded number above to try and get it working.

Can anyone help me to get this working?

Thanks

2

without seeing what the payload is normally it’s hard to know for sure but try:

 payload: "{{'temp':30}}"
3

Thanks for the suggestion @finity, unfortunately I get an error when I try that payload format:

Message malformed: template value should be a string for dictionary value @ data[‘action’][1][‘data’]

This was the post that I followed so far but I couldn’t get it to work using this format or variations of it

4

Remove the single quotes from this:

      payload: {'"temp":30'}

to make it into proper JSON like this:

      payload: "{\"temp\":30}"

Reference: mqtt.publish

Screenshot_20230310-183501~2
Screenshot_20230310-183501~21065×273 35.9 KB