RPi fan not accessible in "HA startup" after update to 2024.8.2

Configuration Frontend
1

Hello community,

When I started with HA few years ago, I’ve made small manual modifications in order to start my RPI cooling fan on HA startup. I’ve installed rpi_pwm_gpio via HACS and defined my cooling fan as light in configuration.yaml:

light:
  - platform: rpi_gpio_pwm
    leds:
      - name: RPI Cooling Fan
        unique_id: 2e54c85a-79a3-4a82-86eb-da02c107bf11
        pin: 12

And then I’ve edited “HA Startup” and manually added following:

alias: HA startup
description: ""
trigger:
  - platform: homeassistant
    event: start
condition: []
action:
  - type: turn_on
    device_id: ""
    entity_id: light.rpi_cooling_fan
    domain: light
    brightness_pct: 80
mode: single

And fan was starting up happily on every HA restart…

But today after update to 2024.8.2 this automation is disabled with error:

Automation is unavailable
Actions: Unknown device ‘’

Can anyone suggest what should I add/change to make this startup automation working again, it is really hot these days I do not want that my RPI get a heat stroke :wink:

Thank you!

MiskoR

2

If you post yaml, please properly format it. See point 11 of:

What version did you update from? Because gpio support has been removed from core quite a while ago. You can still use gpio, but you’ll need a custom component for it.

3

Hi, I’ve updated from 2024.6.2 I believe… So it was working in post-2022…

4

Might be, if you already added the external component… Maybe post logs?

5

No logs, script is marked as disabled because “device_id” is empty due to the fact that “RPI Cooling Fan” is only exposed as entity not as device…

I guess that I need somehow to create a device from this entity in order to fill it in the missing field…

6

No, you need to use an action on the entity, device actions should be avoided for many reasons. Use the homeassistant.turn_on action instead. (Why is your fan a light?).

7

Where can I enter this “homeassistant.turn_on” action?

Fan was defined as “light” in order to control the speed…

8

If you want to use the brightness as speed, use the light.turn_on action. It used to be called a service in the past. Just search in the automation editor, or see the examples in the docs:

9

I believe “Actions” will not give me auto-start capability, which I need… They seem to be triggered manually

10

No, you can use the same triggers, you just need a different action type. If only you had formatted your code like I asked, I could have copy/pasted the yaml and changed a line or two…

11

Sorry, my bad, I’ve updated first post with backticks, thanks!

12

Yes! Perfect. Now change this:

To this:

alias: HA startup
description: ""
trigger:
  - platform: homeassistant
    event: start
condition: []
action:
  - action: light.turn_on
    metadata: {}
    data:
      brightness_pct: 80
    target:
      entity_id: light.rpi_cooling_fan
mode: single
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13

It works GREAT! Thanks a lot for your support!

1 Like