Tuya lights stay on after a power outage

Third party integrations
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1

Hi. I have a few Tuya/SmartLife bulbs and Home Assistant running on a RaspberryPi 3B+. I encounter an issue where all Tuya lights remain on after a power outage. On reading their FAQ, their bulbs don’t have a ‘memory function’ to restore state after an outage. Is it possible to use Home Assistant as the ‘memory function’? The RaspberryPi is connected to a UPS, and is usually on by the time power is restored.

1 Like
2

I have fixed it with the following Blueprint. It requires a device_tracker enabled. Since the host machine of HomeAssistant is on a UPS, it can ‘see’ when other devices go offline. When the Canary Device goes from not_home (due to power loss) to home (power restoration) for 1 minute, the action is triggered.

blueprint:
  name: Turn off Smart Life bulbs
  description: Turn off Smart Life bulbs when power has returned after an outage.
  domain: automation
  input:
    canary_device:
      name: Canary Device
      selector:
        entity:
          domain: device_tracker
    target_light:
      name: Target Lights
      selector:
        target:
          entity:
            domain: light
            integration: tuya

mode: restart
max_exceeded: silent

trigger:
  platform: state
  entity_id: !input canary_device
  for: "00:01:00"
  from: "not_home"
  to: "home"

action:
- service: light.turn_off
  target: !input target_light

Was inspired by Restore lights to status they had before power outage

3

I’m looking at this several years after the solution was posted. Isn’t there a way to do this without device tracker, and instead just look at the light’s state which should be marked as unavailable?