Tuya lights should be off after recovering from a power outage

[ntompson]

The problem

After a power outage, my Tuya light restores to the last state. It should default to off, like my other smart light bulbs. If I happened to have the Tuya light turned on when the power fails, I get woken up in the middle of the night when the power is restored.

Environment

• Localtuya version: v5.2.2
• Home Assistant Core version: 2024.11.4
• [] Does the device work using the Home Assistant Tuya Cloud component ? Not sure
• [] Does the device work using the Tinytuya (https://github.com/jasonacox/tinytuya) command line tool ? Not sure
• [] Was the device working with earlier versions of localtuya ? Which one? I can't remember
• [] Are you using the Tuya/SmartLife App in parallel ? No

Steps to reproduce

1. Turn Tuya light on in HA
2. Power fails (can simulate by flipping the breaker)
3. Power restored
4. Tuya light automatically turns on
5. People in bed curse

DP dump

    DPS [20] VALUE [True] 
    DPS [21] VALUE [white] 
    DPS [22] VALUE [41] 
    DPS [23] VALUE [308] 
    DPS [25] VALUE [000e0d0000000000000000c80000] 
    DPS [26] VALUE [0] 

Provide Home Assistant traceback/logs

put your log output between these markers

Additional information

[ankurgogate]

Have you tried setting the relay status on your tuya device using smartLife app?

If you want to use HomeAssistant
you can go to Developer Tools -> Actions

Search for LocalTuya: Set datapoint
Below is the data to be sent to the device
device_id: "<device_id>"
dp: 38 # This can be different for your device please check developer platform from tuya to use right ID
value: "off" # Possible values -> "off" / "on" / "memory"

If this works for your case, you can then create a helper for dropdown and write automation on change in the dropdown selected value.

[ntompson]

Thanks for the suggestion @ankurgogate. I don't have a lot of experience with LocalTuya, but are you suggesting I write an automation in HomeAssistant to turn the light off when the power comes on? Or is the process you are describing a way of deploying an automation into the Tuya device itself?

I'm just not too sure what to make of this:

... you can then create a helper for dropdown and write automation on change in the dropdown selected value.

What is a "helper for dropdown"?

My other question is what is function does the dp 38 have? Is this a parameter setting in the Tuya firmware that controls what happens after power failure?