board with relay for hide behind switch.

  • Hi, I have common european switches in my house

    I intend to use some pir sensors in my house to turn on lights, but I did not want to miss the method of manually switching them on by the switch.

    I'll use the home assistant as the interface.
    Is there a relay board where I can hide behind the switch, where the home assistant then knows if the light is off or on?

    Which board to advise me, needs to be small.

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