Good morning everyone
Someone has already used hassio and Arduino via USB. Specifically I should drive bistable relays with Arduino and the second relay contact have a state of it, so you can know if a light is already on or not.
The side of the wiring is Arduino is already solved, but in hassio I do not know how to have a button linked to the status of the relay
Thank you all for any response
bump…
I have the similar problem