i want a simple check if my RV is connected to the external power (landstrom in German).
My idea, very simple :-), using a Zigbee Socket, display a big Card red if 230V Power, Green if no power.
This works a little bit but unfortunately if the socket has no power the 230V may stay on the Display cause it is the last state before disconnecting.
Yes, i know different other ways, using Shellies or grap a connector from the RV …
But easier, if possible, if i can notice if the scocket is gone.