I have a Somfy gate motor that uses RF remotes.
I bought a sonoff rf bridge, rewrote the firmware but it still does not recognise the rf signal.
My next plan is to take a remote, take out the button and just wire something that can close the circuit, instead of the push button.
I was looking at the common wifi relay switches but they operate on 220V and use the input current for output as well.
I would need a switch that I can control via wifi and then it would need to open or close a separate circuit, different than the input voltage.
any suggestion for cheap devices that can do that?