Hi, I ask if possible to build a model with a contact to allow an external button to behave as the one built-in, so I can replace existing step-by-step relay with a sonoff keeping the current wiring configuration and having the 'status' of sonoff updated also when i push a 'wired' button.
This would be a great feature. I suggest having 2 possible implementations:
1- A switch, so shunting it would toggle the switch, simply provide a direct connection to the already existing button on the sonoff basic.
2- Apply 220v (or whatever) would toggle the switch.