I am trying to fix an issue on a new property I bought, without having to disassemble the entire floor.
Long story short, this house has a light in the hall connected to a switch and then two lights in the stair case which can be turn on using two different switches ( I think this is called a two way system?).
Now, what I am looking to do is to be able to turn on or off these 3 lights using any of these 3 switches. I have been trying to look online for suggestion and I think that is possible using some sonoff product. Can anyone please confirm and add a bit more details? Can this be done with the mini version so that I can keep current switches?