Hey
I have a scenario where my Wall switch should be a kip-button (spring-fallback) and when I push it, it turns off the power to the bulb and when I release it the power is back on. I want to place a Shelly out with the bulb, and the Kip-button should turn the shelly on/off. When the shelly powers up I want it to change to the different relay State than it had when it lost power. So I Cut the power shortly to my Shelly 1 and when it comes back on the relay has changed position.
Why I want this? If this could work I can Control my bulb with only two wires and a shelly. With this setup I could use both google Home and my kip-button to Control my light at the same time, but with a two wire Cable.
Hope you guys get my point - sorry for my bad english/danglish.