I have a question about connection of one Sonoff 4CH Pro R2. I have connected one blind in two channels (up and down) and it works great. Now I have the other two channels free; in one of its I would connect the switch that control the status on/off of air conditioner, and in other one the switch for lights. Is it possible? I’ve tried some kind of connections, without success... Can I control one blind and other two independent switch with one 4CH device, or the channels are “blocked” when I connect blinds?