Thanks! do you mean this one?

https://tinyurl.com/y7a7ntde

I have installed Domoticz on my RasPi 3B and it is working like a charm.
Recently i've purchased a wifi sonoff switche (not the wall-touch, just the on/off module) and connected the light in the walk-in-closet.

Now i want to set-up a motion sensor for this light so it will activate the sonoff when ...