That sounds AWESOME. I was just thinking of those little replacement motion sensor switches you sometimes see in public buildings but this sounds way cooler.

...Also sounds perfect for my other wishlist project: To make a vent system like this for the litter box to siphon all that inevitable dust and stank. X_X A sensor relay like that sounds PERFECT.

Not to be a mega newb but, know where I might start to look for something like this? 😅