[jonwest]

I use the Athom one also, and putting a reed switch in the fully closed state, as well as in the fully open state allows me to reasonably determine where the door is. Might not be enough for your case, but for me it was enough to know that the door is “kinda open”, or “fully open”, or closed.

[moogly]

I did the same with a MHCOZY Zigbee dry contact relay and two Aqara door/window sensors. I use the dry contact relay for two doors, and have two more channels to use for other stuff if I need to.

Additionally, I tried using an Aqara vibration/tilt sensor for more accurate "partially open" status reporting but it was a) not sensitive enough b) too unreliable c) too slow to update. I guess it's more meant for detecting impacts or falls.

I've also toyed with the idea to mount an ultrasonic distance sensor at the top of the (rolling) door, which could measure how far from the ceiling/far wall the top of the door is, but it'd be pretty bulky and problematic to power mounted on a moving part like a door.