Ooh, if you do try my GZCGQ01LM driver let me know how it behaves. I'd be interested in adding support for the '11LM version.
I noticed the '01LM became unavailable this year and was a bit disappointed, as it's one of the best-behaving Xiaomi devices. I don't even run them on my dedicated Xiaomi mesh, they work with my >10-year-old AlertMe devices perfectly.