These Xiaomi/Qingping/ClearGrass E-Ink Bluetooth type devices are iffy in my experience with Home Assistant and a Raspberry Pi 4B... one was inaccurate for humidity and would often not connect wirelessly (hardware/failure issue)... second device is accurate for both temperature and humidity, however it refused to connect wirelessly (not sure what is wrong). Third one works perfectly. They look great, but would not recommend using in a non-standard/not-supported way as only 1 out of three devices worked well and one device had a hardware failure reading humidity.
After 4 days of use the battery is low now .....