[Smart Home / DIY] Installing a New PMS9003M Laser Dust Sensor in Atomy Air Purifier
Breathing New Life into the Atomy Air Purifier: PMS9003M Sensor Installation In my previous post, I documented the complete local integration of an abandoned Atomy Air Purifier (AAP-KR19W) into Home Assistant without relying on the dead official cloud servers. While the integration was a huge success, there was one minor issue: the physical laser dust sensor module inside the device was either broken or missing. As a result, the particulate matter (PM) readings on my Home Assistant dashboard were stuck at 0. ...