Posted on 15. August 2021
IKEA has released an air quality sensor which measures the PM2.5 density in the air and shows the classification by a green, yellow or red LED. For my surprise, it is a dump sensor with no ZigBee support like some other devices IKEA has relased in the past months. So let's make the sensor smart with the help of ESPHome and Home Assistant and add an additional eCO2 sensor.