We’ll have a look in this video at the new air quality sensor from Ikea called VINDRIKTNING. This is a PM2.5 sensor. The PM 2.5 mean Particulate Matter 2.5, and refers to tiny particles or droplets in the air that 2.5 microns or less in width.
Particulate Matter (PM) is a mixture of solid and liquid particles that are suspended in the air.
This is heavily modified sensor, beside the basic PM2.5 sensor, it also includes a ESP8266 so that we can communicate with Home Assistant, a mmwave radar LD2410 from HiLink, a Boch BME280 for the temperature, humidity and air pressure, and a bh1750 as an illuminance sensor.

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