I built one using these instructions and a ESP8266: https://www.pieterbrinkman.com/2021/02/03/build-a-cheap-air-quality-meter-using-esphome-home-assistant-and-a

I built one using these instructions and a ESP8266: https://www.pieterbrinkman.com/2021/02/03/build-a-cheap-air-quality-meter-using-esphome-home-assistant-and-a-particulate-matter-sensor/ https://www.pieterbrinkman.com/2021/02/03/build-a-cheap-air-... It publishes its data via MQTT, and you can use any system that can subscribe to a MQTT queue to process, display, etc. it.