Particulate Matter Sensor and Controller project by luftdaten.info
This is a step by step construction guide for a particulate matter sensor station with the NodeMCU ESP8266 board developed by the luftdaten.info project. I only translated the original assembly guide into English and added some hints and experiences I had with this project.
Particulate Matter Sensor and Controller project
https://www.byteyourlife.com/en/household-tools/particulate-matter-sensor-controller-project-luftdaten-info/7204