There is an Internet of Things (IoT) system for real-time PM monitoring named iDust. This system is based on a WEMOS D1 mini microcontroller and a PMS5003 PM sensor that incorporates scattering principle to measure the value of particles suspended in the air
(PM10, PM2.5, and PM1.0).
A System Based on the Internet of Things for Real-Time ... - MDPI
www.mdpi.com/1660-4601/15/4/821/pdfby G Marques - 2018