HM330X by Tomoto


Arduino library for HM3301/HM3302 dust sensor.
This is intended to provide a much simpelr-to-use version of the library originally published by Seeed.

Author: Tomoto S. Washio

Maintainer: Tomoto S. Washio (

Read the documentation


This library is compatible with all architectures so you should be able to use it on all the Arduino boards.


To use this library, open the Library Manager in the Arduino IDE and install it from there.