hm3301

MINTS is a network of small, ground-level measurement stations equipped with LoRa radio technology and sensors to monitor ground-level air quality and noise pollution at a local, urban scale

Full-stack IoT Air Quality Stack: ESP32-C3 firmware + Dockerized Node.js/SQLite backend + React Dashboard. Features MQTT telemetry, Nginx reverse proxying, and VPN-restricted API security.

Seeeduino Nano, EasySensors RFM95 PM1.0,PM2.5 and PM10 monitor for my Windows 10 IoT Core LoRa field gateways

A lightweight, native C++ driver for the Seeed Studio HM3301 Laser PM2.5 Dust Sensor, designed specifically for the Raspberry Pi Pico SDK.

Implements a standalone Air Quality Monitor using a Raspberry Pi Pico 2 W and the HM3301, SCD41, Grove Multichannel Gas sensors. It logs PM2.5 + Multi-Gas + CO2 data to an SD Card and acts as a BLE Peripheral to communicate with a mobile client for live readings, file transfer, and time synchronization.

Air Quality Sensor on the AVR platform - hardware + firmware

Air quality monitor with WioTerminal and HM3301 sensor

Implements a standalone Air Quality Monitor using a Raspberry Pi Pico W and the HM3301 Particulate Matter sensor. It logs PM1.0, PM2.5, and PM10 data to an SD Card and acts as a BLE Peripheral to communicate with a mobile client for live readings, file transfer, and time synchronization.