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Open-source air quality and environmental monitoring node with STM32H743 + ESP32-C3, LoRaWAN, RS485, USB-C, Li-ion charging, and multi-sensor support.

Mobile device for distributed measurements of particulate matter (fine dust)

Kiwi monitor is an open source CO2/Humidity/Temperature sensor intended for monitoring the quality of the air in a room. Kiwi was created to support teachers with a notification to ventilate their classroom.

Hardware design, BOM, gerbers and 3D files for Air-quality-sensor-MQ135-breakout-with-easyC designed by Soldered Electronics.

Custom software, firmware, and hardware for air quality monitoring