Air Quality Station

Fire at Grenoble 20-11-2021 Credit: @villeofficiel

This project proposes the hardware design and the firmware of various low-cost and repairable airquality stations for citizens. Air quality measurements are transmitted over a private or public LoRaWAN network (Helium, TTN or self-hosted Chirpstack) and displayed as open data (luftdaten, opensensemap) or in private dashboard (cayenne, thingsboard.io). The firmware is based on RIOT OS. The IAQ sensors are listed here

Github repositories

Version 2024 (WIP)

Flipper Zero with BME680 and PMS7003

Board: Flipper Zero
Sensors:
- BME280: Temperature, Humidity, Pressure
- PMS7003: PM 1, 2.5, 10
FAP: https://lab.flipper.net/apps/airmon

Project (HW+SW)

ESP32 DevKit with BME280 and Sensirion SPS30

Board: ESP32 DevKit on TinyGS_2G4
Sensors:
- MIKROE-1978 (BME280) on Mikrobus Slot 1: Temperature, Humidity, Pressure
- Sensirion SPS30 PM Sensor on Grove I2C connector: PM 1, 2.5, 10
Connectivity: Wifi, BLE, LoRaWAN (Mikrobus RN2483 on Mikrobus Slot 0)
Firmware : RIOT OS

ESP32 DevKit + RN2483

RAK3172 with BME680 and PMS7003

Board: RAK3172 : MCU STM32WLE5
Sensors:
- BME680 : Temperature, Humidity, Pressure
- PMS7003: PM 1, 2.5, 10 (2x10 2mm header)
- LIS2DH12 : MEMS digital output motion sensor: ultra-low-power high-performance 3-axis “femto” accelerometer
- Grove connectors for UART (x2), I2C (x1), Analog GPIO (x2) and Digital GPIO (x1)
Power: MPPT for LiPo battery and solar panel (coming soon)
Connectivity: LoRaWAN, LoRa Mesh (coming soon)
Firmware : RIOT OS, STM32CubeIDE