Its team has developed two different sensor nodes for this purpose: an indoor one that can measure CO2, and a mobile one that can measure particulate matter (PM) levels. Both versions are powered by an ESP32 microcontroller that reads out the air quality sensors and connects to the Internet using Wi-Fi or Bluetooth. The data can then be shared online to create detailed maps showing local variations in air quality.
The design of the sensor nodes is fully open-source, allowing anyone with basic electronic skills to build them.
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Measuring Air Quality Using Mobile Sensors For The Masses#
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CanAirIO 
Poor air quality is a major problem for city dwellers the world over. Dust, smoke, particles and noxious gases from vehicles, industry and agriculture makes many megacities downright hazardous to l…
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