If you are looking to build an open-source / open-hardware air quality monitor that uses the same sensor modules like commercial monoitors check out the AirGrad

If you are looking to build an open-source / open-hardware air quality monitor that uses the same sensor modules like commercial monoitors check out the AirGradient DIY monitor project that we maintain. [1] [1] https://www.airgradient.com/open-airgradient/instructions/diy-pro/ https://www.airgradient.com/open-airgradient/instructions/di...