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AERIS – Air Quality Monitoring System

AERIS is an open-source air quality monitor built around an ESP32 microcontroller, SEN55 module and custom breakout board. It measures and reports environmental parameters, such as particulate matter, VOCs, humidity and temperature in real-time to either a Home Assistant instance (through ESPHome) or a local web app.

Project Goals

Accurate & Trustable Data – Obtained by using the factory-calibrated SEN55 and thermally isolating the unit from the other electronics.
Low-Cost – AERIS' DIY-friendly design approach and BOM considerations result in a unit cost that is more than halved when compared to equivalent off-the-shelf products, at only £35/€40/$48.
Full Hardware Utilisation – Using any of the provided firmware options, every last bit of information is extracted from AERIS, getting the most "bang-for-buck" out of the used hardware.
Simple Assembly – From a snap-fit case to a breakout PCB, assembly is streamlined to require minimal tools and only a few minutes.
Accessible Project - Care is taken to decrease friction from obtaining hardware to building an AERIS device. Unlike other monitors, AERIS can be used fully as a standalone unit without needing a Home Assistant instance.

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AERIS – Air Quality Monitoring System

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AERIS – Air Quality Monitoring System

Project Goals

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