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Imported from GitHub: Alexander-T-Moss/AERIS · commit 7f73cc8 · license GPL-3.0

Description

Open-source air quality monitor built around an ESP32 microcontroller, SEN55 module and custom breakout board.

README

AERIS – Air Quality Monitoring System

GitHub Release License Issues - AERIS Platform: ESP32

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.

Feature List

  • Temperature
  • Relative Humidity
  • Absolute Humidity (Approximation)
  • VOC Index
  • Particulate Matter
    • PM1.0
    • PM2.5
    • PM4.0
    • PM10.0
  • Nitrogen Oxide Index (NOx)
  • Carbon Dioxide (w/ Add-On Board)
  • Atmospheric Pressure (w/ Add-On Board)

More Information

Interested in this project or building an AERIS unit? Visit the official documentation site for more info.