Simple CO2 meter using Arduino UNO-Mega board and popular CO2 sensors (SenseAir S8, Sensirion SCD30, Winsen MH-Z14 or 19 and Cubic CM1106). Operation modes: Normal, Calibration 400ppm, Alarm adjust and Altitud compensation adjust

An open-source CO2 monitor helping to ensure a healthy environment in a class room and slowing down the spread of the corona SARS-CoV-2 virus.

Dockerized python app to measure air quality, temperature and more using a raspberry pi + sensor

Measures the CO2 level in the room and gives a warning when to ventilate. All values are also distributed via MQTT.

Get your CO2 Monitor into Prometheus and HomeKit

DIY, low cost esp-platform based CO2 monitor ;-)

Monitoring air quality (CO2, temperature, humidity and TVOC) with a Raspberry Pi, an MH-Z19 and an VMA342 sensor.

Reads Co2 Sensors like TFA-Dostmann AirCO2ntrol or similar with USB ID 04d9:a052

Build your own CO2 data logger for school.

.NET library for the HT2000 CO2 USB data logger, with support for dumping logs

DIY Frugal CO₂ Sensor: Arduino & inexpensive parts to build a sub-$100 system to track and evaluate COVID-19 risk using CO₂ levels to estimate ventilation and occupancy.

Python package for reading sensor data from IODATA UD-CO2S or Pocket CO2 Sensor. ✔Task Bar Icon ✔Native Notifications ✔Plotting on the terminal ✔Data Logging ✔Calibration `pipx install ud-co2s`

Simple CO₂ LED Meter

This repository has the code that helps you to build DIY CO2 measuring devices and connect them to your smartphone.

macOS Swift CLI app to read data from RAD-301 (and other) CO2 monitors

A short pure micropython sgp30 project for M5Stack Core or Grey.

Connect Honeywell Resideo CO2 meter to Home Assistant