This week we are featuring the "OpenCO2 Mini," an ultra-compact, user-developed indoor air quality monitor that prioritizes portability and open-source design. This project integrates the Sensirion STCC4 CO2 Sensor and the SHT40 for accurate temperature and humidity measurements. Built on the ESP32-S3 microcontroller and Arduino IDE compatible, the OpenCO2 Mini is designed for seamless connectivity, supporting Wi-Fi integration with systems like Home Assistant and Bluetooth monitoring via the Sensirion MyAmbience app. Its focus on low power and minimal footprint makes it ideal for R&D use in travel, classroom, or office monitoring applications.
To find out more about this project, check out the full details here.
If you want to learn more about our STCC4 CO2 sensor click here.