In this community-driven project, developer Mike Rankin demonstrates how the Sensirion SEN66 environmental sensing platform can be integrated into an ESP32-S3–based indoor air quality monitor. The project combines multiple air quality parameters like CO₂, particulate matter, VOCs, NOx, temperature, and humidity into a single, compact design using the SEN66 over an I²C/Qwiic interface.
Designed for flexibility, the implementation runs on an ESP32-S3 but can be adapted to other ESP32 variants, making it suitable for rapid prototyping and custom hardware designs. This user project highlights how the SEN66 enables comprehensive indoor air quality measurements with minimal integration effort, supporting developers who need reliable, multi-parameter sensing for embedded and IoT applications.
View the full project, hardware details, and source code on GitHub.
Find out more about the SEN66 sensor on our website.
