Check out this maker’s project AqMood, an open-source air quality monitor built using the Sensirion SEN66 environmental sensor node.
AqMood measures PM2.5, VOCs, CO₂, NOx, temperature, and humidity. It integrates with ESPHome and Home Assistant, visualizing air quality in real time through an OLED display, ambient lighting, and expressive emoji-style icons.
This project demonstrates the SEN66’s precision and compact integration capabilities for smart home applications.
Full tutorial: github.com/tuct/aqMood
SEN66 product page: https://sensirion.com/products/catalog/SEN66
