All told, it’s a very professional build that certainly wouldn’t look out of place if it was nestled into some off-the-shelf air quality monitor. While the high-end detection capabilities ...

This cute air quality monitor uses facial expressions to alert you if your air quality drops. Components needed to build include an esp32c3, OLED display, DHT22 sensor, and air quality sensor.

[Andrew Lamchenko], who has built a number of small e-ink-based sensors this year, released another design called the eON Indoor Air Quality Sensor. As his previous sensor designs, the eON boasts ...

Indoor Air Quality Monitor Ratings Indoor air quality can be affected by pollutants, allergens, and environmental disasters like wildfires and floods. We put indoor air quality through our ...