Maya Ruiz, published a few days ago Example
Air-quality monitor
“The air in my office feels stuffy by the afternoon.” Now a light on the desk says when to open the window.
- What it took
- 3 evenings
- Made
- 1 print, 1 board
- Checked
- 5 of 5 met
What is in it
- ESP32-C3 board× 1
- SCD40 CO₂ sensor× 1
- Printed base and lid× 1
- Screws, 6 and 10 mm× 4
Build log
- MilestoneIt reads 420 ppm by the open windowa few days ago
- ProgressThe board went in on the first trya few days ago