V Electronics Air Quality Station design files & code, everything is open source and can be modified easily by the user. The device measures air pollution, temperature and humidity.
Note
This is a work in progress!
Measurement range
| Air pollution | Temperature | Humidity |
|---|---|---|
| todo | Item2.1 -40°C to +80°C ±0.5°C | 0% to 99,9%RH ±3RH (at 25°C) |
- USB C power/programming (MCU fully unlocked)
- 2x16 LCD display + vertical bar LCD color display
- No battery (a powerbank can be used)
- Not waterproof
- Seeed Studio XIAO ESP32C3 link
- GRAVITY PM2.5 air quality sensor link
[!TODO] //find cheaper for example https://www.dfrobot.com/product-2526.html
- LCD Display + I2C adapter link
[!TODO] //find suitable option
- Vertical bar vertical indicator link
- AM2320 temperature & humidity sensor link
Note
DHT12 can be used as a slightly cheaper alternative compromising accuracy and measurement range.
- On/Off switch link
- PS1240P02BT buzzer link
- 2N3904 driving transistor link
- add test points
- add drill holes to mount sensor to PCB
- add gpio outputs for extra stuff
- add led at analog output
- add made in kicad (copy from cm5 io board)
- wifi/bluetooth connectivity???