https://github.com/v3lectronics/air-quality-station
V Electronics air quality station design files & code
https://github.com/v3lectronics/air-quality-station
Last synced: 4 months ago
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V Electronics air quality station design files & code
- Host: GitHub
- URL: https://github.com/v3lectronics/air-quality-station
- Owner: V3lectronics
- Created: 2025-03-28T13:19:01.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2025-05-20T15:58:46.000Z (about 1 year ago)
- Last Synced: 2025-09-19T00:02:29.976Z (9 months ago)
- Size: 708 KB
- Stars: 3
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Air quality station
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!
# Specification:
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
# Components list
- Seeed Studio XIAO ESP32C3 [link](https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/)
- GRAVITY PM2.5 air quality sensor [link](https://www.dfrobot.com/product-2439.html)
> [!TODO] //find cheaper for example https://www.dfrobot.com/product-2526.html
> [!NOTE]
> Other sensors can be used as alternatives if you need more precise measurements.
- LCD Display + I2C adapter [link]()
> [!TODO] //find suitable option
- Vertical bar vertical indicator [link](https://www.digikey.pl/en/products/detail/inolux/INBD-T11020-YGNB/16964097)
- AM2320 temperature & humidity sensor [link](https://www.digikey.pl/pl/products/detail/pimoroni-ltd/COM1700/8126047)
> [!NOTE]
> DHT12 can be used as a slightly cheaper alternative compromising accuracy and measurement range.
- On/Off switch [link](https://www.digikey.pl/en/products/detail/adam-tech/SW-T3-1A-A-A3-S1/15284460)
- PS1240P02BT buzzer [link](https://www.digikey.pl/en/products/detail/tdk-corporation/PS1240P02BT/935924)
- 2N3904 driving transistor [link](https://www.digikey.pl/en/products/detail/shenzhen-slkormicro-semicon-co-ltd/2N3904/26371060)
# TODO
- 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???