Building your own portable Air Quality Sensor #RaspberryPiPico #CircuitPython #PiDay @Raspberry_Pi @hackadayio

Costas Vav outlines building an AQI sensor with off-the-shelf parts and 3D-printed case on hackaday.io:

After visiting Seattle this summer during the forest fires and being made aware of how important AQI is, I decided to build my own AQI device.

When going into this project, I was not 100% sure what I wanted, but after a few iterations of hardware combinations, I came to the following requirements:

• Portable
• Off-the-shelf components
• 3D-printable case
• Fast start time

I prefer CircuitPython over Arduino, so that also helped in the decision (of parts).

The parts used:

1. Adafruit Feather RP2040 (https://www.adafruit.com/product/4884)
2. PMS5003 PM2.5 Air Quality Sensor (https://www.adafruit.com/product/3686)
3. Lithium Battery (https://www.adafruit.com/product/1781)
4. Adafruit Powerboost 1000 Charger (https://www.adafruit.com/product/2465)
5. 0.96″ OLED Display (https://www.adafruit.com/product/684)
6. On/Off Switch
7. Power Rail (snapped an end of a breadboard)
8. Jumper Wires
9. M2 Screws

See the build details on hackaday.io and more on Hackaday.