Mobile Air Quality Monitoring and Logging Project
Parts used:
Adafruit ESP32-S2 TFT Feather - 4MB Flash, 2MB PSRAM, STEMMA QT (https://www.adafruit.com/product/5300)
Adafruit PMSA003I Air Quality Breakout - STEMMA QT / Qwiic (https://www.adafruit.com/product/4632)
STEMMA QT / Qwiic JST SH 4-pin Cable - 100mm Long (https://www.adafruit.com/product/4210)
USB Battery Pack (Anker) and USB-C cable
To enable logging to flash, jumper GND - A2. (Or hookup a switch)
Install jumper before power up, this will setup the Flash RW for Circuit Python.
IMPORTANT NOTE: To be safe, please remove the jumper before powering OFF and wait a second! Else you may just cut power while writing to flash and chances are to corrupt the file system!
Note about the "plotaqd.py" script, this is for external use only (on your PC) plotting for the log file data. I just keep it on the CP drive handy.
INSTALL: Copy all files from the CIRCUITPY folder to your CircuitPy root. I included all libs used for convenience. That's it.