Pyserial general resources

[sgbaird]

Related to the nonwireless version:

• https://blog.rareschool.com/2021/01/controlling-raspberry-pi-pico-using.html
• https://stackoverflow.com/questions/69271473/using-python-and-pyserial-to-run-python-scripts-on-a-pico-rp2040
• https://stackoverflow.com/questions/72151781/how-can-i-get-raspberry-pi-pico-to-communicate-with-pc-external-devices
• https://forums.raspberrypi.com/viewtopic.php?p=1973427

Avoid solutions that send arbitrary commands to the REPL.

Other resources:

• https://picozero.readthedocs.io/en/latest/gettingstarted.html#write-a-program-to-control-the-onboard-led