PyOhio 2021 Basics of Hardware with a PyRuler Resources
Making Embedded Systems by Elecia White https://www.amazon.com/Making-Embedded-Systems-Patterns-Software/dp/1449302149
Embeddedfm podcast https://embedded.fm/
https://embedded.fm/blog/2016/2/27/embedded-software-engineering-101-microcontroller-basics
https://embedded.fm/blog/2016/5/16/ese101-peripherals-part-1 https://embeddedinventor.com/9-essential-microcontroller-peripherals-explained/
https://github.com/adafruit/circuitpython https://circuitpython.org/ Example guides: https://github.com/adafruit/Adafruit_Learning_System_Guides/tree/master/CircuitPython_Essentials
https://en.wikipedia.org/wiki/Capacitive_sensing https://learn.adafruit.com/adafruit-pyruler/circuitpython-cap-touch
https://learn.adafruit.com/adafruit-circuit-playground-express https://www.adafruit.com/product/4333