A demo for arduino and platformio library

arduino library.properties config https://www.arduinolibraries.info/ https://github.com/arduino/library-registry https://arduino.github.io/arduino-cli/1.0/library-specification/#libraryproperties-file-format

platformio library.json config https://docs.platformio.org/en/latest/librarymanager/creating.html

https://docs.platformio.org/en/latest/platforms/index.html#platforms https://docs.platformio.org/en/latest/frameworks/index.html#frameworks