An example Arduino library that provides a couple basic functions for controlling the built-in LED on boards.
https://github.com/DevDungeon/BlinkyLEDArduinoLibrary
Just zip up all the contents a .zip or download this repository as a .zip from GitHub.
In Arduino IDE menu, go to Sketch -> Includ Libray -> Add ZIP Library
.
After including it, you can add the include headers to your current
sketch with Sketch -> Include Library -> BlinkyLED
.
You can open the example from the Arduino IDE by going to the menu
File -> Examples -> BlinkyLED -> blinky_example
.
See my Arduino CLI Tutorial and Arduino Libraries Tutorial for more information about using libraries, compiling, and uploading.