Enter the ExtraCore library for Arduino, a software library that turns two or more Arduinos into a multi-core microcontroller with more pins than you’ll ever need.

Pin debouncer library for the Arduino platform, to filter out noise on an input pin. This library implements a non-blocking function to detect and filter out random state changes on input pins. The ...

PinIO - Arduino pin management in javascript This is a simple node.js library for controlling multiple arduino boards and groups of pins. This is intended to be a fairly low-level library that exposes ...

The whole thing worked because of all the generous people who have written Arduino code, and also code to adapt the basic Arduino stuff to work with alternative chips from the Microchip was Atmel) AVR ...