Signal Input/Output
A library that makes working with buttons simple.
Supports several different types of buttons (PushButton, CapacitiveButton, MPR121Button) and several button events (Press, Hold, Release).
Maintainer: Richard Miles
This library is compatible with all architectures so you should be able to use it on all the Arduino boards.
To use this library, open the Library Manager in the Arduino IDE and install it from there.