For Arduino code, just put a sleep for 20 to 50 ms per loop iteration, ... change the data lines from outputs to inputs, set the pull-up for those and then buttons debounce.

Debouncing button or switch inputs on microcontrollers can be a challenging problem for those first starting to program these devices. ... has included some example Arduino code for others to use.

Did you know that you can use Arduino to turn on an LED when you press a button? Well, it is true, you can do this! Leaving the joke aside, let me show how you can achieve this. You will need the ...