You will need the Arduino Board, a 560Ω resistor, and LED and the code example below. We set the pinButton variable as integer 8 and we connect the button at pin 8 on the Board. Then the LED is ...

I made this Arduino 8 bit binary led counter as ... function (in our case we trigger the interrrupt when pin 2 is low). Here you can read more about it. In the count() function we debounce the button ...