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 ...

The decimal number increases from 0 to 255 each time the momentary push-button is pressed. For example the number 0 is 00000000 in binary so no leds must be ON, number 1 is 00000001 so only the ...