Arduino Projects A collection of simple Arduino projects with lights, buttons and others. Light led while pressing button, 1 Led, 1 Button Toggle led with button push, 1 Led, 1 Button Logical Gates (AND, OR, XOR), 1 Led, 2 Buttons Logical Gates (AND, OR, XOR), 3 Leds, 2 Buttons Traffic Lights, 3 Leds Potentiometer Led Array, N Leds, 1 Potentiometer