Designed with the chipKIT Lenny in mind, yet still able to work on any Uno footprint board, the QuickIO shield is the perfect way to quickly test something out. Providing 4 buttons, two potentiometers and 8 LEDs you can quickly make a simple user interface for experimenting. No need to mess around with wires and breadboards just to add a knob, or a couple of buttons, or an LED or two. Just plug in this shield and away you go.