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.
Four on pins A0-A3 plus RESET
Two 10KΩ trimmers on pins A4 and A5
Eight on pins 2-5 (green), 6-7 (yellow) and 8-9 (red)