This is a shield for the Arduino microcontroller board that has all sorts of fun do-dads to hack on:

• 3 x linear sliders w/ integrated LEDs (each independently hooked up to PWM)
• 3 x pushbuttons
• 2 x indicator LEDs (each with a PWM)
• 1 x piezo buzzer (for making noise!)
• 1 x temperature sensor
• 1 x light sensor
• 1 x knock sensor
• 1 x 7 segment LED (with shift register)
• power LED and reset button

More info at: http://www.zachhoeken.com/danger-shield-v1-0

Assembly and usage info is at: http://www.zachhoeken.com/danger-shield-v1-0