It's built out of a regular Arduino UNO, pressure sensors made from velostat, and RGB LED strip, and 7 segment LED display.
Source code for the games is available on github.
Step 1: Gather Materials
- 2'x2' sheet of 1/4 inch luan for the target segments
- 2'x2' sheet of 3/4 inch faced plywood as a backing board.
- a sheet of Pressure-Sensitive Conductive Sheet (Velostat/Linqstat) for the pressure sensors (http://www.adafruit.com/products/1361)
- any old 5v arduino of your choosing (I used an uno)
- a big 7 segment display (http://www.adafruit.com/products/1269)
- a strip of 24 individually addressable RGB LEDs (http://www.adafruit.com/products/1461)
- some solid core wire
- 4 1K resistors
- some thin foam or thick cloth to act as a shock absorber. (1/8" foam used in construction to separate 2by material from concrete available at any building supply works great)
- fine metal mesh (like from a screen door, though should be metal, not plastic)
- scotch tape
- small brass screws and washers for attaching the target to the backer board
- Female headers to make connectors to plug into the Arduino and the 7 segment LED display. (http://www.adafruit.com/products/598)
- 2 power supplies, one for the Arduino (9 or 12v) and one 5volt for the LED strip. (The arduino 5v vcc doesn't provide enough current for the LED strip).
- Section of 2x2 pine or other wood for legs of the backer
- Jigsaw for cutting out curves in the target backer board
- Pull saw or other fine saw for cutting the target pieces
- Hole-saw for cutting the center target piece
- Hand saw or circular saw for cutting the backer board
- Sand-paper or orbital sander
- soldering iron
- hot-glue gun
- drill with various sized bits
- Razor blade or utility knife and scissors for cutting foam shock absorber