- 2x Arduino Uno R3: https://www.sparkfun.com/products/11021
- 2x Wall adapter power supply: https://www.sparkfun.com/products/298
- 1x Xbee wireless kit: https://www.sparkfun.com/products/11445
- 1x Xbee shield: https://www.sparkfun.com/products/9976
- 2x Stackable header kit: https://www.sparkfun.com/products/11417
- 2x Breadboard: https://www.sparkfun.com/products/9567
- 1x Bag of red LEDs: https://www.sparkfun.com/products/9856
- 2x Hook-up wire spool black 25': https://www.sparkfun.com/products/8022
- 2x Hook-up wire spool red 25': https://www.sparkfun.com/products/8023
- 2x Hook-up wire spool yellow 25': https://www.sparkfun.com/products/8024
- 1x Hook-up wire spool white 25': https://www.sparkfun.com/products/8026
- 1x Hall effect sensor: https://www.sparkfun.com/products/9312
- 1x Parallax Ping sensor: http://www.radioshack.com/product/index.jsp?productId=12326359
- 1x Miniature magnetic contact switch: http://amzn.com/B001337AO2
- 1x Large plastic project enclosure, weatherproof: https://www.adafruit.com/products/905
- 1x Grommet 1/4" inner diameter: http://www.lowes.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10151&catalogId=10051&productId=3013200&cId=
- 1x Wire strippers: https://www.sparkfun.com/products/8696