Craig Hickman created this simple Arduino powered LED toy as an experiment in CNC machining. The case is made of clear plastic, which allows the viewer to marvel at his homemade Arduino board.
The LEDs change flashing patters whenever the luminosity level dips below threshold. This lets you change patterns by passing your hand over the device. It also contains a cell phone vibrator to let you know it’s turned on and to give it an extra sense of presence when it’s in your hand.
The Blink Box – Link
Buy an Arduino in the MAKE store – Link
Arduino/LED Matrix that streams Twitter feeds! – Link