Zach writes – “headLamp is about 300 leds soldered into a metal colander (like you use for straining noodles), which happens to be the perfect size and shape for a lamp. The leds form 7 seperate segments of red, green, and blue. These segments are wired to a circuit and controlled by the parallel port. A manual lamp interface as well as an iTunes plugin were written.” – Link.
headLamp: Computer controlled LED lamp