alex_weber‘s first Instructable is a cool one: an LED project that learns and replays sequences of light. Alex’s project is built around the Atmel ATtiny13v, an LED, and a Light Dependent Resistor-the whole thing is powered by a CR2032 battery. Link


  • TRIKLITS – Color changing LED light strings – Link
  • Homemade LED shirt – Link
  • HOW TO – Build your own $10 light meter (visible, IR, UV…) – Link