It was somewhere in the end 2006, i was about 13 years old. I recently got a Lego Mindstorms NXT. After playing with it for a while i found that the device would empty its six battery's in just hours. A solution needed to be found.
I remember this was also the time i read about something called 'Arduino' on some black with green website....
1 mm drill
LEDs and Accessories / Light Emitting Diodes (LEDs)