I have all the parts to make one pf these, I just have to get off my rear and put everything together. The project uses LEDs (red, green, blue) and a PIC miceocontroller to cycle through combinations that are set via three DIP switches. in fact, this is exactly what you need:
– 3 transistors
– one PIC 16F628 and a programmer
– a small perforated circuit board
– some resistors
– a battery holder (4 x AAA)
– a nice casing
– diy silicons (clear caulking – John)
– red, green and blue extra bright leds
Easy, eh?
[via MAKE]