The embarrassingly easy case mod (color LEDs)
Daniel writes –
“You know all those RGB LED projects with microcontrollers and power transistors and stuff?
Well, this is the almost-too-easy version.
Modern two-pin RGB LEDs are cheap and pretty, and they don’t need so much as a current limiting resistor, if the input voltage is right. Just hook ’em up to about three volts and away they go.
More: continued here