The basic design for the RGB keypad came from [JMG]’s Arduino ... of the digital potentiometer. With your LEDs and buttons working, you can grab the row_entry_pad_meffect lock code from the ...

The digital Arduino Etch-a-SketchConsists of a couple of wooden boxes which have been equipped with two potenziometers, two buttons, few resistors and a DSUB15 (VGA) connector together with a few ...