LED's must appear to 'twinkle'
LED's should 'twinkle' at different rates, as much as possible to appear random
LED's should be dimmable by a potentiometer in the hall
Device must be able to use 12V DC input
Must use existing 8 strings of 3 LED's each
The device must respond to the following commands over the serial channel:
NORMAL - normal twinkling mode
ON - all LED's full on
OFF - All LED's off
SHOW - display key operating parameters on the console