flotulopex, It is a set of digital gages used for automobiles. About 3 years ago I gutted a trio of small SUN aftermarket gages in chrome cans and built digital inerds for each. 1 displays water temperature, 1 oil pressure, and 1 battery voltage/current. I beleive the MELABS web site has an intorduction to display multiplexing that you should see and i beleive also some code that you can use as a basis for your program if this helps.

Dave Purola,
N8NTA