An Arudino powered pong clock used the classic Pong video game to tell the time, and has multiple display modes to choose from.
The 2 players automatically win and lose so their scores show the hours and minutes. It is based on a clock by Nick Hall.
This is the 2nd version of my clock and now displays temperature in slide mode and also has a timer in normal mode. The 1st version can be found here Pong Clock Mk1 instructable
The clock has lots of different display modes to choose from:
Pong Clock, Large Digits,Time written in words, e.g. “Ten Past Twelve”, Time and date with seconds,Time and date with seconds and a slide effect,
Options-12/24 hour option, Brightness option, Random clock mode option (changes the display mode between Slide with temp and Pong see bottom for details), Daylight saving option to add an extra hour.