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Take Me To The Gadgetory!
Arduino-Powered Clock (From An Old Mac Mini)

Posted March 22, 2013 by Chris

“After the untimely death of my Mac Mini (the last thing that I’ll ever buy from Apple), I recycled it into a clock display using LEDs. Technically, there’s no rocket science involved: an Arduino uses an external clock and displays a matrix of 8×6 colored LEDs for hours, minutes and seconds. A last line of LEDs acts like a pendulum.”
[Link Translated To English]

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