Check out this awesome Etch A Sketch clock that displays the time. Using a computer, motors, and probably some rubber belts (to turn the knobs), the clock re-draws the time every minute. You can see it flip over to erase itself once a minute has passed. It’s an amazing sight. Developed by Angela (angelabuilds), she states that the Etch A Sketch clock is based on the “Arduino platform and references Scott Fergerson’s awesome CNC EAS as well as Douglas Jones’s excellent site on steppers.”

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Via: MAKE