If you’re sick of getting information from glowing screens, this project is for you. This brilliant clock draws the time on a Magna Doodle, then wipes the digits that have changed, and draws the time again, over and over. It’s powered by an Arduino Nano, three stepper motors, and various other electronics – we want one for the office. Every hour it’ll change to a random font stored on an SD card – the maker advises using fonts that don’t overlap, as the machine needs to be able to wipe off the digits when the time updates.
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