Scanner music

scanjet

Continuing our trend of peripherals modified to perform functions that aren’t actually useful: here’s how to play music on your scanner. The HP ScanJet 3c/4c have a variable speed scan head that is driven by a stepper motor. The Play Tune command can be used to move the head at different frequencies. Here’s a video of a scanner playing F?Elise. The site we’re linking to has the source code to do this, but newer HP scanners may have hardware activation built-in, according to these two Easter eggs.

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