…Here, FFTs are performed on music samples on the Raspberry Pi fast enough to detect a beat, and the Pi relays that information to some teeny-tiny tap-dancers, who produce an automated routine that’s synced to the music.
These little tap-dancing guys are from a post-Christmas sales bin. They’re called Happy Tappers, and are made by Hallmark, who, for reasons known only to them, include a port which enables them to interface with their tippy-tapping brothers and sisters – which makes for exciting DIY project possibilities once you add something that’s able to feed them an input. I’ve never seen them on sale in the UK, but if you’re dead set on making your own tap-dancing Pi project, they seem to be available online at eBay, Amazon US, and at some Christmas shops….
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