Hackaday (unofficial) June 16, 2021 12:00am Cheap, Expandable Floor Piano Plays with Heart and Soul #arduinohacks #musicalhacks #arduino #arduinomega #floorpiano #leds #mpr121 #hackaday posted by pod_feeder_v2 Cheap, Expandable Floor Piano Plays With Heart And Soul Ever since we saw the movie Big, we’ve wanted a floor piano. Still do, actually. We sometimes wonder how many floor pianos that movie has sold. It’s definitely launched some builds, too…