Ultrasonic Pi-ano

Via RaspberryPi.org

At the Raspberry Pi Foundation, we love a good music project. So of course we’re excited to welcome Andy Grove‘s ultrasonic piano to the collection! It is a thing of beauty… and noise. Don’t let the name fool you – this build can do so much more than sound like a piano.


What we have here, people of all genders, is really a theremin on steroids. The build’s eight ultrasonic distance sensors detect hand movements and, with the help of an octasonic breakout board, a Raspberry Pi 3 translates their signals into notes. But that’s not all: this digital instrument is almost endlessly customisable – you can set each sensor to a different octave, or to a different instrument.

Andy has implemented gesture controls to allow you to switch between modes you have preset. In his video, you can see that holding your hands over the two sensors most distant from each other changes the instrument. Say you’re bored of the piano – try a xylophone! Not your jam? How about a harpsichord? Or a clarinet? In fact, there are 128 MIDI instruments and sound effects to choose from. Go nuts and compose a piece using tuba, ocarina, and the noise of a guitar fret!

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