Slide whistles and recorders can be great for learning music, and perhaps a bit of fun, but what about teaching a robot to play such a wind instrument? The Mixed Signal’s MIDI-controlled system could used for just that.
The project is comprised of a 3D-printed fipple and piston that go into a PVC tube, while air input is via a centrifugal blower fan. A plunger with a rack-and-pinion gear are used to move the piston back and forth, changing the note being played.
A keyboard provides the user interface here, though any number of digital audio workstation devices should be able to duplicate this human task if needed. It’s hooked up to an Arduino Due with a CNC shield, which controls the single stepper motor.
You can find more details on the fipple flute on Hackster and Hackaday, and see a demo of it in action below.
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