“I had seen a project on here before to make a sort of trumpet with an Arduino by rigging up three buttons, but its range was limited and it couldn’t play sharps or flats. This design uses a joystick to allow for different ranges that can be reached by tightening one’s lips when using a real trumpet. By using only the X-axis on the joystick, the range is from C3 to G4, including sharps and flats. In theory, by using both axes, the range can be expanded further, but I’d rather keep things simpler and easier to understand.”