If you've ever played with motors, you've probably noticed their musical hum as they turn at different speeds, but have you ever thought of putting your motors to use as a musical instrument? While this project probably won't be something that'll make you go out and buy motors and controllers, it's a great project to take on if you have some extra material lying around.
Step 1: Install Phidgets drivers and libraries
Step 2: Connect the motors
Connect stepper motors to the computer with the stepper controllers. Connect each controller to a12VDC 5.0A power supply, like the one that comes with the controller.