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
If you haven't already done so, follow the instructions to install the Phidgets drivers and libraries (direct download link) on your computer. You can get a quick tutorial on using Phidgets in Visual Basic on the Phidgets wiki, but it's not necessary to cover this beforehand.
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.