How Do You Build A Stepper Motor Controller?
For precise control of a motor, you can’t just hook it up to a power source and let it run. You need exact position, speed and control. You might want to make a robot or turn your webcam using your computer. You might want to control the speed of your motor. Maybe you want to synchronize a couple of motors. Better angle resolution allows fine control of the location on the motor and less “jerky” motion. But how do you control such a beast? This article will show you how to make a stepper motor controller using your PC and an old printer cable called a DB-25. Step 1 Hook up your DB-25 cable to your old computer. This is the cable that you probably used for your printer before the year 2005. It’s called a DB-25 because it has 25 little pins sticking out of the end that used to go into your printer. Don’t forget that the stepper motor you use has to be unipolar for this set of plans. Step 2 Solder all of the parts together, taking care not to damage the parts as they heat up. Heat the par
