I just unscrew my old printer. Inside my printer there has a 12V bipolar stepper motor. I have search through the internet and find it hard to find a driver to drive my 12V bipolar stepper motor. Actually I need a driver to control my motor speed and direction. A motor direction can be control by voltage (Example: 5V is clockwise or 0V is counterclockwise) because I need to use my PIC, microcontroller to control its direction. Can anyone help me? Thank you first for your kind help.