How do you use a stepper driver with the Arduino? I want to use the stepper() library from Arduino and have it be encoded and used to drive a stepper motor. I saw on the website that you need an H-bridge transistor array to go in between the Arduino and the stepper motor. I'm using a bipolar stepper with 4 pins. I know I need to connect the A+ and A- and B+ and B- on the stepper driver but how do you hook the Arduino to the stepper driver??