BiPolar Stepper with L298 Dual H-Bridge Motor Controller & Arduino

This is a simple "Proof of Concept" using an L298 Dual H-Bridge motor controller and an Arduino UNO to control a small salvaged printer stepper motor. The motor in question is a Bi-Polar 24 volt stepper motor 7.5 degrees per step. The set up uses a simple 5 volt wall wart for power and then a simple bread board to allow me to have power inputs to the Arduino UNO AND the motor. This way, the Arduino UNO isn&supplying the motor with power. Since the L298 is ideally designed to operate at 7 volts or more up to around 37 I believe... I didn&want to source power to the motor from the Arduino UNO even though with 5 volts it is likely safe. In the future, I&use a full 24 volts to drive the motor to check the torque. The simple code for this test can be found in a Google doc: