The use of microcontroller design of the stepper motor control, SCM use a compilation of language knowledge to the stepper motor control operation. SCM IO through the mouth with the output timing of the square as a stepper motor control signal After signal stepper motor actuators stepper motor, stepper motors and machines connected to the screw, When the MCU output signal after a stepper motor driven operation, Machine control the machining process. simple forward and backward, parking and other operations. Other useful components subsidiary 4x4 keyboard to the right of the state of motor control, and digitally pass inspection stepper motor driven pulse frequency to the motor show. In this design, Screw with the stepper motor and connected to the MCU assembly language procedures in the preparation is the most important places. Stepper Motor。 MCU stepper motor 。actuator drilling 。procedures。 Lathe