| This thesis firstly introduces the structure of step motor, the working principle and the leading features.The specifications and electrical properties of 28BYJ-48 type step motor is analysed in this thesis.We design the driving part with STC51 microcontroller for the stepper motor and do the software design. The hardware circuit design diagram is drawn with AutoCAD. This project achieves the function of acceleration, uniform speed, deceleration,reversing the stepper motor,digital tube display and speed control module of stepper motor.The thesis compares the stepper motor accuracy for the two different driving mode. |