Abstract
Stepping motor is a electromagnetic component that can translate the digital input pulse into rotary or linear incremental movement.It is Widely used in ATM machines, medical equipment and devices, precision instruments, industrial control systems, robotics, and other fields. Today, the processor speed and computing capacity is very powerful, PC-based control technology, you can take advantage of the rich PC software to improve the control system of the graphics display, dynamic simulation, programming and diagnostic capabilities. A more user-friendly interface, increased functionality, security, openness. Thus, research and development of PC-based high-performance stepper motor control system momentum, aroused attention.
The main objective of this design is to complete four-beat control to stepper motor control through PC. The design AT89C51 microcontroller as the core of the whole system of control introduced max232 level converter circuit and microcontroller RS232 PC serial communication. MCU I/O port to control the timer interrupt generated pulse amplification circuit through the L298N to drive PX243 stepper motor.Finally, all kinds of control on the host computer can be completed, such as the speed, steering , turns of stepping motor.
Keywords：MCU Series Communication Stepping Motor Control Visual Basic
