Abstract:

On the basis of analyzing pantilt structure, the operating principle of stepping motors and the requirements of the pantilt control system, we adopt the M415B as the stepping motor driver, and develop the hardware and software for the stepping motor control  system on the basis of the AT89C51 microcontroller. The upper computer system is written by Virtual Basic Programming language, and we realize communications between the microcontroller and the controller through USBtoserial ports. The control system has been successfully applied in the laser rotating of the noncontact body scanning system.

Key words: stepping motor;microcontroller;pantilt;subdivided technology;non-contact body scanning