Abstract:

AT89C52 single chip microcomputer is used as massager controller which generates pulse width modulation waveform to control the dc motor speed and the vibration speed and amplitude so as to realize intelligent massage.The dc motor chip L298N is used to drive 12V dc motor to realize the forward and backward turning and multi-stage speed adjustment of the motor.The massager gear position and the forward and backward turning status are displayed on the LED.This intelligent massage device has the advantages of low production cost,convenient use and various functions.

Key words: AT89C52, single chip microcomputer, intelligent massager, DC motor, pulse width modulation