智能车识别电磁，智能导航，实现加减速，转弯，停止等功能-smart car recognizes electromagnetic field,intellective navigation,relizing speeding up and slowing down,etc

TQ2440开板板上的电机PWM驱动程序，可以实现前进、后退、转弯、变速等功能。-TQ2440 open PWM motor driver on the plate board, can achieve forward, backward, turn, speed and other functions.