ARM7开发的PWM输出反馈控制电机，采用了PID控制算法，此例中用了LED输出亮度代表电机转速-ARM7 Development PWM output feedback control motor PID control algorithm, in this case using the LED output brightness on behalf of the motor speed

电子大赛源代码，包括线路识别，电机驱动，PWM控制，无线调试模块等,共有需要的同学参考-The electronic contest source code, including line identification, motor drivers, PWM control, wireless debugging module Total need classmate reference

控制直流电机的c语言操作,很是值得大家学习-DC motor control c language operation