用单片机实现电机定时正转停止，由于反转是由弹簧拉回，所以并没有反向的程序，当然也可以有反向运行程序。且按键可调整电机通断电时间-MCU motor timed forward to stop, because the reverse is pulled back by the spring, and did not reverse the process, of course, can have a reverse run the program. And buttons to adjust t