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bujindianjiqudong
- PC机通过串口向单片机发送命令,单片机驱动步进电机工作在正转、反转、正转n圈后反转,反转n圈后再正转,启动、停止、转速设置等功能-PC through the serial port to send commands to the microcontroller, the microcontroller to drive a stepper motor in forward, reverse, forward n laps after reversal, reverse and then for