c51单片机编程。利用串口从电脑上向单片机发送数据，单片机接受并返回数据，同时控制单片机实验板上的LED灯。-c51 microcontroller programming. Using the serial port from a computer to send data to the microcontroller, microcontroller to accept and return data, SCM test panel LED lights.

pc rs232 51单片机 LED 控制-pc rs232 51 microchip LED control