51单片机与上位机之间的串口通信 控制LED亮灭并发送到上位机 -51 and serial communication between the host computer to control the LED light off and sent to the host computer

通过运用swtich语句的控制单片机P0口8位LED的点亮状态-Through the use of single-chip control swtich statement P0 port 8 LED is lit

LED音频频谱，自己编写，单片机控制，希望对大家有些帮助。- LED audio spectrum, I have written, microprocessor control, we want some help.

点亮P1口的一个LED灯 该程序是单片机学习中最简单最基础的， 通过程序了解如何控制端口的高低电平-A leds light up P1 mouth The program is the basis of a microcontroller learning one of the most simple, Through the application to know how to control the high and low level of port