这是一个用C语言写的51单片机的51串口通信的程序，里面有非常详细的注释...

LED的电路连接方法，多年经验。有很多种方法可供选择，很重要，希望大家能去持我。-circuit OF led.thank you .It s my own performation,hope you give me a great help.

1602液晶时钟，带仿真-1602 LCD clock, with simulation

rc500 c语言库函数，对RC500的开发提供了捷径-rc500 c language library functions, the development of RC500 provides a shortcut

VC下开发的串口调试工具，界面简单，方便操作，适用于PC机下与单片机通过串口通信-Developed under VC serial debugging tools, the interface simple, convenient operation, applicable to PC machines with single-chip through the serial communication

1602液晶显示，通过键盘按下去上的数值-1602 liquid crystal display, go through the keyboard by the numerical

KEIL中有关电子时钟的源程序，可以在KEIL中模拟实现电子时钟-KEIL in the electronic clock source, you can simulate KEIL realize electronic clock

常用pcb库文件，方便进行电路开发，protel99格式的-Pcb library file used to facilitate the development circuit, protel99 format

单片机的设计程序，我认为很好的，希望大家喜欢-MCU design process, I think that"s good, hope you like them! !

用于排队叫号系统的中央显示大屏控制程序。可以循环滚动显示文字，最大5层。-Call queuing system for its large central display screen control procedures. Could be re-rolling display text, the largest 5 layer.

监视室内温度并获取温度，当温度到达60摄氏度以上即发出警报 -Monitor the indoor temperature and obtain the temperature, when the temperature reaches above 60 degrees Celsius that the alarm