标准IIC协议通信程序，能读写EEROM、实时时钟，使用方便，可靠！-Standard IIC protocol communication procedures, can read and write EEROM, real-time clock and easy to use, reliable!

开发短信，在WINDOWINS环境下的开发程序，可以实现短信的收发功能-development of SMS, WINDOWINS environment in the development process, can achieve SMS transceiver functions

一个基于stc89s52 nRF2401的demo代码，-Stc89s52 nRF2401 based on the demo code,

以C8051F020单片机做的多功能计数器，2008山东大学生电子大赛题目。可以实现频率、周期、时间间隔等测量，可以LCD显示、语音报告结果，并能测试温度、显示时间（DS1302）。-C8051F020 single chip microcomputer to do multi-function counter, 2008 e-Competition topic Shandong college students. Can achieve frequency, cycle, time interval measurement can be LCD display, voice report on the results, and test temperature, indicating the time (DS1302).

源程序51与PC通信原理及实现.rar-source 51 and PC Communication Theory and Implementation. Rar

基于51单片机的I2C通信程序，可以顺利实现I2C通信-Based on 51 MCU I2C communication program can be successfully I2C communication

单片机控制键盘和led，键盘送入的数据在led 上显示，数据满四位后，键入的第5位数据在个位显示，前四位清零。-MCU control the keyboard and led, keyboard into the data led the show, data-4, Type the first five places in the data revealed that four former reset.

ch375的USB驱动打印程序 很有用-ch375 printing process of the USB drive is useful

一个TWI通讯程序，是用C语言写的，内含头文件和主程序-A TWI communication program is written using C language, contains header files and the main program

单片机 关于遥控 AT89S51-microcontroller on the remote control AT89S51