此文章是关于89s51单片机的简介，是单片新手来说的一个很好的教学指导。...

短信实现远程监测系统短 信实现远程监测系统短信实现远程监测系统-SMS Remote Monitoring System Remote Monitoring System SMS SMS remote monitoring system

这是参加电子设计大赛时的作品：红外遥控小车：用红外线通过一块AT89S52单片机发射信号即编码，并用红外接收头接收信号；接着再用另一块AT89S52单片机对红外发射出的信号编码进行解码，最后再用一块AT89S52单片机用解码所得码值编写程序后驱动步进电机。步进机功能启动后不仅能使受控小车向前后左右四个方向前进和转弯，而且还能控制小车再地上转动并留下方形或圆形等形状。-This is the time to participate in Electronic Design Contest works: infrared remote control car: Using infrared transmission signal through an AT89S52 microcontroller that is encoded and used infrared receiver to receive the first signal and then using the other an infrared emitting MCU AT89S52 code and decode the signal and finally an AT89S52 microcontroller then proceeds with the decoding key value of the preparation of procedures to drive a stepper motor. Stepper machine function activated not only make the car forward in a controlled direction and after about four turns, but also to control the car and then turned and left the ground such as square or round shapes.

串口是单片机重要的功能部件，通过简单的串口编程，让初学者进入16单片机的世界-Serial single-chip are the essential features through a simple serial port programming, so that beginners to enter the world of single-chip 16

单片机菜单程序框架，多级菜单，简易数结构，方便移植-Singlechip Menu Framework, multi-level menu, a few simple structures to facilitate the transplantation

单片机8051 MTV512,用了串口缓冲区收发合一的方式,中断 -Singlechip 8051 MTV512, serial buffer used to send and receive one way, interrupted

在单片机和DDS专用芯片进行控制，再显示-DDS special chip in the microcontroller and control, and then display

51单片机P2口接4*4键盘的行线和列线；红灯亮时进行频率输入；绿灯亮时进行占空比输入；频率值暂定在100到60KHZ之间；输入频率和占空比时要输够六位整数，不够的在前面补0；占空比以百比数（0-100）形式存在。-51 Singlechip P2 mouth then 4* 4 keyboard line and column line red light when the frequency of input green when the input duty cycle frequency value is tentatively scheduled for between 100 to 60KHZ input frequency and duty than enough to lose six integers, not enough to fill in front of 0 duty cycle than a few hundred (0-100) form.

两个7段共阳LCD显示器，可以调整倒计时时间-A total of two 7-yang LCD display, you can adjust the countdown time

存储器 24c04 eeprom 51系列 汇编的源代码-Memory 24c04 eeprom 51 Series compilation of source code

超声波测剧驱动 40KHZ 频率 范围达到50CM 以上-Ultrasonic measurement-driven drama 40KHz frequency range to reach more than 50CM