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实时时钟芯片DS1302采用串行接口，只需3根引脚便可以完成操作，其使用非常方便。这里采用AT89S52单片机作为外部微处理器，来对DS1302进行控制-Real-time clock chip DS1302 serial interface, only three pins will be able to complete the operation, its use very convenient. AT89S52 microcontroller used here as an external microprocessor to control of the DS1302

DS18B20的管脚定义：1、GND 2、DQ 3、VCC 温度显示用四位，当温度>=100度时，第四位才显示-DS18B20 pin definition: 1, GND 2, DQ 3, VCC temperature display with four, when the temperature

单片机C语言 学习单片机C的好例子 -Singlechip C Language Learning Singlechip a good example of C

WM-02U读卡器VBDEMO,非常好用哦

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.

嵌入式开发板搭建最小系统,在嵌入式开发板上，建立内核，文件系统等等，使最小系统能够在其上运行-to build the minimun system on a board, embedded software programms.you can rely on it to impletement the basic function of an embedded system

开发人员易用的一款进制转换计算器 能大大加快大家的开发速度-developers to use the new base for the conversion calculator you can greatly accelerate the pace of development

51单片机5045看门狗芯片的代码（通过编程）-51 Single-chip watchdog chip code 5045 (through programming)

一个在单片机平台的电梯模拟程序，基本实现了电梯的所有基本功能，可供学单片机的同学参考。本程序使用VHDL语言编写。-A single-chip platform in the elevator simulation program, the basic realization of the elevator all the basic functions, for school students Singlechip reference. This procedure using the VHDL language.

用单片机产生Pwm来控制电机的硬件和软件设计，欢迎下载！-MCU Pwm to produce motor control hardware and software design, welcome to download!