在at89c51上实现webserver

简易电子琴的设计 一、 设计题目： 设计一简易电子琴，要求能够发出1、2、3、4、5、6、7等七个音符。 使用元件：AT89C51、LM324，喇叭，按键等 二、 设计目的 （1）能够对电子电路、电子元器件、印制电路板等方面的知识有进一步的认识，独立对其进行测试与检查。 （2）熟悉8051单片机的内部结构和功能，合理使用其内部寄存器，能够完成相关软件编程设计工作。 （3）为实现预期功能，能够对系统进行快速的调试，并能够对出现的功能故障进行分析，及时修改相关软硬件。 （4）对软件编程、排错调试、焊接技术、相关仪器设备的使用技能等方面得到较全面的锻炼和提高。-simple design of a flower, a design : a simple flower design, request, sent seven notes. Use Element : AT89C51, LM324, speakers, such as two keys, designed (a) to be able to electronic circuits, electronic components, such as printed circuit boards with the knowledge to further understanding of its independent testing and inspection. (2) familiar with the 8051"s internal structure and function and the rational use of its internal registers can be completed software programming design work. (3) To achieve the desired functionality, the system can quickly debugging, and the right to function failure analysis, the timely revision of the related hardware and software. (4) The right software programming, debugg

这个是录音琴的程序,用光电感应器来检测琴键的动作.并且将他记录下来,可以回放.-This is a recording Guoqin procedures, using photoelectric sensors to detect movement keys. And his record, you can playback.

用C语言编写的对时钟芯片ds1302读写的单片机程序，内附详细的注释说明。-Using C language to read and write to the DS1302 clock chip microcontroller procedures, containing detailed notes.

51单片机常用子程序大全，包括多字节加减乘除，码字转换，浮点数格式化-51 microcontroller used subroutine Daquan, including multi-byte arithmetic, code conversion, floating point format, etc.

Eeprom操作, 可对EEPROM进行相应的读写等操作-eeprom operation

usb-串 口 转 换pcb板 图,pcb格式-usb-serial conversion pcb map, pcb format

9S12DT128B sci 模块介绍 英文-Introduction Module 9S12DT128B sci English

c语言写的des(430单片机) 用430单片机实现的DES加密系统-c des written language (SCM 430) 430 MCU with the DES encryption system

本文作者采用AT89C2051单片机和温度传感器DS18B20从硬件和软件两方面介绍了一款简易数字温度计的设计过程，  并对硬件原理图和程序流程图作了简洁的描述。数字温度计与传统的温度计相比，具有读数方便，测温范围广，测温准确，其输出温度采用数字显示，主要用于对测温比较准确的场所。-The author of this article using AT89C2051 MCU and temperature sensor DS18B20 from both hardware and software, introduced a simple digital thermometer of the design process, and schematic diagram of hardware and procedures were concise description of flow chart. Digital thermometer with a traditional thermometer, compared with a reading of convenience, a wide range of temperature measurement, temperature measurement accuracy, the output of the temperature digital display, mainly used for more accurate temperature measurement sites.

很完整的门禁系统原码，希望能帮助大家更好的学习学习一下