华为的印刷电路板（PCB）设计规范，程序编写规范等

供C51单片机初学C语言的朋友学习使用的演示程序-C51 single-chip C for beginner friends learning to use language demo program

介绍了一种利用定时中断为单片机编写高音准的音乐程序的方法，并给出实例程序清单。-introduces a timer interrupt to the microcontroller prepared Treble-music approach procedures, and gives a list of examples.

实现 新华龙单片机 AD转换，好东东，会一个就全通了，是学习新华龙的好机会啊。-Hualong realize the new single-chip AD conversion, good Dongdong will be a on the all-pass, is to learn new hualong ah good opportunity.

该程序可实现人机的交流，有键盘、显示、打印机-The program can realize man-machine communication, has a keyboard, display, printer

基于Keil C 平台的，用于ls52的源程序 主要用于检测DA529的操作，给出时序控制源码-Keil C-based platform for ls52 source DA529 for the detection of the main operation, given timing control source

1.The content is too simple 2.Is not a sourcecode or document 3.lost some files 4.Description is not detailed or not correct 5.Compressed file has password 6.Sourcecode duplicate or already exist

1602显示测试程序-1602 shows test procedures

电子密码锁，基于51单片机，简单实用，适用于公司，家庭等。-Electronic locks, based on 51 microcontroller, simple and practical, applicable to the company, and family.

单片机的时钟芯片、液晶芯片、以及温度传感器芯片的c语言编程，为单片机和嵌入式开发爱好者提供帮助-MCU clock chip, LCD chips, as well as the temperature sensor chip, c-language programming for microcontroller and embedded developers to help enthusiasts

比较完成的FAT文件系统与单片实验,本系统利用AVR-Comparison of completed FAT file system and single-chip experiment, the system uses AVR