华为的印刷电路板（PCB）设计规范，程序编写规范等

This document provides information that supplements the Silicon Labs Interrupt Driver, which includes instructions for installing the driver and information for building the driver.

MAX7219驱动例程，工程内还有DS1302等驱动代码，是学习写驱动不错的工程。-MAX7219-driven routines, engineering, etc. There are DS1302 driver code, is to learn to write good works driver.

ds时钟芯片编程 对ds时钟芯片进行设置时间，读取时间等的操作-ds clock chip programming right ds clock chip for set-up time and the time to read the operation

单片机控制GSM的短信发送。AT指令的介绍.-GSM single-chip microcomputer to control the message sent. Introduction AT commands.

89C51 单片机I_O 口模拟串行通信的实现方法--Simulate I_O serial port communication in 89C51 SCM.

单片机入门程序，对于开发自己的系统很有帮助。--Source codes for an infrared remote control. It is an entry-level program for SCM.

用来控制无线数传电台收发信息，用于工业控制领域的远程通信-used to control wireless data transmission radio transceiver information to be used for industrial control areas of remote communication

MAXIM公司a_WIRE温度传感器DS18b20的c51源代码-MAXIM company a_WIRE temperature sensor DS18b20 the decoder source code

ICCavr编写的TWI总线协议读写函数，测试通过-ICCavr prepared by TWI bus protocol to read and write function, the test

：介绍一种无人值守的停车场管理系统的设计。该系统前端主要由GsM 短信模块TC35i和AVR 单片机At― megal6组成，安装在停车场的每个进出口，通过接收车主的手机短信控制进出口道闸的开启并由短信扣取停车费用，各进出 口电路都与监控中心计算机连接。-: A unmanned car park management system design. The system front-end GsM messages by AVR module TC35i and At-megal6 composed of single-chip installed in the parking lot of each import or export through SMS to receive the owner to control the import and export of道闸open parking fees deducted by SMS , the import and export of circuits are connected with the monitoring center computer.