本文利用核心芯片TDA5051A，采用ASK（幅度键控）调制技术，建立电力线通信系统，实现数字信号在电力线上进行传输。 关键词:电力线通信 TDA5051A...

本文结合555Datasheet，图文并茂地的介绍了如何阅读集成电路的Datasheet-555Datasheet this paper, the illustrations of how to read IC Datasheet

海康产品测试过支持的备份设备:一些测试过的备份设备的型号.rar-Haikang Products tested to support the backup device: Some of the backup device tested models. Rar

c语言中间代码生成，输入算术表达式，输出四元式 -c language intermediate code generation, input arithmetic expression, the output quaternion type

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空气湿度报警器，顾名思义，是用来测量空气中的湿度的仪器，他通过一个湿敏电容和一个频率输出电路对空气湿度进行检测，把湿度变化转变成频率输出。再通过单片机把输入的频率转化为湿度百分值并通过LCD显示出来，使人可以通过显示清楚地看到空气的相对湿度。在单片机编程时可以预先设定一个限定值，当环境湿度达到设定的湿度值时电路报警，同时发光二极管变亮，达到湿度报警的目的。-Air humidity alarm, as the name implies, is used to measure humidity in the air apparatus, he humidity through a capacitor and a frequency output circuit for detection of air humidity, the humidity changes in the frequency of the output into. Through the single-chip frequency of the input into a percentile and humidity through the LCD display, one can clearly see through the display of the relative humidity of air. Single-chip can be programmed in advance to set a limit value, when the environmental humidity to achieve set alarm circuit humidity values, while LED light changes to achieve the purpose of humidity alarm.

IAR430编译器错误类型诊断信息。有助于MSP430开发者查询使用-IAR430 compiler error type diagnostic information. MSP430 query help developers use

Windows应用程序，窗口，事件驱动，句柄和Windows消息，Windows应用常用消息-Windows application, window, event-driven, handle and Windows news, Windows applications commonly used news

本文是Bjarne Stroustrup的《Evolving a language in and for the real world: C++ 1991-2006》中文翻译-This article is Bjarne Stroustrup

介绍无线通讯中，提出一种与MIMO（多收多发天线系统）相类似的天线阵列。-introduced wireless communications, and presents a MIMO (Multi resumption multiple antenna system) is similar to the antenna array.

atm的UML设计~~~可以参考一下写得蛮好的-atm UML design ~ ~ ~ can refer to the written very good