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39条码的生成dll,生成的条码保持在数组里(the dll of creating barcode 39)

对一个含有多次谐波的信号作FFT变换，利用相关分析法提取它的工频信号。(For a signal containing multiple harmonics for FFT transform using correlation analysis to extract its frequency signal.)

坐标转换，可将坐标从大地坐标转换为地方坐标并可以反转(Coordinate conversion, coordinate conversion from geodetic coordinates to local coordinates and can be reversed)

基于51单片机的步进电机的控制设计 一圈360度,需要20个脉 冲完成. 3,步进电机具有瞬间启动和急速停止的优越特性. 4,改变脉冲的顺序,可以方便的改变转动的方向(51 step motor control designs around 360 degrees, requires 20 pulses to complete. 3, stepper motor with instant start and stop the rapid superior characteristics based on 4, change the order of the pulse, you can easily change the direction of rotation)

QT开发的能够接收串口数据并将其转化为波形同步实时显示的上位机(QT development can receive serial data and converting it into waveform synchronous real-time display of the upper machine)

DEM中提取地形特征的一个新算法，简单实用(DEM to extract topographical features of a new algorithm, simple and practical)

串口监视工具。可以监视窗口的接受和发送的数据(Serial port monitoring tools. Can monitor the window to receive and send data)

this is a simple traffic light using proteus 8, its very easy, familiar, and u can see the project in youtube

简化Sock连接。采用队列保存Sock的收发消息包，保证消息的处理顺序。(Simplify the Sock connection)

VC++ 6.0源代码程序，功能是利用DirectShow播放视频文件(Use directshow to play video)