使用gps的控件，利用他了方便进行GPS读写

testcomm 是利用串口RTS、DTR发送微秒级脉冲 ,可广泛应用与工业中.-testcomm is to use serial port RTS, DTR Send microsecond pulse, a wide range of applications and industries.

MsChart图表控件示例源码，看完很快就掌握了MsChart图表控件-Examples of source control MsChart chart, quickly mastered the reading MsChart chart control

用vc开发activex-with vc development activeX

串口画实时曲线，基于com控件的温湿度采集系统设计-Serial real-time curve of paintings, based on the com acquisition of temperature and humidity control system design

高精度定时器，精度达到10ms.可以在VB6中调用，解决VB6中无法满足小于50ms级别的定时问题-High-precision timer, accuracy of 10ms. You can call in VB6 to solve VB6 can not meet the less than 50ms-level timing issues

ActiveX控件的应用与工作原理。ActiveX控件的编写，如何为控件安排属性，方法，事件，属性页，持久性存储，控件如何通知容器自身属性的改变。如何注册控件与取消控件注册。在VB和VC中访问ActiveX控件。-ActiveX controls and application of principle. ActiveX controls in the preparation, how to control arrangements attributes, methods, events, properties page, persistent storage, how to control their own attributes containers notice the change. How to register controls and the lifting of controls registration. In VB and VC visit ActiveX controls.

blueteeth communication source ,written with c language ,simple and easy,run condition Yurbo C 2.0

S curve of PLL System

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以饼形图显示当前内存使用情况，饼形图的颜色可调，另外可以显示当前鼠标位置。-to pie-shaped chart shows the current memory usage of the pie-shaped map of adjustable colors, it also shows the current mouse location.