这是一个用VC编写的串口程序 内容很全，可以学习借鉴。

VB连接S7 200 PLC的PC ACCESS服务器的OPC源码，很详细-VB to connect the S7 200 PLC

dephi的串口通信例程 用到了SPComm控件-dephi of the serial communication routines used in the control of the SPComm

这个是数据结构的上机实验报告哦，实验题目是两个多项式相加 -the data structure of the machine experimental report Oh, is the subject of two experiments together polynomial

新个GSM模块收发手机短信源程序,非常值得借去借鉴。-The new module of GSM mobile phones to send and receive message source, very worthwhile to learn by.

在DLL和主程序中使用接口实例共享变量,ImageList(可以扩充共享数据链接) 受一位网友之托。粗作，高手不要下。 你可以试着更改Edit框中的字 然后按下chang login name 这样可以在DLL得到相应的值。 粗作。高手不要下-In DLL and main program interface examples of the use of shared variables, ImageList (can be expanded to share data link) by one of the occasional users. Rough for, you do not have. You can try to change the Edit box and then press the word chang login name in the DLL would be a corresponding value. Rough for. Players do not have

FD30调频无线对讲机 电路原理图 很难得的资料！-FD30 FM wireless intercom circuit diagram of information hard to come by!

/*CHECKED * Function: time.c Project: DNP * * * * DESCRIPTION: * * This file contains functions for converting between * DNP time format and RTU time format (rtc counter type). * * DNP format is to express the time in the number of milliseconds * since the start of 1970. * * * REVISION HISTORY: * * Num Modified by Date Reason * --- ----------------------- --------- ------------------------------- * * */ -/*CHECKED * Function: time.c Project: DNP * * * * DESCRIPTION: * * This file contains functions for converting between * DNP time format and RTU time format (rtc counter type). * * DNP format is to express the time in the number of milliseconds * since the start of 1970. * * * REVISION HISTORY: * * Num Modified by Date Reason * --- ----------------------- --------- ------------------------------- * * */

发送短信源程序，目的是在windows mobile上实现短信发送功能-SendingSms

基于奥地利微电子的as3992芯片的超高频读写器源代码，主控制芯片为c8051f340，是用频率范围850MHz以上，读取距离0-3M.

实现MSN自动转发消息的功能，利用了MS提供的MSN com接口，直接调用就可以了，也可以获取所有联系的列表，具体的接口参照MSDN上的说明-achieve MSN automatically forwarded to the news function, use of the MS MSN com interface, called directly, and they can also can get a list of all links, the interface reference to the specific instructions on the MSDN