一个简单的串口接口

设计Arduino的销13被连接到220欧姆的电阻。连接到晶体管2N222A电阻，然后连接到基座。一条腿被连接到地，另一条腿被连接到蜂鸣器。此外蜂鸣器连接到Vcc。蜂鸣器，请12伏变为5伏。

一个简单的服务器端应用程序，功能：监听客户端的连接请求，为客户端连接请求建立SOCHET队列，处理各客户端发送来的数据，并向相应的客户端发送应答消息，更新服务器的端口号-a simple server-side applications and functions : listening to the connecting client requests for client requests to establish SOCHET queue address the client to send data to the corresponding client send responses news update server port

最简单的VC编写的OPC客户端程序，本程序为OPC异步多组型传输。-The simplest VC prepared OPC client program, the procedures for the OPC-based asynchronous multi-group transmission.

win32api 可查询api的用法-Win32API available api usage

拨号服务器的服务器端代码，针对E5112设计，请与客户端代码配合使用-dial-up server to server-side code against E5112 design, and the client code used in conjunction with

二维快速离散变换,可快速实现二维快速离散变换，不可多得的程序。-Two-dimensional fast discrete transform, can quickly realize two-dimensional fast discrete transform, a rare procedure.

一个基于UDP的网络编程，我自己写的，希望对大家有帮助-UDP-based network programming, I wrote it myself, in the hope that everyone has to help

这个也是关于空间谱的matlab 挺好的 可以-This is on the spatial spectrum of matlab can be quite good

TCP 聊天程序服务器端，详细讲述开发过程和理论依据-TCP chat sever side, describe detailedly of the development process and theory base.

The AsyncIO sample (also called the "PDC" sample) is a character-mode program for searching the files in a directory tree for a match against a pattern. It uses multiple threads, with each thread processing one file at a time, accumulating its matches. When each thread finishes searching a file, the thread sends the matches contiguously to a standard output.