PIC16F877单片机使用外部中断最简单的演示程序，适合PIC单片机初学者使用。...

一个查找免费短信中心的软件，串口开发！ C#开发!-search for a free messaging center software, serial port development! C# development!

The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16.-The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standard

展示了如何使用QSerialPort通过USB端口发送和接收数据，该程序用Qt C ++做的。实现异步数据接收和错误处理事件。

这个通讯薄程序的界面及功能相对比较简单。 此程序使用文件存储，并不使用数据库。程序将文件映射为内存文件，提高存取速度，并实现了简单的查询及排序功能。 -communications procedures and functions of the interface is relatively simple. The use of this procedure document storage and do not use the database. Procedures for document mapping memory, improve access speed, and to achieve a simple inquiries and sorting functions.

用 Matlab 作图 单极性 NRZ 和双极性 NRZ 的信噪比与误比特率关系 特性作为通信原理测试的一个入门研究

motorola首席技术官的关于硬件系统的软件开发全过程的文档-on the hardware system software development process documentation

蓝牙HANDFREE软件源代码-174,500 Bluetooth software source code

中国移动多媒体广播标准CMMB 新鲜出炉

用UDP写的可靠传输程序源代码,非常有借鉴意义,适合互连网通讯-Using UDP transmission procedure to write reliable source code, learn the meaning of very suitable for the interconnection Netcom inquiry

RN8209计量芯片，采集电压电流，计算电量，有功功率，无功功率，支持防窃电功能，rn8209串口通信，原厂提供的代码，可以下载直接使用。