OPNET仿真实例，有助于初学者的快速学习。

一种新的滤波器方法，希望大家能一起学习。-A new filter, and I hope that everyone learning together.

usb 通讯程序源码-usb communication procedures FOSS

use pic16c57 to generator dtmf in telephone-pic16c57 to use in telephone generator Pages

设计了一个FIR带通滤波器，需要的可以参考-Designed a FIR band-pass filter, need to refer to

串口通信的源代码，很好用！-serial communication source code, easy to use!

双音多频（DTMF）信号发生器的使用源程序，vc 编写，与《双音多频（DTMF）接收器的使用源程序》联合用-Dual-Tone Multi-Frequency (DTMF) signals using the generator source, vc preparation, and "Dual-Tone Multi-Frequency (DTMF) receiver to the source using" joint use

zigbee网络中存在不同功能的节点，不同功能的节点组成一个组，从而减少通信，实现命令同步，zigbee通信方式有广播点播和组播，此时应用的为组播方式。 

YAMAHA的铃音芯片的测试程序，用于40和弦的MA-3芯片。源代码为标准C编程。编译环境为TI的CCS，硬件环境为TI的OMAP1612。-YAMAHA rings chip testing procedures for 40 polyphonic MA-3 chip. Source code for the standard C programming. Environment compiler for TI"s CCS, the hardware environment for TI"s OMAP1612.

误码率仿真讲义，在matlab环境中如何进行接收数据的误码率计算

some articles about Wirless sensor web