Si4421（433M无线收发模块）打包资料, 包括中文手册，中文资料，例子程序，基本电路，模块设计参数及图片。-Si4421 (433M wireless transceiver module) package of information, including the Chinese manual, the Chinese data, example programs, basic circuit module design parameters and photo.

NRF24l01无线232通信的收发程序，我刚开始编程程序难度不高。-NRF24l01 232 wireless communications transceiver procedures, I started programming the difficulty is not high.

sep路由协议是无线传感器网络中一种典型的改进分簇路由协议,代码实现了无线传感器网络中收发封包的过程-sep routing protocols for wireless sensor networks in a typical improved clustering routing protocol, code implementation process in wireless sensor networks to send and receive packets