Modbus serial port access through the on

RFM12B and AVR The RFM12B tranceiver module has become quite popular recently due to its low price comparing to other modules on the market. But many people nd it hard to make these tranceivers work (mainly because of buggy programming guide provided by manufacturer, I guess...). This short article contains compact and simple code that can be used just to get these modules running for the rst time. It is based on manufacturer s examle code with slight (but crucial) changes.

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应用背景串口调试助手，可实现上位机与下位机通信，适合新手，通俗易通，只是用来大家参考，由于本人也是新手，如有错误多多包涵。关键技术C#编程，窗体应用程序，代码简洁，接收事件使用了委托，能够实现十六进制和单片机通信，用来大家参考，由于本人也是新手，如有错误多多包涵。

手机客户端和servlet的通讯-client and mobile communications servlet

资源描述 UDP是轻量级，不可靠，面向数据报的，无连接的协议，也能够与可靠性不是非常重要的情况下。 在Qt平台下编程，实现简易的本地主机的UDP报文传输。 QUdpSocket类用来发送和接受UDP数据包，这里的Socket简单来说就是一个IP地址和一个Port端口号，其中IP地址制定了网络中的一台主机，而端口号制定了该主机上的网络程序，这样使用套接字就可以实现网络上两台应用程序之间的通信。

资源描述一个winform的服务端，和一个winform的客户端，web客户端自己去网上找吧。

这是一个利用RS232串口通讯的C++源码.-This is an RS232 serial communication using the C source.

在matlab环境下的简单调频过程的实现-frequency modulation

CRC的全称为Cyclic Redundancy Check，中文名称为循环冗余校验。它是一类重要的线性分组码，编码和解码方法简单，检错和纠错能力强，在通信领域广泛地用于实现差错控制-CRC called the Cyclic Redundancy Check, the Chinese name of the Cyclic Redundancy Check. It is an important class of linear block codes, encoding and decoding method is simple, and error detection and correction capability in the field of communication widely used to achieve error control

BPSK解调的matlab仿真程序，里面包括匹配滤波器，同步，解调，误码计算等-BPSK demodulation of Matlab simulation program, which includes matching filter, synchronous demodulation, BER calculation