ACR122U-Sample-Codes_CPP

AGPS定位基本原理浅析，AGPS（Assisted GPS，A-GPS，网络辅助GPS）定位技术结合了GPS定位和蜂窝基站定位的优势，借助蜂窝网络的数据传输功能，可以达到很高的定位精度和很快的定位速度，在移动设备尤其是手机中被越来越广泛的使用。(AGPS positioning the basic principles of analysis, AGPS (Assisted GPS, A-GPS, network-assisted GPS) positioning technology combines GPS positioning and cellular base station location advantage, with data transmission function of the cellular network, can achieve high positioning accuracy and very fast positioning speed, especially in the mobile phone devices are more widely used.)

一个很好的关于微软的mschart的例子，自己做的，希望可以给大家帮助(A very good on Microsoft)

多协议文件传输c/s网络应用设计与实现,程序用 TCP/UDP 两个协议模拟多协议服务器。首先服务器端要将两种协议的套接字创建好，并且监听 TCP 端口的连接。必要时使用select函数来进行多连接处理和非阻塞处理。而客户端直接可以按照发送的地址和端口号来进行通讯。 首先要运行服务器端，服务器会监听 TCP 端口。然后运行客户端，根据事先设定好的 IP和端口，就可以进行连接传输数据了。 程序实现的关键步骤： 以TCP协议为例 服务器端： 1.创建套接字；2.绑定端口；3.进入无穷的循环；4.接收请求；5.处理请求；6.应答。 客户端： 1.找到服务器的IP地址和协议的端口号；2.创建套接字；3.确定连接需要任意的，没有使用的端口号允许TCP去选择一个；4.将套接字和服务器连接；5.使用应用层协议和服务器交互；6.关闭连接。 (Multi-protocol file transfer c/s network application design and implementation of programs simulate multi-protocol server with TCP/UDP both protocols. First socket server to create a good two protocols, TCP port and listens for connections. If necessary, use the function to handle multiple connections and non-blocking treatment. And the client can follow directly address and port number to communicate. First run on the server side, the server listens on TCP port. Then run the client, according to pre-configured IP and port, you can connect the data transmission. The key step program implementation: In TCP protocol as an example Service-Terminal: 1. Create a socket 2 bound port 3 enter an infinite loop 4. receiving a request 5. processing requests 6 response. Clients: 1. Locate the server s IP address and protocol port number 2 creates a socket 3 connections need to determine arbitrary, unused port allows TCP to choose a 4 and the socket server connections 5 using appli)

HC-05蓝牙模块的使用，包括全部参数，外部电路搭建，AT指令等(HC-05 Bluetooth module to use, including all parameters, the external circuit to build, AT commands, etc. )

金笛短信VC动态链接库开发例程，文档，教程(VC SMS金笛development of a dynamic link library routines, documentation, tutorials)

说明：  并口库函数，对于并口控制时必须用到的库。(Parallel library function, the parallel port control library must be used.)

DSDV协议在ns2中的实现，可以直接使用，无需调试(DSDV protocol implementation in ns2, can be used directly, without debugging)

说明：  一个简单的计算器，可以实现加、减、乘、除、平方、开方的计算。(A simple calculator can be achieved add, subtract, multiply, divide, square, square root calculations.)

说明：  用VC编的基于DirectSound的声音播放器，适合多媒体学习之用(VC series based on the voice of DirectSound players, suitable for use multimedia learning)

车载GPS国家标准,JT-808协议规定了车载设备必须上传的相关定位数据(national stand for car)