navigation with bluetooth FW

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This package is a special version of the Reed-Solomon package

检测网络连通性代码-detection network connectivity code

汉字的hex内码察看器，对用LCD的同志会节省不少查表的时间-characters hex code inspected on the use of the LCD"s will save a lot of time Lookup

chuankou 通讯 个话题，大家可能再熟悉不过了，网上资料很多，因为这是linux下编程比较重要的一个方面，懂这方面的人很多；这里我只是想给初学者简单的介绍下这方面的知识：

带有wsgiref的简单服务器和带有请求的简单客户端。

一个串口调试软件的代码，很好用 一个串口调试软件的代码，很好用-a serial debugging software code, with a good serial debugging software code, easy to use

用S7-200PLC的自由口模式和VB中的MSComm控件方便地实现了计算机与S7-200（CPU224）PLC的通讯。计算机作为主站,用户通过计算机可以方便地设置房间的控制指令并向PLC发出控制或监测命令， PLC作为从站来响应计算机发送的指令并采取相应的动作并将房间的电、水、热信息发回到计算机。用户可以通过电脑屏幕实时地监视到房间的电、水、热信息并进行相应的处理。-with S7-200PLC the Free Port Mode and the VB MSComm to realize a trap Computer and S7-200 (CPU224) PLC communications. Computer as a master station, Computer users can easily set up control rooms PLC issued directives to control or monitoring orders, PLC as from the station to respond to orders sent by the computer and take corresponding action will be room for electricity, water, Heat fat information to the computer. The user can screen real-time surveillance of the room electricity, water and heat information and handled accordingly.

各种通信方式原理及其课件，从最基础到最新通信技术-Various means of communication principles and courseware, from the most basic to the latest communication technology

how to set up a pptp vpn connection? detailed steps with screen-shots