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modbus 通讯协议文档，详细描述了RTU、ASCII两种模式下，数据格式。-modbus connection communication protocol document, a detailed description of RTU, both ASCII mode, data format.

非常详细的modbus规范介绍，有串口的也有基于tcp的。。。。一书在手，modebus不用愁。。。。MODBUS标准分为三部分。第一部分（“Modbus协议规范”）描述了MODBUS事物处理。第二部分（“MODBUS报文传输在TCP/IP上的实现指南”）提供了一个有助于开发者实现TCP/IP上的MODBUS应用层的参考信息。第三部分（“MODBUS报文传输在串行链路上的实现指南”）提供了一个有助于开发者实现串行链路上的MODBUS应用层的参考信息。-very detailed Modbus standard, a serial port is based on the tcp. . . . A book in hand, do not have to worry about modebus. . . . MODBUS divided into three parts. The first part ( "Modbus protocol specification") describes the MODBUS handle things. The second part ( "MODBUS Packet Transmission in TCP/IP Implementation Guide"), provides a help developers to implement TCP/IP on the application layer MODBUS reference information. The third part ( "MODBUS Packet Transmission in the serial link achieve Guide"), provides a help developers achieve serial MODBUS link on the application layer of reference information.

可以查看别人电脑的桌面-can view other people"s desktop computers

ZW系列智能盘表MODBUS规约通讯程序演习程序1.0（VB）-ZW-Series Intelligent Table MODBUS communication procedures Statute exercise procedure 1.0 (VB)

I2C-bus specification and user manual Rev.03-19 June 2007.pdf

这个文档详细讲解了在单片机上实现控制GSM模块的格式，对于开发远程通信系统的人员很有用-This document gave a detailed account in single-chip GSM module to achieve control over the format of the remote communication system for the development of personnel is useful

The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16.-The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standard

i hope useful for all student thanks

SIM300 Software 英文手册 pdf,，希望对您有用-SIM300 Software English Manual pdf,, hope you find this useful

一键重启路由器，一键修改路由WAN口MAC地址，无需登录。目前只支持TPLINK路由器，但是可以参考里面的封包。