串口自动检测

说明：  1 button device with bascom avr

C#写的控制串口继电器模块的代码，通过发送指令来控制多路串口继电器的开关。(Serial port control relay module C# to write the code, switch by sending commands to control multiple serial relay.)

说明：  自动识别电脑有多少个串口，关自动加载!!!(Automatically identify the number of serial computer, turn off automatic loading )

利用MSComm控件实现字符型数据发送与接收(MSComm control to achieve the transmission and reception of character data)

串口调试，visual basic撰写，可以发送包括word格式，excel格式，text格式等文件(Serial debugging, visual basic writing, including word format can be sent, excel format, text format file)

用vb6.0做的一个小的串口测试程序.可以实现正常通信(Used vb6.0 to do a small test program serial)

VB环境下简单的串口测试程序，测试两台主机通过串口是否能够实现数据传送，可以传送数字、字符串及汉字。(VB environment, a simple serial test program, test whether two hosts can be achieved through the serial data transfer, can send numbers, strings and characters.)

串口收发字符型,没有选择COM口参数，固定为COMPROT 3 115200(Serial transceiver character type, no choice of COM port parameters, fixed to COMPROT 3 115200 )

STRING MATHMATICAL PLEASE COMMENT

VB和信捷PLC通讯的源代码，包括读写，置位，独一无二哦，网上都找不到的。(vb and thinget plc communication program source,good thing)