Modem_source

vb 串口上位机 很简单的一个版本，大家自己扩展功能吧 (com executed on pc,it s a simple version ,easy for expansion)

说明：  VB做的一个短信收发的例子,功能比较强大,可以好好参考(VB do an SMS transceiver example, function more powerful and can make reference to)

调试串口的程序，本程序运行于PC机，是开发串口电路的好帮手。(Debug serial procedures, the program runs on PC, is to develop a good helper serial circuit.)

Windows串口编程例子(The example of uart in Windows)

多线程串口类及其使用方法，包含完整的CSerialPort类及其使用方法。(A communication class for serial port)

通过和OMron PLC通讯，实时监控自动化设备运行，并下发指令控制(Through the communication with OMron PLC, real-time monitoring of automatic device operation, and instruction control)

用VB编写的FX系列PLC通信动态链接库,用户只需调用API函数就可以简单的实现串口通讯(VB prepared by the FX series PLC communication dynamic link library, Users only need to call API functions can be achieved by a simple serial communications)

串口通讯的一个类，已经在用，分享给大家。(serial port communication file.)

modbusRTU Communications with RS485

一个功能比较全面的串口调试工具。你值得拥有。(A more comprehensive functional serial debugging tools. You deserve. )