好东东，用C写的，USB接口程序，很好用

编程:串行口调试程序-Programming : serial port debugger

Bluetooth

串口通信控制XX变频器,VB下编的界面，已调试通过，可以运行，-VB_rs232_transducer

多线程串口通信的例子,可以实现同时多串口的通信-multithread serial communication example, can achieve more while the Serial Communications

max232部分程序，pdf文件，串口调试助手.-MAX232 some of the procedures, pdf file, serial debugging aides.

串口通信的用户协议的编制与数据处理方法 串口数据包处理方法编程实例-Serial Communication user agreement and the establishment of data processing methods serial data packet processing methods Programming Example

最棒的串口调试工具， 不用初始化任何波特率，进出的所有包都可以抓-best serial debugging tools, not initialize any baud rate, and out of all the packets can grasp

利用西门子的GSM芯片（TC35）的手机模块实现短信的读写，该手机模块可以加入SIM卡，然后就跟手机一样使用了，程序可以通过串口进行控制-The programme use GSM CMOS chip(TC35) module to read and write short message, you can insert SIM card into this module, then it can work as ordinary Mobile phone,the programme can control the module through com port.

Visual Basic串口通讯调试方法。一个非常简单的方法.-Visual Basic serial communications debugging method. A very simple method.

VC++中实现多串口通信编程的类及样例程序,来源于-VC multi-serial communication programming category and sample program, and from the lt; VC_TurboC serial communication programming practice gt;