modbus串口通信，利用vc6.0控件自己的项目中用到的代码，很好用。里面有两个程序，一个上位机，一个模仿下位的极的程序，可以互相通信。-modbus serial communication, the use the code the vc6.0 controls used in the project, to very good use. There are two programs, a host computer, an imitation of a bit extreme progr

修改FTDI公司的USB转串口的名字，可实现多台电脑同一串口名,使用VC6.0编译-Operating FTDI USB to UART chip，we can change the name of the serial port and keep the same serial name at windows/linux/Macos/Unix etc.

云台镜头控制系统，可以实现多组云台镜头的控制，可以自由修改串口的波特率，校验率等，通用性较强，在VC6.0环境中可以正运行常，-PTZ camera control, PTZ control, free to modify the serial port baud rate, parity rate, more versatility in VC6.0 environment are run often.