以vc++和vb为开发工具,应用于视频设备转台的控制.通过计算机串口或者并口把指令发送到解码器,再由解码器控制相关的继电器,从而控制转台各个方向的运动-To vc++ And vb for the development of tools, used video equipment turntable control. Through the computer serial port or parallel port to send commands to the decoder, then t