单片机通过串口与电脑通信，通过VB2005达到人机界面可视化操作，直观形象！

单片机将采样来的信息通过串口传到VB中，从VB中显示转速！-Single-chip computer through the serial communications, the adoption of VB2005 visualization to achieve human-machine interface operation, intuitive image! Single-chip will sample to spread the information through the serial port in VB, VB to display from the speed!