用VB编写的一个上位机虚拟示波器。可以显示波形，通过串口和下位机通讯-A host computer with VB virtual oscilloscope. Can display the waveform through the serial port and lower machine communication

根据计算机信息生成序列号,很不错的VB源码，适合VB爱好者学习研究。-Computer information to generate a serial number, a very good VB source code for VB lovers learn.