在VB下设计开发实时的数据采集曲线.rar-in VB under design and development of real-time data acquisition curve. Rar

电话录音,通过控件和VB代码可以弹屏和实时录来去电,-Telephone recording

用单片机实现简单的测电压功能，用七段式数码管显示电压，也可以用上位机实现实时电压-With MCU simple voltage measurement function, with a seven-segment-type digital display voltage, you can also use the PC for real-time voltage