这个是VB写PC与单片机通信程序要用的控件（Mscomm32）-This is a PC to write VB program to use with single-chip control communications (Mscomm32)

vb电话来电显示，在电脑上，51单片机同时使用串口-vb telephone Caller ID on the computer

采用51单片机实现对下位机模拟数据的串行采集并由上位机界面实现测量采集的控制和实时数据的曲线描画，采用VB实现-MCU with 51-bit machine the next serial analog data acquisition PC interface implemented by the measurement control and real-time data acquisition curve drawing, using VB