本程序利用MFC技术，C++语言编写完成。其中核心技术包括有：利用MSComm控件完成单片机与上位机的通信，利用ODBC数据库接口技术把采集的温度数据存储到上位机。-This procedure using MFC technology, C++ language prepared. The core technologies include: the use of MSComm control the completion of MCU and host computer communicat

vb 串口通信原来实现电脑与下位机 plc 单片机的通信-vb suo Dunbiqianyun Chi mistress

VB与串行通信编程实例：单片机采用了51单片机，多机通信中采用了利SM2来区分是数据还是地址，效果还可以。其中RS485部分采用了隔离转换电路，采用高速光耦6N137-VB and serial communication programming examples: single-chip microcontroller with a 51, multi-machine communication using Lee SM2 to distinguish the data or address,