使用spcomm控件进行串口通信的程序，包括数据的发送与接收，同时采用定时发送的方式，delphi语言编写。-spcomm used for serial communication control procedures, including data transmission and reception. Timing also adopted this approach, delphi language.

串口通信 基于MSComm控件的串口调试程序及源代码在Visual C++环境下-Serial communication serial port controls based on MSComm debugger and source code in Visual C++ Environment

一个串口通信优秀控件Modbus ActiveX Control V2.02-A serial communication excellent control Modbus ActiveX Control V2.02

串口通信，单路，基于mscomm控件，已验证-Serial communication, single channel, based on the MSComm control, has been verified