Delphi编写的RS232串口程序，可以作单机通讯和多机通讯。-Delphi procedures for the preparation of the RS232 serial port, can be used as stand-alone communications and multi-machine communication.

Comport Delphi 7 (RS232)

rs232 傳送資料範例，使用 delphi 程式碼編譯-rs232 send data sample code, use delphi code

这是带源码安装版，有源码，有注册号，完美支持 Delphi 10.2 Tokyo，nrComm Lib 是在由Deepsoftware开发类别 Miscellaneous Shareware 软件。(nrComm Lib provides some tools for performing the serial communications tasks in Delphi/CBuilder development. It has ready solutions for many co