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.

RFID编程 Delphi控件源码 操作系统开发 -RFID Programming Delphi VCL OS development