标准工业RS232端口技术开发包,有一定的使用价值,方便开发类似PLC PDA GPS 等项目-RS232 ports standard industrial technology development kits, a certain value, and facilitate the development of similar PLC PDA GPS project

用于串行口通讯的读卡器的读卡程序，硬件使用台华的K4232，EK卡片的卡号转换。-Used for serial port communication reader reader program, hardware, Taiwan and China to use the K4232, EK card card number conversion.