视频网络通话UDP 很方便在内网使用,自动网址广播-Video Network calls UDP is easy to use, including network

串口RFID、扫描枪、键盘支持，控制3个COM口(海宏软件)，模拟键盘、广播消息、串口通信-Serial RFID, scanner, keyboard support, control three COM ports (Haihong software), analog keyboards, radio message, serial communication