用一根网络连接线，连接在DM642的J11和HUB或交换机之间。另需一台主机连接在HUB或交换机之间，和音视频开发平台构成一个局域网。在主机上刷新IE， 会在屏幕上看到通过摄像头拍摄的，用JPEG压缩后通过以太网传送的图像。-With a network cable to connect the DM642' s J11 and between HUB or switch. Another required a host connection between the HUB or swit

STM32平台上基于ucos-II移植了RFID和WiFi的驱动程序，可以读取M1射频卡，并通过WiFi模块（ESP-01）发送到局域网内其他主机(STM32 platform, based on the ucos-II transplant RFID and WiFi driver, you can read the M1 radio frequency card, and through the WiFi module (ESP-01) sent to other hosts within

NRF2401L驱动，可实现小型局域网组网功能，采用主机轮询方式向设备终端发起数据请求(This project is NRF2401L driver base on 80C51 ,it can use as small PNA(personal area network),The host send the data require to the end-device,end-device request sample data back!)