OpenWRT is a highly modular, highly automated embedded Linux system, has a strong network components and scalability, is often used industrial equipment, telephone, small robots, smart home, routers and VOIP equipment. It also provides more than 100 pre-compiled software, and the number is still increasing, but more OpenWrt SDK simplifies software development processes. Openwrt firmware module has a good brush, and installed UVC camera driver, Ser2net serial port forwarding software, mjpg-streamer video analysis software, and is already set to random start. Leads to TTL interface can 5V 3.3V Serial Communication