Purchase development board to provide the following information：
01、MediaTek_ SDK development kit
02. Base plate schematic diagram and PCB
03. MTK user manual
04. Core board package library
05. Debugging tools
06. Development board instructions
Recommended development options：
User developed firmware
01. MediaTek_ SDK development kit
02. Including MediaTek_ Uboot source code
03. Including MediaTek_ Kernel source code
04. Including the use of uboot built in the core board
Core board built in function（Note: the function developed by our company does not provide the source code, only for mass production users）
01,Cpect / 4G dial-up router
02,DTU of router 02 and 4G supports two-way transmission of UART TTL data directly to the server, and connects with TCP / UDP / mqtt server
03, 4G router DTU support multi socket
04,The DTU of 4G router supports custom registration package and heartbeat package
05, Wan + LAN or 5LAN can be selected
06. WiFi supports AP or sta mode
07. Network port > WiFi mode; WiFi > network port mode
08. The audio system supports Apple IOS air play push playback
09. When connecting to USB flash disk, the mobile phone can read and write USB flash disk through FTP protocol
10. The picture is transferred to the USB mjpg format camera. The computer and mobile phone can view the real-time video stream through VLC media player