Arduino Breakout for LinkIt Smart 7688 Duo is an Arduino Yn compatible（share the same MCU model）and a Grove port feature expansion board for LinkItTM Smart 7688 Duo development platform. This breakout board allows you to use different features from Arduino Yn and LinkIt Smart 7688 Duo which will help you build rich applications based on various、robust and compiled Arduino sketches. This breakout board will save a lot of work and makes prototyping easier through simplified wiring. So it helps a beginner get a quick start. It supports serial buses like I2C、UART and provides access to reserved original pins of LinkItTM Smart 7688 Duo. It also comes with USB and Ethernet ports.
In addition、it also integrates several frequently used peripheral ports such as USB port、Ethernet port. LinkIt Smart 7688 Duo（a compact controller board）is an open development board、based on the OpenWrt Linux distribution、MT7688 and ATmega32u4. The board is designed especially to enable the prototyping of Rich Application IoT devices for smart house.
Features
Arduino Shield Compatible、
1×Ethernet to connect to internet
1×USB 2.0 for more peripherals
Grove interfaces：I2C×2、Analog×3、Digital× 6、UART×1
4-pin debug port×1、ICSP×1
Specification
Input voltage：5.0V（With USB Power port）
Operating voltage：3.3V
Debug pins
Ethernet pins and USB type-A host pins conect with MT7688
