LinkIt Smart 7688 SKU 102110018

  • Mã sản phẩm: LinkIt Smart 7688 SKU 102110018
  • Nhà sản xuất: SeeedStudio
  • Website hỗ trợ:

The Linklt Smart 7688 development platform offers two developments boards:

  • Linklt Smart 7688: MPU only. Powered by Media Tek MT7688.

  • Linklt Smart 7688 Duo: MPU and MCU. Powered by Media Tek MT7688 and ATmega 32U4.


LinkIt Smart 7688 is an open development board which is based on OpenWrt Linux distribution and MT7688. The board is designed especially to enable the prototyping of Rich IoT Application for Smart Home. The board offers you the memory and packet storage to enable robust video processing. The platform also offers options to create device applications in Python, Node.js and C programming language.


LinkIt Smart 7688 is a co-design product by Seeed Studio and MediaTek. It brings together the parties' knowledge in open hardware and industry leading reference designs for IoT devices to create this powerful development board.


LinkIt Smart 7688 is fully supported on the MediaTek Labs site: check out the LinkIt section and register here to download the SDK, participate in the Forums, and more.


Note (important)


In order to protect the product from improper operation, please pay attention to below notes.

  • Choose more reliable power adapter with stable output.

  • Recommended conditions of power input source for 7688:

     1. Overshoot voltage of power input should not over 5.5.

     2. Voltage wave should be within ±100mV of rated voltage.



  • Single input single output(1T1R) Wi-Fi 802.11 b/g/n.

  • Pin-out for GPIO, I2C, I2S, SPI, UART, PWM and Ethernet Port.

  • 580 MHz MIPS CPU.

  • 32MB flash and 128MB DDR2 RAM.

  • USB host.

  • Micro SD slot.



Technical Details

Dimensions 56mm x 26mm x 18mm
Weight G.W 13g    
Battery Exclude
Chipset MT7688AN
Core MIPS24KEc
Clock speed 580MHz
Working voltage 3.3V
PCB Size
Dimensions 55.7 x 26 mm
Flash 32MB
Power Source
USB Power 5V (USB micro-B)
VCC 3.3V (Pin Breakout)
Pin Count 22 (MT7688AN)
Voltage 3.3V
Pin Count 4 (MT7688AN)
Voltage 3.3V
Max. Resolution 7 bits (customizable)
Maximum Frequency@Resolution 100kHz@1-bit50kHz@2-bit / 25kHz@3-bit 12.5kHz@4-bit / 6.25kHz@5-bit3.125kHz@6-bit / 1.5625kHz@7-bit (Standard mode)
Maximum Frequency@Resolution 40MHz@1-bit20MHz@2-bit / 10MHz@3-bit 5MHz@4-bit / 2.5MHz@5-bit1.25Mhz@6-bit / 625kHz@7-bit (Fast mode)
External Interrupts
Pin Count 22 (MT7688AN)
Set count 1 (MT7688AN)
Pin numbers P22, P23,P24 (Shared with on-board flash), P25
Max. Speed 25 MHz
SPI Slave
Set count 1 (MT7688AN)
Pin numbers P28, P29, P30, P31
Max. Speed 25 MHz
Set count 1 (MT7688AN)
Pin numbers P10, P11, P12, P13
Set count 1
Pin numbers P20, P21
Speed 120K/400K
Set count 3 (MT7688AN)
Pin numbers P8, P9, P16, P17, P18, P19
Max. Speed 0.5Mbps
USB Host
Set count 1 (MT7688AN)
Pin numbers P6, P7
Speed Micro-AB
Wi-Fi 1T1R 802.11 b/g/n (2.4G)
Ethernet 1-port 10/100 FE PHY
Pin numbers P2, P3, P4, P5
User Storage
SD Card Micro SDSDXC

Part List

LinkIt Smart 7688 1


ECCN 5A002.a.1
HSCODE 8543909000


Certification FCC,CE



  • [Wiki] LinkIt Smart 7688

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  • Blynk App with Linkit7688 Duo and Webcam

    How to make a functional application with Blynk and the Linkit Smart 7688 Duo board, with utility for home automation.

  • myva-Home (Voice controlled home automation)

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