LinkIt Smart 7688

SKU 102110018
  • Co-design by Seeed and MTK
  • Media Tek MT7688
  • Generous memory and storage
  • Python, Node.js and C as option
  • MediaTek Labs site surpport
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LinkIt Smart 7688

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.

What is LinkIt Smart 7688

The LinkIt Smart 7688 is an open development board, based on the 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.


  •     • 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.

what is LinkIt ONE


    • MPUChipsetMT7688AN
Clock speed580MHz
Working voltage3.3V
    • PCB SizeDimensions55.7 x 26 mm
    • MemoryFlash32MB
    • Power SourceUSB Power5V (USB micro-B)
VCC3.3V (Pin Breakout)
    • GPIOPin Count22 (MT7688AN)
    • PWMPin Count4 (MT7688AN)
Max. Resolution7 bits (customizable)
Maximum Frequency@Resolution100kHz@1-bit 50kHz@2-bit 25kHz@3-bit 12.5kHz@4-bit 6.25kHz@5-bit 3.125kHz@6-bit 1.5625kHz@7-bit (Standard mode)
40MHz@1-bit 20MHz@2-bit 10MHz@3-bit 5MHz@4-bit 2.5MHz@5-bit 1.25Mhz@6-bit 625kHz@7-bit (Fast mode)
    • External InterruptsPin Count22 (MT7688AN)
    • SPISet count1 (MT7688AN)
Pin numbersP22, P23,P24 (Shared with on-board flash), P25
Max. Speed25 MHz
    • SPI SlaveSet count1 (MT7688AN)
Pin numbersP28, P29, P30, P31
Max. Speed25 MHz
    • I2SSet count1 (MT7688AN)
Pin numbersP10, P11, P12, P13
    • I2CSet count1
Pin numbersP20, P21
    • UART LiteSet count3 (MT7688AN)
Pin numbersP8, P9, P16, P17, P18, P19
Max. Speed0.5Mbps
    • USB HostSet count1 (MT7688AN)
Pin numbersP6, P7
    • CommunicationWi-Fi1T1R 802.11 b/g/n (2.4G)
Ethernet1-port 10/100 FE PHY
Pin numbersP2, P3, P4, P5
    • User StorageSD CardMicro SD SDXC


Schematic diagram

Download Link



Smart WiFi Audio

It is a WiFi Audio which allows your mobile phone to connect to its WiFi and play the music in your phone. If you connect the Linklt Smart 7688 to your Router, the Audio will show the IP on the Grove RGB Backlight LCD, and also the song title.

Learn more at our Recipe.


Please visit our Wiki page for more info about this product. It will be highly appreciated if you can help improve the documents, add demo codes or tutorials. For technical support, please post your questions to our Forum.


LinkIt ONELinkIt Smart 7688 DuoGrove Starter Kit for             LinkIt ONEBreakout for LinkIt Smart 7688 v2.0
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