LinkIt Smart 7688 Duo
  • LinkIt Smart 7688 Duo
  • LinkIt Smart 7688 Duo
  • LinkIt Smart 7688 Duo
  • LinkIt Smart 7688 Duo

LinkIt Smart 7688 Duo

SKU 102110017
  • Co-design by Seeed and MTK
  • Media Tek MT7688 and ATmega 32U4
  • Compatible with Arduino Yún sketches
  • Generous memory and storage
  • Python, Node.js and C as option
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    LinkIt Smart 7688

    The Linklt Smart 7688 development platform offers two developments boards:

    What is LinkIt Smart 7688 Duo

    LinkIt Smart 7688 Duo is an open development board compatible with Arduino Yún sketches, based on the OpenWrt Linux distribution, MT7688 and ATmega32u4. The board is designed especially to enable the prototyping of Rich IoT Application for smart house or office. Since it is compatible with Arduino, this allows you to use different features from Arduino Yún and LinkIt Smart 7688 Duo, which will help you build rich applications based on various, robust and compiled Arduino Yún sketches. 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 duo 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 duo is fully supported on the MediaTek Labs site: check out the LinkIt sectionandregister here to download the SDK, participate in the Forums, and more.


    • 580 MHz MIPS CPU    

    • Single input single output(1T1R) Wi-Fi 802.11 b/g/n (2.4G)    

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

    • 32MB Flash and 128MB DDR2 RAM    

    • USB host    

    • Micro SD slot    

    • Support for Arduino (ATmega32U4)    

    what is LinkIt ONE


    Category            Feature            Specification            
    MPU            Chipset            MT7688AN            
    Core            MIPS24KEc            
    Clock speed            580MHz            
    Working voltage            3.3V            
    MCU            Chipset            ATmega32U4            
    Core            Atmel AVR            
    Clock speed            8MHz            
    Working voltage            3.3V            
    PCB Size            Dimensions            60.8 x 26 mm            
    Memory            Flash            32MB            
    RAM            128MB DDR2            
    Power Source            USB Power            5V (USB micro-B)            
    VCC            3.3V (Pin Breakout)            
    GPIO            Pin Count            3 (MT7688AN)
    24 (ATmega32U4)
    Voltage            3.3v            
    PWM            Pin Count            8 (ATmega32U4)            
    Voltage            3.3v            
    Max. Resolution            16 bits (customizable)            
    Maximum Frequency@Resolution            31.25kHz@8-bit, Timer 0 (4 sets)            
    2MHz@2-bit,122Hz@16-bit, Timer 1 & 3 (4 sets)            
    187.5kHz@8-bit, 46.875kHz@10-bit, Timer 4 (6 sets)            
    ADC            Pin Count            12 (ATmega32U4)            
    Voltage            3.3v            
    External Interrupts            Pin Count            8 (ATmega32U4)            
    SPI/SPIS            Set count            1 (ATmega32U4)            
    Pin numbers            S0, S1, S2, S3            
    Max. Speed            4 MHz            
    I2C            Set count            1            
    Pin numbers            D2, D3            
    Speed            400K            
    UART Lite            Set count            1 (ATmega32U4)            
    1 (MT7688AN)            
    Pin numbers            P8, P9 (MT7688AN)            
    D0, D1 (ATmega32U4)            
    Max. Speed            0.5 Mbps (MT7688AN)            
    0.5 Mbps (ATmega32U4)            
    USB Host            Set count            1 (MT7688AN)            
    Pin numbers            P6, P7            
    Connector type            Micro-AB            
    Communication            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 SD

    Schematic Diagram

    Schematic diagram

    Download Link



    Facebook Likes Reminder

    It will remind you when you have a new 'like' on your facebook page. The device will vibrate,the lights will twinkle, while the screen will show the real-time facebook likes. 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.

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    Is ok
    Is ok.
    Jan 16,2017 by
    Was this review helpful ?
    neat little thing
    Nov 10,2016 by
    Was this review helpful ?
    Awesome product!
    I was supprised when I recieved my Linkit Smart 7688 Duo! It has almost infinite posibilities, because you can connect it to WiFi and its running OpenWrt aka Linux and it has plenty of IO pins you can use for your sensors and hardware!
    Nov 07,2016 by
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    Questions and Answers
    will the kit work for 24/7 in 50 degree Celsius. because i want to deploy in real time application.
    on May 10,2017
    Replyupvote ()

    Hello, I am sorry but we hadn't made such testing for this product.


    on May 10,2017 18:33 PM
    Replyupvote ()
    has anyone gotten nodejs 4.3 working?
    on Dec 31,2016
    Replyupvote ()
    struggling with LTS at the moment but cross-compiling is a nightmare
    on Jan 21,2017 09:46 AM
    Replyupvote ()
    is there a schematic
    on Nov 26,2016
    Replyupvote ()

    Please find the schematics from the following link :

    on Nov 28,2016 12:45 PM
    Replyupvote ()
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