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LinkIt Smart 7688 Duo Development Platform

  • $29.00AUD
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  • LinkIt Smart 7688 Duo Development Platform

    • Co-design by Seeed and MTK
    • Media Tek MT7688
    • Generous memory and storage
    • Python, Node.js and C as option
    • MediaTek Labs site support

    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 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 section and register 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)    


    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


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