SKU
102110017
Rating:
93% of 100
$17.90
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+

LinkIt Smart 7688 Duo, openwtr, 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

PRODUCT DETAILS

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 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.

Features

  • 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)    


18px;">Specifications

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
SDXC
           


Schematic Diagram

Technical details

Dimensions 56mm x26mm x18mm
Weight G.W 14g
Battery Exclude

Part List

LinkIt Smart 7688 Duo 1

ECCN/HTS

HSCODE 8543709990
USHSCODE 8517700000
UPC 841454120452
FCC 1
CE 1

LEARN AND DOCUMENTS

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LinkItTM Smart 7688 Duo(a compact controller board) is an open development board based on MT7688(datasheet) and ATmega32u4. The board is compatible with Arduino Yun sketches and is based on the OpenWrt Linux distribution.

REVIEWS

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  1. Rating
    100%
    Awesone board design and Shipping
    This was my first order from seeed studio and it went very smoothly.
    The board is very good and powerful.
    Compact and nice design.

    i have created small getting started tutorials for beginners

    https://youtu.be/UJoS4QFaSvE
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    Nice
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  8. Rating
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    Very bad packaging. Pins are bent.
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  9. Rating
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    The device arrived in perfect state. Thanks
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  10. Rating
    100%
     
    This board is a little bigger than a simple Arduino Nano, but with the difference that it is much powerful. And... has an "Arduino" inside, with its ATmega32u4, which is capable to communicate with the MediaTek processor.
    Also, the Arduino ecosystem brings the Linkit to a whole world of possibilites.
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  16. Rating
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    Great for IoT projects using Arduino and Embedded Linux - OpenWRT
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  20. Rating
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    This is a great bit of kit, ideal for IoT solutions, and with the ATMEGA included, also great for real-time tasks like busy CAN busses.
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  27. Rating
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    Very reliable system. Has been running 24/7 as a server for almost a year
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  29. Rating
    20%
     
    wi-fi not proper My board doesn't connect to wi-fi in the station mode. i am using it for surveillance using the logitech c310. till date i could connect it only once. if any of u have a solution for this problem please mail me at brhardhik@gmail.com
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  30. Rating
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    Is ok Is ok.
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  31. Rating
    80%
     
    neat little thing
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  32. Rating
    100%
     
    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!
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