LinkIt Smart 7688 Duo
SKU 102110017
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 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
sectionand 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)
Specifications
Category
Feature
Specification
Chipset
MT7688AN
Core
MIPS24KEc
Clock speed
580MHz
Working voltage
3.3V
Chipset
ATmega32U4
Core
Atmel AVR
Clock speed
8MHz
Working voltage
3.3V
Dimensions
60.8 x 26 mm
Flash
32MB
RAM
128MB DDR2
USB Power
5V (USB micro-B)
VCC
3.3V (Pin Breakout)
Pin Count
3
(MT7688AN)
24 (ATmega32U4)
Voltage
3.3v
Pin Count
8 (ATmega32U4)
Voltage
3.3v
MPU
MCU
PCB Size
Memory
Power Source
GPIO
PWM
Max. Resolution
16 bits (customizable)
31.25kHz@8-bit, Timer 0 (4
sets)
Maximum
Frequency@Resolution
2MHz@2‐bit,122Hz@16‐bit,
Timer 1 & 3 (4 sets)
187.5kHz@8-bit,
46.875kHz@10-bit, Timer 4
(6 sets)
Pin Count
12 (ATmega32U4)
Voltage
3.3v
Pin Count
8 (ATmega32U4)
Set count
1 (ATmega32U4)
Pin numbers
S0, S1, S2, S3
Max. Speed
4 MHz
Set count
1
Pin numbers
D2, D3
Speed
400K
ADC
External Interrupts
SPI/SPIS
I2C
1 (ATmega32U4)
Set count
1 (MT7688AN)
UART Lite
P8, P9 (MT7688AN)
Pin numbers
D0, D1 (ATmega32U4)
0.5 Mbps (MT7688AN)
Max. Speed
USB Host
Communication
User Storage
0.5
Mbps
(ATmega32U4)
Set count
1 (MT7688AN)
Pin numbers
P6, P7
Connector type
Micro-AB
Wi-Fi
1T1R
802.11
(2.4G)
Ethernet
1-port 10/100 FE PHY
Pin numbers
P2, P3, P4, P5
SD Card
Micro
SDXC
b/g/n
SD
Schematic Diagram
Technical Details
Dimensions
56mm x 26mm x 18mm
Weight
G.W 14g
Battery
Exclude
Part List
LinkIt Smart 7688 Duo
1
ECCN/HTS
ECCN
5A002.a.1
HSCODE
8543909000
Certification
Certification
FCC,CE
https://www.seeedstudio.com/LinkIt‐Smart‐7688‐Duo‐p‐2574.html/12‐10‐18
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