LinkIt Smart 7688

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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 such as 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 andregister here to download the SDK, participate in the Forums, and more.
Features
  • 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.
CategoryFeatureSpecification
MPUChipsetMT7688AN
CoreMIPS24KEc
Clock speed580MHz
Working voltage3.3V
PCB SizeDimensions55.7 x 26 mm
MemoryFlash32MB
RAM128MB DDR2
Power SourceUSB Power5V (USB micro-B)
VCC3.3V (Pin Breakout)
GPIOPin Count22 (MT7688AN)
Voltage3.3v
PWMPin Count4 (MT7688AN)
Voltage3.3v
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
Speed120K/400K
UART LiteSet count3 (MT7688AN)
Pin numbersP8, P9, P16, P17, P18, P19
Max. Speed0.5Mbps
USB HostSet count1 (MT7688AN)
Pin numbersP6, P7
SpeedMicro-AB
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

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LinkIt Smart 7688

LinkIt Smart 7688