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LinkIt Smart 7688,supports OpenWRT,IoT Application for Smart Home,32MB flash and 128MB DDR2 RAM

SKU
102110018

LinkIt Smart 7688 is one of the most highly integrated and compact hardware development boards available for IoT prototyping. The MPU is powered by MediaTek’s MT7688AN SOC that supports the OpenWrt Linux distribution.

$22.00
In stock
  • 10+: $19.00
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+

PRODUCT DETAILS

Note

We have an upgraded version, please refer to MT7628N-A WIFI Module.

LinkIt Smart 7688 is one of the most highly integrated and compact hardware development boards available for IoT prototyping. The MPU is powered by MediaTek’s MT7688AN SOC that supports the OpenWrt Linux distribution.

Features

  • High-integration MPU: Support 580 MHz MIPS CPU and 32MB flash and 128MB DDR2 RAM
  • Support OpenWrt: Run on Linux platform, freely choose C, C++, Python, PHP and other programming languages
  • 1T1R Wi-Fi 802.11 b/g/n: Integrate WiFi wireless transmission function of (Single Input Single Output)1T1R 802.11b /g/n
  • Rich peripheral interfaces available: Pin-out for GPIO, I2C, I2S, SPI, UART, PWM and Ethernet Port
  • USB Host Mode: USB host capability that enables it to connect to various USB devices

Description

LinkIt Smart 7688 is an open development board based on OpenWrt Linux distribution and MT7688. The board is designed especially to enable the prototyping of Rich IoT Applications for Smart Homes. The board offers you memory and packet storage to enable robust video processing. The MPU supports the OpenWrt Linux distribution, it processes an application’s intensive logic tasks and provides Wi-Fi connectivity. It supports Python, Node.js and C programming languages. The MCU handles real-time peripheral control as well as offers the ability to run Arduino sketches. It comes with 802.11n WiFi for setting up Web applications and has rich GPIO outputs, which are perfect for embedding into all kinds of smart home projects.

LinkIt Smart 7688 is a co-design product by Seeed Studio and MediaTek. It brings together the parties' knowledge of open hardware and industry leading reference designs for IoT devices to create this powerful development board.

LinkIt Smart 7688 provides USB host capability that enables it to connect to various USB devices such as webcams, USB drives, keyboards, joysticks and more. The connector is a USB micro-AB type.

LinkIt Smart 7688 are two types of antenna supported one is the default antenna built-in Wi-Fi chip antenna, and the other is I-PEX connector for external antenna(To enable the I-PEX connector, you’ll need to remove the resistor R233 located on the top left corner of the I-PEX connector).

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 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.

Application

  • Wearables and Internet of Things (IoT) devices
  • Wi-Fi security web cam
  • Real-time camera monitor
  • Smart home

Recommended conditions of power input source for 7688

  • Overshoot voltage of power input should not over 5.5
  • The voltage wave should be within ±100mV of rated voltage

Note

We also have another LinkIt cost-effective WiFi solution LinkIt Connect 7681 and LinkIt Connect 7681 Module.

Specifications

MPU

Chipset

MT7688AN

Core

MIPS24KEc

Clock speed

580MHz

Working voltage

3.3V

PCB Size

Dimensions

55.7 x 26 mm

Memory

Flash

32MB

RAM

128MB DDR2

USB Power

5V (USB micro-B)

VCC

3.3V (Pin Breakout)

GPIO

Pin Count

22 (MT7688AN)

PWM

Pin Count

4 (MT7688AN)

Max. Resolution

7 bits (customizable)

Maximum Frequency @Resolution

100kHz@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)

Maximum Frequency @Resolution

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 Interrupts

Pin Count

22 (MT7688AN)

SPI

Set count

1 (MT7688AN)

Pin numbers

P22, P23, P24 (Shared with on-board flash), P25

Max. Speed

25 MHz

SPI Slave

Set count

1 (MT7688AN)

Pin numbers

P28, P29, P30, P31

Max. Speed

25 MHz

I2S

Set count

1 (MT7688AN)

Pin numbers

P10, P11, P12, P13

I2C

Set count

1

Pin numbers

P20, P21

Speed

120K/400K

UART Lite

Set count

3 (MT7688AN)

Pin numbers

P8, P9, P16, P17, P18, P19

Max. Speed

0.5Mbps

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

Size

Dimensions

56mm x26mm x18mm

Weight

G.W 13g

Battery

Exclude

Hardware Overview

Part List

MT7628N-A WIFI module

×1

FAQ

The development board seems to have stopped working, what do I do?

If your LinkIt Smart 7688 development board becomes unresponsive:

(1) Attempt to reboot the board using the MPU reset button.

(2) Attempt to reboot the board using the boot loader.

ECCN/HTS

HSCODE 8543909000
USHSCODE 8543708800
EUHSCODE 8543709099
COO CHINA
EU DoC 1
RoHS 1
TELEC 1
UK DoC 1

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