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

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.

• 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

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.

 

Application

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

 

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

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