LinkIt Connect 7681 - Wi-Fi HDK for IoT

Description of product


The LinkIt™ Connect 7681 development board provides you with easy access to the five GPIO pins and one UART port — each with an LED — of the MediaTek MT7681 chip, to quickly connect peripheral controllers and electronic circuits. The MT7681 — compact Wi-Fi SoC with embedded TCP/IP stack — is provided on the LinkIt™ Connect 7681 module, co-designed with AcSiP. This module, which is only 15 x 18mm, is also available separately for direct integration into your product’s PCB. (Also see LinkIt™ Connect 7681 module).

The LinkIt™ Connect 7681 development board is part of the LinkIt™ Connect 7681 development platform from MediaTek Labs. This development platform delivers you the tools and documentation to prototype your IoT device and create its final design.


  • Access to the five GPIO pins and one UART port provided by MT7681, with attached LEDs

  • Integrated Wi-Fi antenna

  • Power over USB (Micro USB port).

  • Open source hardware reference design, including schematics, layouts and pin details.


  • Chipset Core: MT7681 ANDES N9

  • Clock Speed: 80MHz

  • Flash: 1MB, RAM: 64KB

  • Power: on-board 1A 3.3V voltage regulator (can be powered from USB connector)

  • Connectors: UART/GPIO/SPI pins are available on connectors (100mil/2.54mm pitch), micro USB connector.

  • GPIO Voltage: 3.3V

  • PWM Output pin Count: 5

  • PWM levels: 0~20

  • UART Voltage: 3.3V

  • Wi-Fi Spec: 802.11 b/g/n for Station mode; 802.11 b/g for AP mode

  • Dimensions: 50 x 31 mm

  • Other: Onboard reset push-button

Technical details

Dimensions75mm x75mm x30mm
WeightG.W 44g

Part List

LinkIt Connect 7681 - Wi-Fi HDK for IoT1