MediaTek Labs

MediaTek LinkIt™ Connect 7681 development platform

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MediaTek MT7681 is a compact Wi-Fi System-on-Chip (SoC) for IoT devices with embedded TCP/IP stack.

About this Solution:

What is MediaTek LinkIt™ Connect 7681 development platform?

There is an increasing trend towards connecting every imaginable electrical or electronic device found in the home. For many of these applications developers simply want to add the ability to remotely control a device — turn on a table lamp, adjust the temperature setting of an air-conditioner or unlock a door. This is where the MediaTek MT7681 comes in.

MediaTek MT7681

MediaTek MT7681 is a compact Wi-Fi System-on-Chip (SoC) for IoT devices with embedded TCP/IP stack. By adding the MT7681 to an IoT device it can connect to other smart devices or to cloud applications and services. Connectivity on the MT7681 is achieved using Wi-Fi in either Wi-Fi station or access point (AP) mode.

In Wi-Fi station mode, MT7681 connects to a wireless AP and can then communicate with web services or cloud servers. A typical use of this option would be to enable a user to control the heating in their home from a home automation website.

To simplify the connection of an MT7681 chip to a wireless AP in Wi-Fi station mode, the MediaTek Smart Connection APIs are provided. These APIs enable a smart device app to remotely provision a MT7681 chip with AP details (SSID, authentication mode and password).

In AP mode, an MT7681 chip acts as an AP, enabling other wireless devices to connect to it directly. Using this mode, for example, the developer of a smart light bulb could offer users a smartphone application that enables bulbs to be controlled from within the home.

To control the device an MT7681 is incorporated into, the chip provides five GPIO pins and one UART port. In addition PWM is supported in software, for applications such as LED dimming.

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MediaTek LinkIt Connect 7681 development platform

To enable developers and makers to take advantage of the features of the MT7681, MediaTek Labs offers the MediaTek LinkIt Connect 7681 development platform, consisting of an SDK, HDK and related documentation.

For software development MediaTek LinkIt Connect 7681 SDK is provided for Microsoft Windows and Ubuntu Linux. Based on the Andes Development Kit, the SDK enables developers to create firmware to control an IoT device in response to instructions received wirelessly.

For IoT device prototyping, the LinkIt Connect 7681 development board is provided. The development board consists of a LinkIt Connect 7681 module, micro-USB port and pins for each of the I/O interfaces of the MT7681 chip. This enables you to quickly connect external hardware and peripherals to create device prototypes. The LinkIt Connect 7681 module, which measures just 15x18mm, is designed to easily mount on a PCB as part of production versions of an IoT device.

Key Features of MT7681

  • Wi-Fi station and access point (AP) modes
  • 802.11 b/g/n (in station mode) and 802.11 b/g (in AP mode)
  • Smart connection APIs to easily create Android or iOS apps to provision a device with wireless AP settings
  • TCP/IP stack
  • Firmware upgrade over UART, APIs for FOTA implementation
  • Software PWM emulation for LED dimming
  • Firmware upgrade over UART, APIs for FOTA implementation

Software Architecture:

The software architecture of the MT7681 provides for access to its hardware features through four APIs — Wi-Fi API, Security API, Interface API and Control API.

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Know more about LinkIt™ Connect 7681:

- SDK Introduction

- HDK Introduction

- API References

- Developers Guide

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This Solution is most applicable for the following stages and categories:

  • Brainstorming an idea
  • Proof of concept
  • Working prototype
  • Wearables
  • Sports Devices
  • Toys & Games
  • Audio & Video Devices
  • Smart Home Devices
  • Tech Accessories
  • Health Devices

Brought to you by MediaTek

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About MediaTek Labs:MediaTek Labs provides you with all the help you need to develop innovative hardware and software around Wearables and IoT devices based on MediaTek products. Whether you are ...
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Solution Tech Tags

  • WiFi
  • Windows OS
  • Linux OS