OpenThread

OpenThread released by Nest is an open-source implementation of Thread®. Nest has released OpenThread to make the networking technology used in Nest products more broadly available to developers, in order to accelerate the development of products for the connected home.

With a narrow platform abstraction layer and a small memory footprint, OpenThread is highly portable. It supports both system-on-chip (SoC) and network co-processor (NCP) designs.

Thread Certified component

OpenThread implements all features defined in the Thread 1.1.1 Specification. This specification defines an IPv6-based reliable, secure, and low-power wireless device-to-device communication protocol for home applications.

Features

OpenThread implements all Thread networking layers (IPv6, 6LoWPAN, IEEE 802.15.4 with MAC security, Mesh Link Establishment, Mesh Routing) and device roles, as well as Border Router support.

Application services
  • IPv6 configuration and raw data interface
  • UDP sockets
  • CoAP client and server
  • DHCPv6 client and server
  • DNSv6 client
NCP support
  • Spinel, a general purpose NCP protocol
  • wpantund, a user-space NCP network interface driver/daemon
  • Sniffer support via NCP Spinel nodes
Border Router
  • Web UI for configuration and management
  • Thread Border Agent to support an External Commissioner
  • NAT64 for connecting to IPv4 networks
  • Thread interface driver using wpantund

How will you use OpenThread?

If you're interested in contributing to the ongoing development of OpenThread, then the OpenThread GitHub repository is for you. There you will find all the code, including information on how to contribute, our style guide, code of conduct, licensing, and much more.

If you want to use OpenThread in your own products or for personal deployment, check the options below.

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Deploy a Thread network

Determine the hardware and platform design you wish to use to build and deploy your own Thread network. Add a Border Router to connect your Thread network to other network layers, such as Wi-Fi or Ethernet.
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Develop applications on top of a Thread network

Use the API Reference as a guide to all application development. IPv6, UDP, CoAP, DHCPv6, DNSv6...it's all there.
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Port OpenThread to a new hardware platform

Check out our Porting Guide, which walks you through all the steps necessary to port OpenThread to a new hardware platform.
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Get Thread Certification for your OpenThread product

OpenThread can be used for certification by the Thread Group. As a Thread reference stack, OpenThread makes certification easy.

News

Spotlight — Google I/O 2017

We were there!

Check out the video to see our OpenThread wall, with a live demonstration of a Thread network with a Border Router.

This network featured 10 nodes (TI CC2538 x2, TI CC2650 x2, NXP KW41Z x2, Nordic nRF52840 x2, Dialog DA15000, and Silicon Labs EFR32 as a joiner) and 2 Border Routers (Raspberry Pi 3B and NXP Pico-Pi-iMX7D).

Android Things LoWPAN API adds support for OpenThread

Dec 14, 2017

Android Things has announced support for OpenThread in its Developer Preview 6.1 LoWPAN API. Use a supported OpenThread platform in an NCP design to add Thread networking to your Android Things devices.

Border Router support for BeagleBone Black added

Nov 17, 2017

OpenThread Border Router now supports BeagleBone Black, a low-cost, open source, community-supported development platform featuring the Texas Instruments Sitara™ AM335x ARM Cortex-A8 processor.

Support for Microchip ATSAMR21G18A added

Nov 9, 2017

The Microchip ATSAMR21G18A is an IEEE 802.15.4 compliant single chip that combines an ARM® Cortex®-M0+ based 32-bit microcontroller and best-in-class 2.4GHz RF transceiver.

Who supports OpenThread?

Led by Nest, the following companies are contributing to the ongoing development of OpenThread.

Start using OpenThread today

All rights reserved. Java is a registered trademark of Oracle and/or its affiliates. Thread is a registered trademark of the Thread Group, Inc.

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