The Zephyr ProjectTM strives to deliver the best-in-class RTOS for connected resource-constrained devices, built to be secure and safe.

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Secure

  • Developed with security in mind
  • Includes CNA with PSIRT response team

Open Source

  • Available through the Apache 2.0 open source license
  • Free to use in commercial and non-commercial solutions

Product Ready

  • Long term support (LTS) with security updates
  • Certification ready with Auditable

Connected

  • Supports Bluetooth® Low Energy, Wi-Fi*, 802.15.4
  • Supports standards like 6LoWPAN, CoAP, IPv4, IPv6, Ethernet, USB, CAN and Thread

Complete flexibility & freedom of choice

  • Open source & neutral governance
  • Supports multiple hardware architectures
  • Small footprint: scales from small Cortex-M devices to multi-core 64-bit CPUs

Connect embedded devices securely to any cloud

  • Multiple protocol options including BLE mesh and Thread
  • Supporting industrial, automotive, smart city and smart home
  • Cloud agnostic – Connect with transport layer security to any cloud

Develop products with safety built in

  • Long-term support
  • In-depth security development lifecycle
  • Functional safety certification coming soon

200+ Boards Supported

Zephyr supports more than 200 boards. Search our list for the hardware used in your application. This diversity of supported boards gives developers and product manufacturers multiple options to solve their embedded RTOS challenges with Zephyr. If your board is not supported out of the box, adding support for a new board is simple.

Browse Supported Boards

As a founding member of the Zephyr Project, we are excited to support this latest release that brings new feature enablement and support to our expanding portfolio of i.MX RT crossover processors. The Zephyr 1.14 LTS release provides developers a well-tested, stable foundation for immediate project start and is based on a rich, open source microcontroller ecosystem that supports exciting new applications.

Maureen HelmNXP Microcontroller Software Architect and Zephyr Technical Steering Committee member

We are very excited to see that the Zephyr Project has gotten to the major milestone this LTS release is. Having the long term support option is something which is very often requested by our customers. This is especially the case for segments where development runs over longer times or for products with long lifecycles. Having the opportunity to introduce minor patches without rebasing the entire firmware framework is a major advantage for these users.

Paal KastnesTechnical Marketing Manager with Nordic Semiconductor

With the release of Zephyr 1.14 LTS, developers can focus on differentiation with the confidence that the software they are developing on always has the important fixes and latest security updates. Linaro is pleased to have helped drive the release which provides developers with a stable set of API for real world applications on constrained devices.

Kumar GalaLinaro IoT and Embedded Group (LITE) Technical Lead and Zephyr Project 1.14 LTS Release Manager

Platinum Members

Learn More About Membership

Zephyr project members help shape the direction of the project and provide guidance to help all members of the community get the most out of Zephyr.

41252
Commits
687
Contributors
37
Repositories
16334
Pull Requests Closed

Statistics last updated on June 5, 2020

September 22, 2020 in Blog, News, Top News

Linaro Connect & Zephyr

Linaro is hosting its annual conferences a little differently this year - all their conferences are virtual! Join Linaro Connect online this week from September 22-24. This event will be…
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September 20, 2020 in Events, Top Event, Uncategorized

(Virtual – October 26-29) Open Source Summit Europe

Open Source Summit + Embedded Linux Conference Europe 2020 is a Virtual Experience, happening October 26-29 in the Greenwich Mean Time Zone. Open Source Summit is the leading conference for…
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September 20, 2020 in Events, Top Event

(Webinar – September 24) Introduction to the Zephyr RTOS

On September 24, the Zephyr Project and Nordic Semiconductor are hosting a free webinar that offers a comprehensive introduction to the fastest growing RTOS. Kate Stewart, Senior Director of Strategic…
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September 10, 2020 in Blog, News, Top News

Blink an LED using Linux, Zephyr & Greybus via Bluetooth

Written by Christopher Friedt, P.Eng. M.Sc., President & CEO, Friedt Professional Engineering Services, Inc In an earlier blog, Christopher shared how to blink and LED using Linux, Zephyr RTOS and Greybus…
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