Getting up to speed with Zephyr OS on microcontrollers @ZephyrIoT

Zephyr is a small real-time operating system (RTOS) for connected, resource-constrained and embedded devices (with an emphasis on microcontrollers) supporting multiple architectures and released under the Apache License 2.0. Zephyr includes a kernel, and all components and libraries, device drivers, protocol stacks, file systems, and firmware updates, needed to develop full application software.

It is a connecting technology that spans the “low-level” and “high-level” components of an embedded software system. From Low-Level drivers, bootloaders, an RTOS kernel, networking APIs all the way to the build system and configuration tools, Zephyr contains of the pieces needed for a modern embedded project. Being able to connect the dots from hardware concept through booting the kernel can seem like a daunting task!

NXP has a new white paper titled, “From Hardware Concept to Zephyr Bring Up—The Road to Using the i.MX RT685 Crossover MCU with Zephyr.” This paper illuminates a path that will take you from the bare SOC through PCB design, board bring up and getting to the shell.  Eli Hughes, NXP Pro Support Engineer writes:

I specifically chose a specialized part, the NXP i.MX RT685, as it is an interesting SOC whose capabilities lie between the traditional MCU domain and the Applications Processor domain. Seeing an end-to-end flow on complex SoC will help build confidence that you can start from scratch and bring up a working system. The world needs true “Full Stack” engineers who can bridge multiple disciplines.

You can read the paper here.

And check out the video “Should I Care About Zephyr OS? – Real Experiences of an RTOS Expert” on the page here:

Join us for an insightful presentation by Eli Hughes, one of our NXP software experts, as he explains how the open-source Zephyr OS is more than “just an RTOS”. We’ll explore Zephyr’s inherent capabilities, along with a number of well-tested facilities that developers can leverage in their pursuit of IoT innovation while managing complexity.

In this session, we will investigate what Zephyr is, what it is not, and how it compares to other common RTOS solutions. Attendees will walk away with a better understanding of what problems Zephyr can solve, how it can accelerate their embedded projects, and be better informed for future discussions around embedded firmware architecture.


Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in! adafruit.com/mastodon

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.