Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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Oct 15, 2025 - C
The Zephyr RTOS is a scalable real-time operating system (RTOS) supporting multiple hardware architectures, optimized for resource constrained devices, and built with security in mind. It is based on a small-footprint kernel designed for use on resource-constrained systems: from simple embedded environmental sensors and LED wearables to sophisticated smart watches and IoT wireless gateways. The kernel supports multiple architectures and a large number of supported boards (and growing.)
Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
Versatile Prototyping Kit based on the nRF9151 SiP supporting LTE-M/NB-IoT Worldwide, DECT NR+ and GNSS
Started as a firmware for https://hackaday.io/project/177237-corexy-pen-plotter, possibly could be adapted to other CNCs as well.
Rapid Prototyping Kit based on the iMX RT1011, featuring Arm Cortex-M7 @ 500 MHz, Rich features & peripherals, Easy-to-use Form Factor, Zephyr RTOS and CircuitPython support
Zephyr RTOS Tutorials with Raspberry Pi Pico. For more, please see the blog post below.
Sublime Text 3 highlight script for the Kconfig language.
Rapid Prototyping Kit for Your Next-Gen IoT Devices powered by the nRF54L15 Multiprotocol SoC
ZephyrOS, an Operating System Operating Sucklessly
Zephyr OS Workspace with device drivers and VS Code Setup.
Devicetree Highlighter for Sublime Text 3 (dts, dtsi).
Zephyr RTOS Button sample for Raspberry Pi Pico with debug capability on VS Code
Device SDK for Spotflow embedded observability platform.
[Not released] C driver for sub ghz module RFM69HCW
Zephyr OS Basic Button Input project with Polling method using STM32F3DISCOVERY Board
Released October 17, 2017