Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
-
Updated
Dec 12, 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.
ZMK Firmware Repository
ZSWatch - the Open Source Zephyr™ based Smartwatch, including both HW and FW.
Zephyr SDK (Toolchains, Development Tools)
Open source DWM1001 + Zephyr example implementations
Firmware SDK enabling any IoT device to connect to Golioth - the Universal Connector for IoT
USB to CAN adapter firmware
Golioth SDK For Zephyr
Proof of concept where swapper implemented as external module
Dynamically load apps to zephyr RTOS
Released October 17, 2017