Zephyr RTOS

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.)

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zephyrproject-rtos /zephyr

Star13.8k

Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.

iot real-time microcontroller embedded bluetooth bluetooth-le mcu rtos zephyr zephyros embedded-c zephyr-rtos

UpdatedNov 29, 2025
C

platformio /platformio-core

Star8.7k

Your Gateway to Embedded Software Development Excellence 👽

debugging iot arduino esp8266 avr package-manager unit-testing arm microcontroller embedded libraries firmware esp32 ide platformio build-system cmsis rtos risc-v zephyr-rtos

UpdatedSep 21, 2025
Python

ZSWatch /ZSWatch

Star3k

ZSWatch - the Open Source Zephyr™ based Smartwatch, including both HW and FW.

display bluetooth ble sensors smartwatch zephyr smart-watch lvgl angle-of-arrival nrf-connect zephyr-rtos nrf5340 nordic-semiconductor nrf53 nrf-connect-sdk zswatch gc9a01a

UpdatedNov 28, 2025
C

maksimdrachov /zephyr-rtos-tutorial

Star412

Zephyr: Tutorial for beginners

tutorial embedded zephyr zephyr-rtos

UpdatedApr 7, 2024
C

golioth /awesome-zephyr-rtos

Star198

🪁 A curated list of awesome projects and resources for the Zephyr RTOS project.

lists iot awesome real-time microcontroller embedded awesome-list mcu rtos zephyr zephyr-rtos

UpdatedDec 11, 2024

swedishembedded /control

Star146

Embedded Firmware Control Systems Toolbox (Pure C and GNU Octave)

c firmware embedded-systems control-systems system-identification zephyr embedded-c zephyr-rtos system-identification-toolbox

UpdatedOct 8, 2023
MATLAB

CANnectivity /cannectivity

Star131

USB to CAN adapter firmware

usb can canbus zephyr usb-device zephyr-rtos gs-usb zephyrproject-rtos usb-to-can cannectivity

UpdatedNov 24, 2025
C

beriberikix /zephyr-vscode-example

Star115

An example configuration for setting up Visual Studio Code for Zephyr application development

vscode visual-studio-code zephyr-rtos

UpdatedAug 9, 2024

golioth /golioth-firmware-sdk

Star105

Firmware SDK enabling any IoT device to connect to Golioth - the Universal Connector for IoT

iot coap embedded ota firmware esp32 rpc internet-of-things iot-platform freertos lte esp-idf software-update zephyr firmware-update ota-firmware-updates modustoolbox zephyr-rtos nordic-semiconductor

UpdatedNov 28, 2025
C

makerdiary /nrf52840-connectkit

Star103

Rapid prototyping kit based on the nRF52840 Multiprotocol SoC, featuring Bluetooth LE, Thread, Zigbee & NFC, Easy-to-use Form Factor, nRF Connect SDK and CircuitPython support

bluetooth-low-energy openthread circuitpython zigbee nrf52840 zephyr-rtos ble-sniffer nrf-connect-sdk 802154-sniffer