Zephyr OS

Zephyr is a real-time operating system for embedded devices and microcontrollers. Applications combine C or C++ code with Kconfig settings and devicetree hardware descriptions, then compile into firmware for a specific board. OpenFactory builds Zephyr 4.4.2 for QEMU x86-64, Nordic nRF52840 DK, and Espressif ESP32 DevKitC. Launch the QEMU shell below to explore commands such as help, version, and kernel. You can also build upstream samples or your own application and download firmware for local flashing. Emulator results and successful compilation are separate from testing on a physical board.

Select a version of Zephyr OS to try online: