A real-time OS, that is secure and customizable to the developer's needs. Zephyr is designed to be used on resource-constrained systems and supports different architectures (e.g., Intel x86, Tensilica, Xtensa, etc.). It is also highly configurable and its application and kernel codes are both executed in the same address space.
|Linux Foundation, Wind River Systems
|Latest stable version
|Intel, Linaro, NXP
It was initially a Wind River Systems project for IoT services, but later became part of the Linux Foundation.