嵌入式项目工程架构, 嵌入式调试工具, 第三方组件等
Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
OpenThread released by Google is an open-source implementation of the Thread networking protocol
FreeRTOS kernel files only, submoduled into https://github.com/FreeRTOS/FreeRTOS and various other repos.