distortos
Object-oriented C++ RTOS for microcontrollers
...It targets ARM Cortex-M microcontrollers and is inspired by other embedded RTOSes like FreeRTOS but aims to provide a more modern C++ interface. distortos emphasizes modularity, portability, and ease of use in resource-constrained environments, making it ideal for IoT, robotics, and industrial automation applications. It includes a full-featured scheduler, thread management, and peripheral abstraction layers for common hardware components.