Embedded Rust RTOS vs. C RTOS

The article compares async Rust (using Embassy) against C-based FreeRTOS on an STM32F446 microcontroller, evaluating them on interrupt latency, program size, RAM usage, and ease of programming. The author plans to test both with realistic, standard-configuration applications rather than heavily optimized versions to provide a fair baseline comparison. The piece explains how Rust async functions work as state machines using futures and wakers, which enable efficient task execution by only polling when needed.