Embedded Rust RTOS vs. C RTOS

The article compares Embassy async Rust and FreeRTOS/C on an STM32F446ZET6 microcontroller, measuring interrupt latency, program size, RAM usage, and programming effort. It implements identical tasks: LED blinking, button-driven LED control, and message queue logging, using static allocation and standard compiler optimizations. Results show how each model handles cooperative multitasking versus pre-emptive threads and the impact on real-time performance.