Do not buy hardware yet. Use the FreeRTOS Windows Simulator (included in the official download). Follow the PDF's chapter on creating two tasks that toggle console output. Learn vTaskDelay() vs vTaskDelayUntil() .
FreeRTOS is the market-leading RTOS for microcontrollers. It is open-source, portable, and incredibly lightweight (a kernel can consume as little as 4KB to 9KB of ROM). freertos tutorial pdf
A PDF gives you the foundation, but the kernel evolves. Once you finish your chosen tutorial: Do not buy hardware yet
No pop-ups, no autoplay ads, no comment sections. Just you and the kernel architecture. no autoplay ads
: Configuring heap allocation schemes (e.g., heap_1.c to heap_4.c ). Specialized Guides Mastering the FreeRTOS™ Real Time Kernel