FreeRTOS alternatives

[hassan789]

May I ask what is so special about NuttX ?
Never heard of it

It is a popular embedded OS for microcontrollers (unlike FreeRTOS, which is just the kernel, Nuttx is a full OS), that has a lot of features:
http://nuttx.org/

[rudi ;-)]

ESP32 and NuttX RTOS port or here directly

ESP32 NuttX Port

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