NuttX
NuttX is a real-time operating system (RTOS) designed for embedded systems, particularly microcontrollers and small-scale applications. It is open-source, highly configurable, and supports a wide range of architectures, including ARM, RISC-V, and x86. NuttX provides a POSIX-compliant API, making it familiar to developers with Linux experience, and includes features like file systems, networking, and power management.
Developers should learn NuttX when working on resource-constrained embedded projects that require real-time performance, such as IoT devices, robotics, or automotive systems. It is ideal for scenarios where a lightweight, customizable RTOS is needed to manage hardware efficiently while maintaining compatibility with standard programming interfaces. Use cases include sensor networks, drones, and industrial automation where reliability and low latency are critical.