NuttX is a real-time embedded operating system (RTOS) which has got a small footprint. NuttX can be used in micro-controller environments and is fully scalable from tiny (8-bit) to moderate embedded (32-bit) systems.The goal of NuttX is to provide implementations of most standard POSIX OS interfaces to support a rich, multi-threaded development environment for deeply embedded processors.

Key features of “NuttX”

• Small Footprint, Modular and has micro-kernel.
• Rich Feature OS Set.
• Highly Scalable.
• POSIX and ANSI standards Compliance
• Real-Time with fully pre-emptible, fixed priority and round-robin scheduling.
• VxWorks-like task management and watchdog timers.
• FAT12/16/32 filesystem support.
• Networking utilities (DHCP, SMTP, TELNET, TFTP, HTTP).
• Totally Open with Non-restrictive BSD license.

The latest version of NuttX includes many new standard C library functions, improved and extended timing APIs, support for non-blocking sockets and several important bugfixes.

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