Apache NuttX is a free and open-source real-time operating system (RTOS) with an emphasis on technical standards compliance and on having a small footprint. It is scalable from 8-bit to 64-bit microcontroller environments.[2][3] The main governing standards in NuttX are from the Portable Operating System Interface (POSIX) and the American National Standards Institute (ANSI)[4]. Further standard application programming interfaces (APIs) from Unix and other common RTOSes (such as VxWorks) are adopted for functions unavailable under these standards,[citation needed] or inappropriate for deeply embedded environments, such as the fork() system call.[citation needed]
NuttX was initially released in 2007 under the permissive BSD license.[5] In December 2019, it began incubation at the Apache Software Foundation.[6]; its license was changed from the BSD license to the Apache License and it graduated to a top-level project in November 2022.[7]
Projects using NuttX
- PX4 autopilot drones.[8]
- Samsung TizenRT based on NuttX RTOS.[9][10]
- Xiaomi Vela, an IoT software platform based on NuttX.[11][12]
References
- ^ “Apache NuttX-12.13.0”. Retrieved April 21, 2026.
- ^ “About Apache NuttX”. nuttx.apache.org. Retrieved June 23, 2023.
- ^ “Getting started with NuttX and ESP32”. Retrieved April 21, 2026.
- ^ Bertoleti, Pedro (February 2023). “The NuttX Engineer”. Circuit Cellar. KCK Media Corp. Retrieved April 22, 2026.
- ^ “NuttX Project at SourceForge”. May 29, 2021. Retrieved October 18, 2023.
- ^ “NuttX Project Incubation Status”. incubator.apache.org. Retrieved April 21, 2026.
- ^ “The Apache Software Foundation Announces Apache® NuttX™ as a Top-Level Project”. news.apache.org. November 17, 2022. Retrieved June 23, 2023.
- ^ “Basic Concepts PX4 Guide”. Retrieved January 1, 2026.
- ^ TizenRT repo
- ^ “What is NuttX RTOS and why should you care?”. embedded. Retrieved April 22, 2026.
- ^ “Xiaomi Unveils Xiaomi HyperOS, a Human-centric Operating System Designed and Tailored to Connect Personal Devices, Cars, and Smart Home Products in a Smart Ecosystem”. Retrieved December 12, 2023.
- ^ “Xiaomi Vela IoT Platform is Being Open-Sourced Based on NuttX Real-time OS”. November 17, 2023. Retrieved December 12, 2023.
External links
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