Apache NuttX is a mature, real-time embedded operating system (RTOS) https://nuttx.apache.org/
Find a file
simbit18 8500421d97 ci/platforms/darwin.sh: bump Espressif esptool
- Bump Espressif esptool 5.2.0

   #18696

Signed-off-by: simbit18 <simbit18@gmail.com>
2026-04-10 14:34:28 -03:00
.github .github/build.yml: improve ntfc installation 2026-04-10 09:17:03 +08:00
arch arch/risc-v: Enable low power mode for ESP32-P4 2026-04-10 14:33:52 -03:00
audio
binfmt
boards arch/risc-v: Enable low power mode for ESP32-P4 2026-04-10 14:33:52 -03:00
cmake cmake: add -D__NuttX__ to preprocessor 2026-04-10 12:22:24 -03:00
crypto
Documentation Documentation: Power Management for ESP32-P4-Function-EV-Board 2026-04-10 14:33:52 -03:00
drivers video/gc0308: implement V4L2 horizontal flip control 2026-04-10 10:47:07 +02:00
dummy
fs fs: rpmsgfs_client: add init message to unlock semaphore 2026-04-09 14:07:06 +08:00
graphics
include
libs
mm
net net/udp: fix conn_unlock not called outside conditional block 2026-04-09 03:04:15 +08:00
openamp
pass1
sched
syscall
tools ci/platforms/darwin.sh: bump Espressif esptool 2026-04-10 14:34:28 -03:00
video
wireless
.asf.yaml
.codespell-ignore-lines
.codespellrc
.editorconfig
.gitignore
.gitmessage
.pre-commit-config.yaml
.yamllint
AUTHORS
CMakeLists.txt
CONTRIBUTING.md
INVIOLABLES.md
Kconfig
LICENSE
Makefile
NOTICE
README.md
ReleaseNotes

POSIX Badge License Issues Tracking Badge Contributors GitHub Build Badge Documentation Badge

Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).

For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.

Getting Started

First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.

Documentation

You can find the current NuttX documentation on the Documentation Page.

Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.

The old NuttX documentation is still available in the Apache wiki.

Supported Boards

NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.

Contributing

If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.

License

The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.