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RIOT is a real-time multi-threading operating system that supports a range of
devices that are typically found in the Internet of Things (IoT):
RIOT is based on the following design principles: energy-efficiency, real-time
capabilities, small memory footprint, modularity, and uniform API access,
independent of the underlying hardware (this API offers partial POSIX
compliance).
RIOT is developed by an international open source community which is
independent of specific vendors (e.g. similarly to the Linux community).
RIOT is licensed with LGPLv2.1, a copyleft license which fosters
indirect business models around the free open-source software platform
provided by RIOT, e.g. it is possible to link closed-source code with the
LGPL code.
## FEATURES
RIOT is based on a microkernel architecture, and provides features including,
but not limited to:
* support 100+ boards based on AVR, MSP430, ESP8266, MIPS, ARM7 and ARM Cortex-M
* the native port allows to run RIOT as-is on Linux, BSD, and MacOS. Multiple
instances of RIOT running on a single machine can also be interconnected via
a simple virtual Ethernet bridge
* You want to start the RIOT? Just follow our
[quickstart guide](https://doc.riot-os.org/index.html#the-quickest-start) or
try this
[tutorial](https://github.com/RIOT-OS/Tutorials/blob/master/README.md).
For specific toolchain installation, follow instructions in the
[getting started](https://doc.riot-os.org/getting-started.html) page.
* The RIOT API itself can be built from the code using doxygen. The latest
version of the documentation is uploaded daily to
If you compile RIOT for the native cpu and include the `netdev_tap` module,
you can specify a network interface like this: `PORT=tap0 make term`
There is a shell script in `RIOT/dist/tools/tapsetup` called `tapsetup` which
you can use to create a network of tap interfaces.
To create a bridge and two (or `count` at your option) tap interfaces:
./dist/tools/tapsetup/tapsetup [-c [<count>]]
## CONTRIBUTE
To contribute something to RIOT, please refer to our
[contributing document](CONTRIBUTING.md).
* RIOT OS kernel developers list
* devel@riot-os.org (https://lists.riot-os.org/mailman/listinfo/devel)
* RIOT OS users list
* users@riot-os.org (https://lists.riot-os.org/mailman/listinfo/users)
* RIOT commits
* commits@riot-os.org (https://lists.riot-os.org/mailman/listinfo/commits)
* Github notifications
(https://lists.riot-os.org/mailman/listinfo/notifications)
* Most of the code developed by the RIOT community is licensed under the GNU
Lesser General Public License (LGPL) version 2.1 as published by the Free
Software Foundation.
* Some external sources, especially files developed by SICS are published under
a separate license.
For more information, see the RIOT website:
[master-ci-badge]: https://ci.riot-os.org/RIOT-OS/RIOT/master/latest/badge.svg
[master-ci-link]: https://ci.riot-os.org/nightlies.html#master
[irc-badge]: https://img.shields.io/badge/IRC-join%20chat%20%E2%86%92-blue.svg
[irc-link]: https://webchat.freenode.net?channels=%23riot-os