ZZZZZZ
                    ZZZZZZZZZZZZ
                  ZZZZZZZZZZZZZZZZ
                 ZZZZZZZ     ZZZZZZ
                ZZZZZZ        ZZZZZ
                ZZZZZ          ZZZZ
                ZZZZ           ZZZZZ
                ZZZZ           ZZZZ
                ZZZZ          ZZZZZ
                ZZZZ        ZZZZZZ
                ZZZZ     ZZZZZZZZ       777        7777       7777777777
          ZZ    ZZZZ   ZZZZZZZZ         777      77777777    77777777777
      ZZZZZZZ   ZZZZ  ZZZZZZZ           777     7777  7777       777
    ZZZZZZZZZ   ZZZZ    Z               777     777    777       777
   ZZZZZZ       ZZZZ                    777     777    777       777
  ZZZZZ         ZZZZ                    777     777    777       777
 ZZZZZ          ZZZZZ    ZZZZ           777     777    777       777
 ZZZZ           ZZZZZ    ZZZZZ          777     777    777       777
 ZZZZ           ZZZZZ     ZZZZZ         777     777    777       777
 ZZZZ           ZZZZ       ZZZZZ        777     777    777       777
 ZZZZZ         ZZZZZ        ZZZZZ       777     777    777       777
  ZZZZZZ     ZZZZZZ          ZZZZZ      777     7777777777       777
   ZZZZZZZZZZZZZZZ            ZZZZ      777      77777777        777
     ZZZZZZZZZZZ               Z
        ZZZZZ

The friendly Operating System for IoT!

FEATURES

RIOT OS is an operating system for Internet of Things (IoT) devices. It is based on a microkernel and designed for

• energy efficiency
• hardware independent development
• a high degree of modularity

Its features comprise

• a preemptive, tickless scheduler with priorities
• flexible memory management
• high resolution timers
• virtual, long-term timers
• 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
• Wiselib support (C++ algorithm library, including routing, clustering, timesync, localization, security and more algorithms)
• IPv6
• TCP and UDP
• 6LoWPAN
• RPL

GETTING STARTED

• You want to start the RIOT? Just follow our Getting started documentation
• The RIOT API itself can be built from the code using doxygen. The latest version is uploaded daily to http://riot-os.org/api.

USING THE NATIVE PORT WITH NETWORKING

If you compile RIOT for the native cpu and include the nativenet module, you can specify a network interface like this: PORT=tap0 make term

SETTING UP A TAP NETWORK

There is a shellscript in RIOT/cpu/native called tapsetup.sh which you can use to create a network of tap interfaces.

USAGE To create a bridge and two (or count at your option) tap interfaces: ./tapsetup.sh create [count]

EXAMPLE APPLICATIONS

In the examples directory you can find some example applications. The default application demonstrates all available features for the current platform.

For example, you can use it to the test the native networking by running two instances: make term PORT=tap0 and make term PORT=tap1. Now configure two different addresses for both RIOT instances by typing addr 1 and addr 2 respectively and send a text message from one "node" to another by typing txtsnd 2 hello on the first "node".

CONTRIBUTE

To contribute something to RIOT, please refer to the development procedures and read all notes for best practice.

MAILING LISTS

• RIOT OS kernel developers list
• devel@riot-os.org (http://lists.riot-os.org/mailman/listinfo/devel)
• RIOT OS users list
• users@riot-os.org (http://lists.riot-os.org/mailman/listinfo/users)
• RIOT commits
• commits@riot-os.org (http://lists.riot-os.org/mailman/listinfo/commits)
• Github notifications
• notifications@riot-os.org (http://lists.riot-os.org/mailman/listinfo/notifications)

LICENSE

• All sources and binaries that have been developed at Freie Universität Berlin are licensed under the GNU Lesser General Public License version 2 as published by the Free Software Foundation.
• Some external sources, especially files developed by SICS are published under a separate license.

All code files contain licensing information.

For more information, see the RIOT website:

http://www.riot-os.org