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     ZZZZZZZZZZZ               Z                                             

The friendly Operating System for IoT!

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 managment
  • high resolution timers
  • virtual, long-term timers
  • FAT file system
  • logging system
  • Wiselib support (C++ algorithm library, including routing, clustering, timesync, localization, security and more algorithms)
  • IPv6
  • TCP and UDP
  • 6LoWPAN
  • RPL


  • All sources and binaries that have been developed at Freie Universität Berlin are licensed under the GNU General Public License version 3 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: