DuinOS is a small multithreading real time operating system (RTOS), based on the FreeRTOS kernel, for Arduino compatible boards.

It's installed as an Arduino core, and currently supports the following AVR processors:

• ATmega168
• ATMega328
• ATMega644
• ATMega1280
• ATMega1284

It's developed at RG.Labs as part of the Multiplo project.

There has been contributions from:

• Robert Sanders (http://github.com/rsanders/DuinOS).
• Michael Grigorev (http://novell.chel.ru/get.php?file=DuinOS_v0.2_Alpha).

Useful links:

• The current documentation can be found at http://robotgroup.com.ar/duinos/wiki
• To see the original FreeRTOS docs and examples you can visit http://www.freertos.org
• There is a forum discussion thread at: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1256745982