Robot for national competition of RoboRave in Czech Republic called: Amavet
National: http://amavet.cz/
International: http://roboquerque.org/
Block-scheme.png is best for imagination how it works.
WebCam + Raspberry Pi looking for candle. If Candle is see. Raspberry send information about position to STM32F4 over USART.
STM32F4 is main procesor with main program.
This robot wins first place in Czech republic in year 2013! But team from second place, flew to New Mexico and wins first place in International competition and defeated the home teams!
Final try from Mexico: http://www.youtube.com/watch?v=NQRlYmdfuB4