Add to ORKGThe work is devoted to the design of a competitive sumo robot for the Minisumo category. The aim of the bachelor thesis is to create a robot that is able to push its opponent out of the competition ring. The work deals with the design of the mechanical part of the robot, control electronics and software. The robot control is based on microcontroller ATMEL ATxmega32A4U. This, together with the DRV8874 H-bridges, provides control of a pair of DC motors. Feedback, for the correct orientation of the robot in space, is provided by four optical triangulation sensors and a single reflective optocoupler. Robot control software is written in C programming language