obo-One is a robot competition category of bipedal humanoid robots. The first ROBO-ONE contest was held in Japan in 2002 and consisted of an initial judged autonomous "Demonstration" stage, followed by one-on-one matches. In Japan, ROBO-ONE has spawned a whole series of related competitions including ROBO-ONE J, ROBO-ONE Special, ROBO-ONE Grand Prix, and the ROBO-ONE Technical Conference events. ROBO-ONE type contests have been held in several other countries including South Korea (official) and the United states (unofficial held by Robogames).
The robots are usually built with RC Servos as actuators and mounted together with sheet metal shapes. The most common frame material is aluminum. However, there have been entries constructed with steel, plastic, and even wood. Different sensors are used by the robot for balance and to perceive its surroundings. A small onboard micro controller or equivalent is used to control the robots movements and if the robot is autonomous it is also programmed to adjust the robots behavior in response to sensor inputs.
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