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In this paper, the robot analyses a path from its current position to a fixed target position and reach the target position. The obstacles which are present in the path are detected by the ultrasonic sensors, the distance between the obstacles and the robot is frequently calculated from every direction and the next movement of the robot will be based on the values obtained from the sensors. This robot moves to the target position without any human guidance or assistance.

obstacle avoidance
ultrasonic sensor
nuvoton board.
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