Improved Design of Obstacle Avoidance Robot using three Ultrasonic Sensors and ATMEGA328P Microcontroller
Mukesh Kumar Dey

Mukesh Kumar Dey, School of Electronics and Communication Engineering (SENSE), VIT University, Vellore, India.
Manuscript received on February 09, 2016. | Revised Manuscript received on February 15, 2016. | Manuscript published on March 05, 2016. | PP: 66-69 | Volume-6 Issue-1, March 2016. | Retrieval Number: A2805036116/2016©BEIESP
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Abstract: This paper proposes an alternative design for a cost effective and simplified version of the obstacle avoidance robot using three ultrasonic sensors. It also provides a dynamic algorithm which directs the robot to navigate smoothly in different environments, avoiding obstacles. The main objective of this paper is to improve the accuracy of the robot in detection and avoidance of obstacles at various angles. The paper talks about the design of the robot which is followed by the working principle of sensors and algorithm for the microcontroller. The paper finally makes a detailed explanation of the code for the obstacle avoidance strategy and draws a conclusion based on the designed robot.
Keywords: ATMEGA328P, Binary Logic, HC-SR04, Dynamic algorithm. I