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Implementation of Ultrasonic Sensor as a Radar for Obstacle Detection
A B S T R A C T
The Arduino UNO, ultrasonic sensor, servo motor, and Processing as visual software was used
to create a low cost ultrasonic radar system that can detect and determine the location of an
object, such as obstacles, in a short distance. Objects can be sensed up to 40 cm away from the
ultrasonic sensor and the ultrasonic radar's angular rotation can detect objects from 15˚ to 165˚
and counterclockwise. The obstacle objects will be displayed in the computer panel by running
the visual software. A comparative analysis of the distance error between the radar and the
obstacles is used to assess the feasibility of the proposed system. The findings obtained from
measurements of the obstacles are tabled to show that the planned design achieved a relatively
small error, with 90% as the lowest accuracy.
KEYWORDS
Arduino, Ultrasonic Sensor, Obstacle Detection
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