obstacle avoiding robot

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all about obstacle avoiding robot using arduino and ultrasonic sensor

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OBSTACLE AVOIDING ROBOT

ABHISHEK ANAND ADITYA KUMAR ADITYA ROSHAN ADARSH M.A.ABSTRACTAn obstacle avoiding robot can sense obstacle and dodge it.The ultrasonic sensors works as eyes for the robot detecting the obstacles.The microcontroller takes data from sensor and provides a route to avoid the obstacle.The robot moves with help of two motors, which drives the two wheels,a wheel is provided which is free to move in every direction to provide the needed maneuverability.

BLOCK DIAGRAMCOMPONENTS REQUIREDNAMEQUANTITYAPPROX. PRICE/ITEMARDUINO UNO1 500-600CHASSIS WITH 2 WHEELS1 250SENSOR(HC-SR04)1 80-160GEAR MOTORS2-REGULAR 200MOTOR DRIVER(L239D)1 150MISCELLANEOUS - 200ARDUINO UNO

HC-SR04

SERVO MOTORS

CIRCUIT DIAGRAMWORKINGSensor : HC-SR04 is an ultrasonic sensor which can detect distance of the object using sonar technologyIts a high accuracy sensor with range from 2cm-400cm, measuring angle of 30degIts not affected by sunlight and can also detect black objects unlike the optical sensors. It continuously transmits ultrasonic sound waves which is reflected back by the obstacles It is received by the sensor which in turn calculates the distance and sends to the microcontroller to take the necessary decision.

MICROCONTROLLER: Arduino uno is used which is based on the ATmega328P C.Its work is to take data from the sensor and make decision according to the routing algorithm and give to the motor driver(L239D).

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APPLICATION AN FUTURE SCOPEObstacle detection in mining vehicles.Automation system for cars.Autonomous cleaning robot.Lawn cleaning robot.In military as surveillance robot.