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Obstacle Avoider


  • Arduino Uno
  • Chassis & wheels(2)
  • Caster wheel
  • Mini Breadboard
  • Ultrasonic sensor
  • Motor driver L293D
  • BO Motor(2)
  • Battery with battery holder
  • Jumper wires

The ultrasonic sensor is used for measuring distance. The sensor there is a pin called Echo which sends ultrasonic waves .The waves go in forward direction, if there is an obstacle they are reflected . The trig pin detects the reflected waves. The arduino calculates the distance .Code is written in such a way ,when the distance is less 5 ,the robot moves backward for some time (it avoids obstacle) rotates in circle to check for any other obstacles .

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