Obstacle Attacker

Components:

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

Explanation:
The ultrasonic sensor is used for measuring distance. Code is written in such a way ,when the distance is greater than 30 ,the robot moves in circle. When the distance is greater than 5 and less than 30 ,the robot moves in forward direction. Or it gets into attacking mode and approaches the target. Once distance becomes less than 5 , the robot moves backward for some time .Then it moves in a circle trying to detect the obstacles, depending upon the distance, the software decides further course of action.