Line Following Robot Using Arduino

Line Following Robot Using Arduino

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  Line Following Robot UsingArduino
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  Line Following RobotUsing Arduino  The line Following Robot detects a black line on a white surface and moves forward following line.  If a black line is not detected, the line following robot moves forward for searching for a black line to follow.  Once the line following robot detects a black line, it will begin following the black line.
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  Components of LineFollower Robot 1. Arduino UNO 2. L293D Motor Driver IC 3. Dc Motors x 2 4. Robot Chassis 5. IR Sensor Module x 2 6. Black Tape (Electrical Insulation Tape) 7. Connecting Wires 8. Power supply (9V x 2)
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  Line Following RobotUsing Arduino L293D IC • L293D is a dual H-bridge motor driver integrated circuit. • L293D contains two inbuilt H-bridge driver circuits. • The two DC motors can be driven simultaneously, both in forward and reverse direction. • One H-bridge is capable to drive a dc motor in bidirectional
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  Line Following RobotUsing Arduino • L293D is a 16 pin IC having two enables pins which should always be remain high to enable both the H-bridges. • Enable pins 1 and 9 must be high for motors to start operating. • The two motors can be controlled by input logic at pins 2 & 7 and 10 & 15.
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  IR Sensor • IRsensor consists of IR Led and Photo Diode. • IR Led transmits Infrared light and photo diode receives the infrared light. • When light fall on a white surface it is almost full reflected • Black surface light is completely absorbed • When infrared rays falls on white surface, it’s reflected back and catched by photodiodes which generates some voltage changes. • When IR light falls on a black surface, light is absorb by the black surface and no rays are reflected back, thus photo diode does not receive any light or rays.
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  ARDUINO CODE
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  Line Following RobotUsing Arduino When both left and right sensor senses white then robot move forward.
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  Line Following RobotUsing Arduino  If left sensor comes on black line, then robot turn left side.
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  Line Following RobotUsing Arduino  If right sensor sense black line, then robot turn right side until both sensor comes at white surface.
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  Line Following RobotUsing Arduino  If both sensors come on black line, robot stops.
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  Thank You