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Line Follower Robot
PRESENTED BY
MOHIT KUMAR
B.Tech(ECE)
Principle
Principal of working of line follower is related to light. We use here
the behavior of light at black and white surface. When light fall on
a white surface it is almost full reflected and in case of black
surface light is completely absorbed. This behavior of light is used
in building a line follower robot.
Circuit diagram
Circuit Explanation
 Sensor section:
This section contains IR diodes, potentiometer, Comparator (Op-Amp) and
LED’s. Potentiometer is used for setting reference voltage at comparator’s
one terminal and IR sensors are used to sense the line and provide a
change in voltage at comparator’s second terminal
 Control Section:
Arduino Pro Mini is used for controlling whole the process of line follower
robot. The outputs of comparators are connected to digital pin number 2
and 3 of arduino. Arduino read these signals and send commands to driver
circuit to drive line follower.
 Driver Section:
Driver section consists motor driver and two DC motors. Motor
driver is used for driving motors because arduino does not supply enough
voltage and current to motor.Arduino sends commands to this motor
driver and then it drive motors.
Working
 Line follower robot senses black line by using sensor and
then sends the signal to arduino. Then arduino drives the motor ac
according to sensors' output.
 Here in this project we are using two IR sensor modules namely left sensor
and right sensor. When both left and right sensor senses white then robot
move forward.
 If left sensor comes on black line then robot turn left side.
 If right sensor sense black line then robot turn right side until both sensor
comes at white surface. When white surface comes robot starts moving
on forward again.
Applications
 These can be used in public places like shopping malls,
museums etc to provide path guidance.
 These can also be used at homes for domestic
purposes like floor cleaning etc.
 Can be used in any other place requiring a particular
item to be delivered from a place to other.
 These robots can be used as automated equipment
carriers in industries replacing traditional conveyer
belts.
Advantages
 Robot movement is automatic
 It is used for long distance applications
 Simplicity of building
 Fit and forget system
 Used in home, industrial automations etc.
.

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LINE FOLLOWER ROBOT

  • 1. Line Follower Robot PRESENTED BY MOHIT KUMAR B.Tech(ECE)
  • 2. Principle Principal of working of line follower is related to light. We use here the behavior of light at black and white surface. When light fall on a white surface it is almost full reflected and in case of black surface light is completely absorbed. This behavior of light is used in building a line follower robot.
  • 4. Circuit Explanation  Sensor section: This section contains IR diodes, potentiometer, Comparator (Op-Amp) and LED’s. Potentiometer is used for setting reference voltage at comparator’s one terminal and IR sensors are used to sense the line and provide a change in voltage at comparator’s second terminal  Control Section: Arduino Pro Mini is used for controlling whole the process of line follower robot. The outputs of comparators are connected to digital pin number 2 and 3 of arduino. Arduino read these signals and send commands to driver circuit to drive line follower.  Driver Section: Driver section consists motor driver and two DC motors. Motor driver is used for driving motors because arduino does not supply enough voltage and current to motor.Arduino sends commands to this motor driver and then it drive motors.
  • 5. Working  Line follower robot senses black line by using sensor and then sends the signal to arduino. Then arduino drives the motor ac according to sensors' output.  Here in this project we are using two IR sensor modules namely left sensor and right sensor. When both left and right sensor senses white then robot move forward.  If left sensor comes on black line then robot turn left side.  If right sensor sense black line then robot turn right side until both sensor comes at white surface. When white surface comes robot starts moving on forward again.
  • 6. Applications  These can be used in public places like shopping malls, museums etc to provide path guidance.  These can also be used at homes for domestic purposes like floor cleaning etc.  Can be used in any other place requiring a particular item to be delivered from a place to other.  These robots can be used as automated equipment carriers in industries replacing traditional conveyer belts.
  • 7. Advantages  Robot movement is automatic  It is used for long distance applications  Simplicity of building  Fit and forget system  Used in home, industrial automations etc.
  • 8. .