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Line follower robots are the basic and easy to make robots on earth.The Line follower robots are the robots which tracks a line which is drawn and move s by the path of the line.
What do you require to make a line follower...?
- Good sensors
- Motors
- And some intelligence....
The line follower robot works by following the black line on white surface or white line on black surface.It means we have to detect white and black surface
So how would be our sensors…?
Our sensors should reflect from any of these surfaces…
As we are using the property of reflection so “Infrared Light (IR)” would be an ideal choice… Because IR not get affected by other light.
steps to follow the line (using single sensor):
-Start
-Check for line
-Line detected go right
-Check for line
-If no line turn left till line detected
Algorithm for building a line follower (using two sensors):
-Start
-Check for line
-If both sensors are on line go straight
-If only left sensor is on the line, turn left till both sensors are on the line
-If only right sensor is on the line, turn right till both sensors are on the line
Circuit diagram:
1)IR SENSOR:
2)Motor driver:
Notes:
Some useful guidelines are for a line…
-Sensors should be placed as far away from the motors as possible so that
we have enough time to change motor direction.
-The weight of the machine should be evenly balanced
-Construction of the robot and sensor placement will depend upon the speed
of the motors to be used
some ready made boards:
1)Line Follower Module With motor driver(recommended)
From www.robokits.co.in
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