1. LINE FOLLOWER ROBOT USING I-BOT mini V3

2. A Line follower is an autonomous robot which follows either black line in white are or white line in black area. Robot must be able to detect particular line and keep following it.
BLOCK DIAGRAM
An array of sensor is used to detect the line. Based on the status of sensors, special circuit or controller decides the position of line and also the required direction of motion required to follow the line. Motor driver circuit is used to ON/OFF the LEFT/RIGHT motors of the robot to provide desired motion.

3. BLACK-LINE FOLLOWER ROBOT WHITE-LINE FOLLOWER ROBOT

4. BLACK-LINE FOLLOWER ROBOT CASE 4 Ls = OFF CASE 3 Ls = ON Rs = ON
Rs = OFF
BLACK-LINE
FOLLOWER
ROBOT
CASE 3
Ls = ON Rs = ON
Ls = ON Rs = ON
CASE 1
Ls = ON
Rs = OFF
CASE 2
Ls = OFF
Rs = ON

5. BLACK LINE FOLLOWER ROBOT LOGIC TABLE
LEFT SENSOR
RIGHT SENSOR
MOVEMENT ON
FORWARD
OFF
LEFT TURN
RIGHT TURN
STOP

6. WHITE-LINE FOLLOWER ROBOT CASE 4 Ls = OFF CASE 3 Ls = OFF Rs = ON
Rs = OFF
WHITE-LINE
FOLLOWER
ROBOT
CASE 3
Ls = OFF Rs = ON
Ls = OFF Rs = OFF
CASE 1
Ls = OFF
Rs = OFF
CASE 2
Ls = ON
Rs = OFF

7. WHITE LINE FOLLOWER ROBOT LOGIC TABLE
LEFT SENSOR
RIGHT SENSOR
MOVEMENT ON
STOP
OFF
RIGHT TURN
LEFT TURN
FORWARD

8. THANK YOU