Mini Arduino line follower robot tracks the white path on a black surface.

Arduino Uno R3 is used as the controller board of the line follower robot.

The robot has RS Arduino Uno Shield which contains the input / output headers, on/off switch and a L293D motor driver on it.

3 TCRT5000 sensors are used for tracking the line. A 74HC14 Schmitt triger is used for the sensor circuit.

Robot chassis is prepared with 3 mm thick plexiglass material.

The robot has two 6 V geared DC motors, two wheels and a caster ball wheel.

Arduino line follower robot is powered by a 9 V alkaline battery.