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Algorithm

When the sensors detect
the line. Hence the robot
moves forward.

Output

The Line Follower Robot moves autonomously by following a designated path, such as a black line on
a white surface. This demonstrates how robots can be programmed to detect and respond to their
environment using sensors. The robot uses infrared sensors to constantly track the line and adjust
its movements to stay on course.

Concepts

Sensing and Detection: Students will understand how IR sensors detect differences in colour
(black line on a white surface) and how the robot processes this information to follow a specific
path.

Automation and Control: This activity introduces the concept of automation, where the robot
can function independently using programmed logic, showcasing how machines can perform tasks
without human intervention.

Observation

In the Line Follower Robot activity, students will observe how the robot moves and adjusts its direction
by detecting the line through its infrared sensors. They will notice that when the robot encounters a
curve or turn, it automatically aligns itself to stay on track. This practical demonstration reinforces
concepts of automation, robotics, and sensor technology, giving students a deeper understanding of
how machines can interact with their surroundings and operate autonomously.

Application

Automated Guided Vehicles (AGVs): Line follower
robots are used in industries to transport materials
automatically along predefined paths.

Working Principle of Light Follower Robot

Light Follower Robot is a robot that can detect and move toward a light source. The key component
in such a robot is the Light Dependent Resistor (LDR), which senses the intensity of light. The robot’s
movement is controlled based on how much light the LDR detects, making it “follow” the light.

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