3-Way Infrared Line Tracking Sensor Module

The 3-Way Infrared Line Tracking Sensor

Module is a compact optical sensing board designed to detect contrast differences on surfaces for line following applications in robotics and automation. It integrates three infrared emitter-receiver pairs arranged in a row to sense dark lines on lighter backgrounds (and vice-versa). Each channel provides a digital output signal indicating line detection, making it easy to interface with microcontrollers like Arduino, ESP, PIC, and others.

This module is ideal for small line-following robots, maze solvers, autonomous vehicles, and educational projects requiring real-time path detection. Its simple interface and adjustable potentiometers (on many variants) help refine sensitivity for different surface conditions.

KEY FEATURES

• Three independent IR line tracking sensors
• Digital outputs for each channel
• Adjustable sensitivity (on supported models)
• Fast response for real-time detection
• Compact and lightweight design
• Easy interface with microcontrollers
• Ideal for robotics and automation projects

SPECIFICATIONS

• Number of Channels 3
• Sensor Type Infrared emitter-receiver pairs
• Output Type Digital signal per channel
• Operating Voltage 3.3V to 5V DC
• Detection Distance Few millimeters above surface
• Response Time Fast optical detection
• Board Material Standard PCB with components

INTERFACES



• VCC Power supply input
• GND Ground
• OUT1 Channel 1 digital output
• OUT2 Channel 2 digital output
• OUT3 Channel 3 digital output