4 Channel IR Infrared Tracing Sensor Module

The 4 Channel IR Infrared Tracing Sensor Module reads the boundary between a dark line and a light surface using four independent IR (Infrared) emitter and receiver pairs. The 4 ch ir tracking sensor arduino works on 3.3V to 5V DC and outputs four separate digital signals, one per channel. Detection range adjusts from 1mm to 60cm using onboard potentiometers (small variable resistors).

The 4 ch ir infrared sensor uses IR reflectance sensing, where each channel emits infrared and measures how much bounces back from the surface below. One non-obvious detail — a highly polished white floor can reflect so much infrared that it triggers false detection. The honest limitation is sunlight interference. Strong direct sunlight overwhelms the IR receivers and causes incorrect output readings. Use indoors only. To start, mount the module facing the ground, connect each output to a digital pin, and read HIGH or LOW per channel. StemVolt provide this sensor module tested with confirmed detection across four channels.

Related Products:

• Explore the 8 Channel IR Infrared Sensor Array

Features:

• Detection range adjustable from 1mm to 60cm suits slow tabletop robots and fast competition builds
• Operating voltage from 3.3V to 5V DC connects directly to Arduino and ESP32 digital input pins
• Four independent channel outputs allow microcontroller to read line position across a wider track
• M3 mounting holes allow secure chassis attachment without drilling or modifying the sensor PCB

Technical specifications:

Applications:

• Line follower robot uses this module to detect a black tape track on a white surface below
• Maze-solving robot uses four channels to sense wall edges and decide turning direction at junctions
• 4 Channel IR Infrared Tracing Sensor Module reads road edge lines for an autonomous ground vehicle project
• infrared tracking sensor reads lane boundaries on a test track and sends correction signals to motor driver

Package includes:

• 1 x 4 Channel IR Infrared Tracing Sensor Module