shop/ optical, light & imaging sensors/ line tracking sensor 4-channel module

Measure Light and Optical Changes with a Compact Sensor

The Line Tracking Sensor 4 Channel Module is a line tracking sensor designed for light logging, optical switching, line tracking, and brightness-aware projects. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Working voltage: DC 3.3V-5V; Size: in the control panel of 42mm * 38mm * 12mm (length * width * height).

Why you’ll love it

  • Power range: DC 3.3V-5V
  • Current draw: try to choose more than 1A power supply
  • Compact size: in the control panel of 42mm * 38mm * 12mm (length * width * height)
  • Useful spec: M3 screws
  • Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
  • Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards

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What you can build

This sensor is a good fit for automatic brightness control, line followers, light meters, UV monitors, flame detection, and optical encoders.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Product Line Tracking Sensor 4 Channel Module
Output interface 6 wire interface (1234 to 4 signal output ends, + positive power, - for the negative power is ground)
Detection range 1mm to 60 CM adjustable, the closer the performance more stable, white reflects the farthest distance.
Working voltage DC 3.3V-5V
Working current try to choose more than 1A power supply
Size in the control panel of 42mm * 38mm * 12mm (length * width * height)
Mounting aperture M3 screws
Working temperature - 10oC - +50oC

Wiring & usage notes

Check the pin labels on the Line Tracking Sensor 4 Channel Module and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.

What’s in the box

1 × Line Tracking Sensor 4 Channel Module

Frequently Asked Questions

What does the Line Tracking Sensor 4 Channel Module measure? It is designed to measure line contrast or surface reflectivity.
Can I use it with Arduino, ESP32, or Raspberry Pi? Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
What affects accuracy? Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping? Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.

Build with this board

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Notes from the bench

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Ask the community

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