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Home / Computer Hardware, Monitors & Peripherals / 8-Channel Line Tracking Sensor Module - Infrared Path Finding and Obstacle Avoidance for Smart Robot Cars

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Channel Count 8 Channels
Operating Voltage 3.3V - 5V DC
Output Signal Digital TTL Output
Detection Type Infrared Reflective
PCB Dimensions 95mm x 23mm
Mounting Hole Size 3mm Diameter
Comparator IC LM393
LED Indicators Power and 8 Signal LEDs
Detection Range 1mm - 25mm (Adjustable)
Interface Type 9-Pin Header

5 reviews

A

Anonymous

Apr 05, 2026

Rating: 5/5

Perfect for my Arduino Robot

This sensor module works flawlessly with my Arduino Uno project. The 8 channels provide smooth line tracking without jerky movements. Calibration was straightforward using the onboard potentiometers.

A

Anonymous

Apr 04, 2026

Rating: 4/5

Good sensitivity

Works well but requires some tuning depending on ambient light. Once calibrated, it follows the line accurately. Good value for the price.

A

Anonymous

Mar 22, 2026

Rating: 3/5

Decent but tricky

The sensor works, but the instructions could be better. I had to watch a tutorial to understand how to adjust the sensitivity properly for my specific track surface.

A

Anonymous

Feb 12, 2026

Rating: 5/5

Fast line tracking

My robot car moves much faster now compared to using a 3-channel sensor. The extra channels help anticipate turns better. Fast shipping too!

A

Anonymous

Feb 11, 2026

Rating: 5/5

Excellent build quality

The PCB is sturdy and the components are soldered well. I appreciate the clear labeling for each channel pin. Highly recommended for robotics hobbyists.

5 FAQ

Q: Are jumper wires included in the package?

A: No, the package includes only the sensor module. Jumper wires need to be purchased separately.

Q: Can I use this sensor outdoors?

A: Outdoor use is not recommended as direct sunlight contains infrared light which may interfere with the sensor's accuracy.

Q: Is this compatible with 3.3V microcontrollers like ESP32?

A: Yes, the operating voltage range is 3.3V to 5V DC, so it is fully compatible with ESP32 and similar boards.

Q: Does it work on a black line with a white surface?

A: Yes, it is designed primarily for detecting black lines on a white surface, but sensitivity can be adjusted for reverse scenarios.

Q: Does this come with a library for Arduino?

A: No specific library is required. It outputs digital signals that can be read using standard digitalRead functions in Arduino IDE.

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