Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Brand	Huaner
Channel Count	4 Channels
Sensor Type	Infrared Reflective
Operating Voltage	3.3V - 5V DC
Detection Method	Line Tracking & Obstacle Avoidance
Output Signal	Digital Switching (0 and 1)
PCB Dimensions	48mm x 36mm
Potentiometer	Adjustable Sensitivity Control
Indicator LED	Power and Status Indicators
Compatibility	Arduino, Raspberry Pi, STM32

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Compact and easy to integrate

Love the compact size of this Huaner module. It fit perfectly on my custom chassis. The pinout is standard, making wiring incredibly simple. The LEDs clearly show the status of each channel.

Anonymous

Mar 23, 2026

Rating: 4/5

Great starter sensor

As someone new to robotics, this was easy to understand and connect. The documentation could be slightly better, but there are plenty of tutorials online for this type of sensor. Works as advertised.

Anonymous

Mar 19, 2026

Rating: 5/5

Excellent for school projects

Bought this for a university robotics competition. The four-way recognition helps the car make smooth turns rather than just stopping. Very reliable performance throughout the event.

Anonymous

Mar 10, 2026

Rating: 3/5

Works well in normal light

The sensor performs great indoors under artificial light. However, I noticed some interference when testing it near a window with direct sunlight. You need to shield it or adjust sensitivity carefully for outdoor use.

Anonymous

Mar 10, 2026

Rating: 5/5

Perfect for my line follower robot

This 4-channel sensor works flawlessly with my Arduino project. The sensitivity adjustment is very precise, allowing it to track black tape on white surfaces without any issues. Highly recommended for beginners.

Anonymous

Mar 09, 2026

Rating: 4/5

Good value but needs calibration

The module is solid and well-built. It took a little time to calibrate the potentiometers for my specific lighting conditions, but once set, it tracks lines smoothly. Great price for a 4-way sensor.

5 FAQ

Q: Does the package include mounting screws?

A: The package includes the sensor module and header pins. Mounting screws are not included, but the board has standard 3mm holes for easy integration with most chassis kits.

Q: How do I adjust the sensitivity if the car keeps drifting off the line?

A: Use a small screwdriver to turn the blue potentiometer on the module. Turn it slowly while observing the indicator LED until it switches state exactly when crossing the line edge.

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

A: Absolutely. The module operates within a 3.3V to 5V range, making it fully compatible with ESP32, ESP8266, and standard 5V Arduino boards.

Q: What is the maximum detection distance for obstacles?

A: When used for obstacle avoidance, the effective detection range is typically between 1cm and 2.5cm, depending on the reflectivity of the object and ambient light.

Q: Can this sensor detect white lines on a black surface?

A: Yes, by adjusting the potentiometer, you can invert the logic to detect white lines on a dark background, though it is primarily optimized for black lines on white surfaces.

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