Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Channel Count | 4 Channels |
| Sensor Type | Infrared Reflective |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital TTL (High/Low) |
| Detection Distance | 1mm - 25mm (Adjustable) |
| Potentiometer | Yes, for Sensitivity Adjustment |
| Indicator LED | Power and Signal Status LEDs |
| PCB Dimensions | 60mm x 28mm x 14mm |
| Mounting Holes | 4 x 3mm Diameter |
| Compatible Platforms | Arduino, Raspberry Pi, STM32, ESP32 |
Anonymous
Mar 28, 2026
Rating: 4/5
Good value but needs careful calibration
The sensor is responsive and the build quality is decent for the price. It took some time to get the detection range just right for my specific floor surface, but once calibrated, it tracks lines smoothly.
Anonymous
Mar 27, 2026
Rating: 5/5
Great for university projects
Used this for our final year smart car project. The four channels provide enough resolution for smooth turning algorithms. The obstacle avoidance feature is a nice bonus addition.
Anonymous
Mar 21, 2026
Rating: 4/5
Solid performance under indoor lighting
Works perfectly indoors. I noticed slight interference under direct sunlight, which is expected for IR sensors. For indoor competitions or hobby use, it is excellent.
Anonymous
Mar 20, 2026
Rating: 5/5
Easy to integrate
Wiring was straightforward. The digital output makes it very easy to read with microcontrollers without needing extra ADC conversion. My kids' robot car runs great with this.
Anonymous
Mar 13, 2026
Rating: 5/5
Perfect for my line follower robot
This 4-channel module works flawlessly with my Arduino Uno. The sensitivity adjustment via the potentiometer makes it easy to calibrate for different track colors. Highly recommended for beginners.
Anonymous
Mar 02, 2026
Rating: 5/5
Exceeded expectations
I was worried about the accuracy, but the line tracking is very precise. The ability to detect obstacles adds an extra layer of safety for autonomous navigation experiments.
Q: Can this module work directly with a 5V Arduino without a logic level converter?
A: Yes, this module operates on 3.3V to 5V DC and outputs TTL signals compatible with 5V microcontrollers like the Arduino Uno directly.
Q: What is the maximum speed a robot can travel while still detecting the line accurately?
A: The detection speed depends on your code and processor speed, but generally, robots traveling up to 1-2 meters per second can track lines effectively with proper tuning.
Q: Does the package include mounting screws?
A: No, the package includes the sensor module only. Standard M3 screws and standoffs are required for mounting and are sold separately.
Q: Can I use this sensor on a black track with white lines?
A: This sensor is optimized for black lines on a white background. For white lines on a black background, you would need to invert the logic in your code, though performance may vary depending on surface reflectivity.
Q: How do I adjust the sensitivity if the sensor is not detecting the line?
A: Use the small blue potentiometer on the board. Turn it clockwise or counter-clockwise while observing the signal LED until it switches state when passing over the line.
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