Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Type	Infrared Reflective (TCRT5000)
Operating Voltage	3.3V - 5V DC
Output Signal	Digital Switching Output (0 and 1)
Detection Distance	1mm - 25mm (Adjustable)
Comparator Chip	LM393
PCB Dimensions	32mm x 14mm x 5mm
Mounting Hole Diameter	3mm
Indicator LEDs	Power LED and Detection Status LED
Potentiometer	Adjustable Sensitivity Control
Compatible Platforms	Arduino, Raspberry Pi, STM32, ESP8266

6 reviews

Anonymous

Mar 24, 2026

Rating: 4/5

Good value but needs careful calibration

Great little module for the price. It took me a few minutes to get the distance just right using the screwdriver on the pot, but once set, it reliably detects the black line on white paper. Just ensure your voltage supply is stable.

Anonymous

Mar 21, 2026

Rating: 5/5

Reliable digital output

The LM393 comparator provides a clean digital signal which makes interfacing with microcontrollers very simple. No noisy analog readings to filter out. Highly recommended for obstacle avoidance applications too.

Anonymous

Mar 17, 2026

Rating: 3/5

Works well in controlled light

The sensor functions perfectly indoors under artificial light. However, I noticed some interference when testing it near a window with direct sunlight. For indoor projects, it is flawless, but keep ambient light in mind.

Anonymous

Mar 14, 2026

Rating: 5/5

Compact and sturdy

The PCB quality is surprisingly good for the cost. The soldering points are clear, and the mounting holes align perfectly with standard chassis kits. I've ordered five more for my next automation build.

Anonymous

Mar 04, 2026

Rating: 5/5

Easy to use for beginners

Bought this for my son's science fair project. The wiring is straightforward (VCC, GND, OUT), and there are plenty of tutorials online. It survived several crashes during testing without any issues.

Anonymous

Mar 03, 2026

Rating: 5/5

Perfect for my line follower robot

This sensor works exactly as described. The sensitivity adjustment via the potentiometer makes it very easy to calibrate for different surface colors. I used three of these for a line-following robot project, and the response time is excellent.

5 FAQ

Q: Can this sensor detect objects other than lines?

A: Yes, while optimized for line tracking, it functions as a general proximity sensor. It can detect obstacles or count rotations if the object reflects infrared light sufficiently within the 1-25mm range.

Q: What happens if I connect this to 12V?

A: Please do not connect it to 12V. The operating voltage is strictly 3.3V to 5V. Connecting 12V will likely damage the comparator chip and the IR LED permanently.

Q: Does this come with jumper wires?

A: No, the package includes only the sensor module. Jumper wires and mounting hardware are sold separately to allow you to choose the length and type best suited for your specific project.

Q: Is the output analog or digital?

A: This specific module provides a digital switching output (HIGH/LOW). If you require analog data regarding reflectivity intensity, you would need a different variant of the TCRT5000 breakout board.

Q: How do I adjust the detection distance?

A: Use a small Phillips head screwdriver to turn the blue potentiometer on the board. Turn it clockwise or counter-clockwise while testing against your target surface until the status LED triggers at your desired distance.

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