Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	TCRT5000
Sensor Type	Infrared Photoelectric Reflective
Operating Voltage	3.3V - 5V DC
Detection Distance	1mm - 8mm (Adjustable)
Output Signal	Digital Switching Output (0 and 1)
Comparator Chip	LM393
PCB Dimensions	32mm x 14mm x 5mm
Mounting Hole Diameter	3mm
Indicator LED	Power and Status LEDs included
Application	Line Tracking, Obstacle Avoidance, Counting

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect for my Arduino line follower

These sensors work flawlessly with my Arduino Uno project. The sensitivity adjustment potentiometer makes it very easy to calibrate for different surface colors. Highly recommended for beginners.

Anonymous

Mar 27, 2026

Rating: 4/5

Good value but needs careful calibration

The module works well once you spend time tuning the potentiometer. It struggled a bit under direct sunlight, but indoors it tracks lines perfectly. Great price for a pack of these.

Anonymous

Mar 15, 2026

Rating: 5/5

Essential for robotics kits

Bought these for a university project. They are robust and the output is clean. The LM393 comparator ensures stable switching between black and white surfaces.

Anonymous

Mar 06, 2026

Rating: 5/5

Compact and effective

Small form factor fits easily on tight chassis designs. The IR emission is strong enough to detect lines even with a small gap. Very satisfied with the purchase.

Anonymous

Mar 06, 2026

Rating: 5/5

Kids loved building the car

Easy to wire up with standard jumper cables. My kids successfully built a line-tracking car using these modules. The instructions online are plentiful which helped us get started quickly.

Anonymous

Mar 02, 2026

Rating: 4/5

Reliable digital output

The digital output is very responsive. I wish it had an analog output option as well for more granular data, but for simple line following, this is exactly what is needed.

5 FAQ

Q: Does this module come with mounting screws?

A: No, the module does not include mounting screws. It features standard 3mm holes, so you can use M3 screws and standoffs which are commonly available in electronics kits.

Q: Can this sensor work directly with a Raspberry Pi GPIO?

A: Yes, it can. Since the module operates at 3.3V to 5V and provides a digital output, it is compatible with Raspberry Pi GPIO pins. Just ensure you connect the VCC to the 3.3V or 5V pin accordingly.

Q: What is the maximum speed the robot can go while still tracking the line?

A: The sensor itself has a very fast response time. The limiting factor is usually your microcontroller's code efficiency and the motor driver's capability. Typically, hobby robots can track lines at speeds up to 0.5 meters per second reliably.

Q: Can this detect obstacles or only lines?

A: It can do both. While primarily designed for line tracking by detecting contrast, it can also function as a proximity sensor to detect obstacles within its 1-8mm range by reflecting IR light off the object.

Q: How do I adjust the detection range?

A: There is a blue potentiometer on the back of the PCB. Turn it clockwise to increase sensitivity (detect from further away) and counter-clockwise to decrease it. Use a small screwdriver to adjust while testing against your surface.

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