Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	5V DC
Wavelength	650nm (Red)
Interface Type	TTL / PWM
Detection Range	1cm - 25cm
Material	PCB with Copper Traces
Dimensions	42mm x 12mm x 15mm
Weight	8 grams
Compatibility	Arduino, Raspberry Pi, STM32
Output Signal	Digital Switch Output (0 and 1)
Potentiometer	Adjustable Sensitivity Control

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Perfect for robotics projects

This sensor module works flawlessly with my Arduino Uno. The sensitivity adjustment potentiometer makes it very easy to calibrate for different distances. Great value for the price.

Anonymous

Mar 19, 2026

Rating: 5/5

Excellent for learning sensors

Bought this for a university project on obstacle avoidance. It is responsive and the build quality feels durable. Highly recommend for students and makers.

Anonymous

Mar 16, 2026

Rating: 5/5

Reliable and consistent

We ordered ten of these for our workshop. All units tested perfectly out of the box. The detection range is accurate within the specified limits.

Anonymous

Mar 13, 2026

Rating: 4/5

Good quality, clear instructions needed

The hardware is solid and the laser is bright. It took me a moment to figure out the pinout without a detailed diagram, but once connected, it performed exactly as expected.

Anonymous

Mar 11, 2026

Rating: 5/5

Great compatibility

Seamlessly integrated with my ESP32 development board. The digital output is clean and easy to read in code. No noise issues detected.

Anonymous

Mar 03, 2026

Rating: 4/5

Works well but gets warm

Functionality is great for line following robots. I noticed it gets slightly warm after an hour of continuous use, but it doesn't affect performance. Just ensure good ventilation.

5 FAQ

Q: Can this module be used directly with a 3.3V microcontroller?

A: Yes, the module operates at 5V, but the digital output is generally compatible with 3.3V logic levels. However, for stable operation, we recommend using a 5V power supply and checking your specific microcontroller's input tolerance.

Q: Does this come with connecting wires?

A: No, the package includes only the sensor module. You will need to purchase jumper wires separately to connect it to your development board.

Q: Is the laser class safe for indoor experiments?

A: Yes, this uses a low-power Class 2 laser diode. It is safe for general electronics experimentation, but you should avoid staring directly into the beam or pointing it at eyes.

Q: What is the maximum current consumption of this sensor?

A: The typical current consumption is around 30mA when the laser and detector are active. Please ensure your power source can provide at least 50mA to be safe.

Q: How do I adjust the detection distance?

A: There is a blue potentiometer on the back of the PCB. Use a small screwdriver to rotate it clockwise to increase sensitivity (distance) or counter-clockwise to decrease it while testing with an object.

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