Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	5V DC
Interface Type	Digital Output (DO)
Compatible Platforms	Arduino, Raspberry Pi, micro:bit
Laser Wavelength	650nm (Red)
Detection Range	Adjustable via Potentiometer
Indicator LED	Yes, for output status
Mounting Hole Diameter	3.1mm
PCB Dimensions	32mm x 14mm
Connector Type	3-Pin Header (VCC, GND, DO)
Application Scope	DIY Robotics, Obstacle Avoidance, Line Tracking

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Solid build quality

The PCB looks professional and the components are soldered neatly. I've been running this continuously for a week on a prototype without any issues. Definitely buying more for my next batch of sensors.

Anonymous

Mar 31, 2026

Rating: 5/5

Easy to integrate

As a beginner, I was worried about wiring this up, but the labels on the PCB are very clear. VCC, GND, and DO made it simple. The tutorial code found online worked immediately. Great product for learning.

Anonymous

Mar 18, 2026

Rating: 5/5

Perfect for my Arduino robot

This sensor module worked flawlessly right out of the box. The digital output is clean and easy to read with standard Arduino libraries. I used it for an obstacle avoidance project, and the detection range is easily adjustable with the onboard potentiometer.

Anonymous

Mar 17, 2026

Rating: 5/5

Reliable and compact

I've tested several laser sensors, and this Keyes module offers excellent consistency. The form factor is small enough to fit on tight breadboards. Highly recommended for anyone starting with Raspberry Pi GPIO projects.

Anonymous

Mar 14, 2026

Rating: 4/5

Good sensitivity adjustment

The potentiometer allows for fine-tuning the detection distance, which is crucial for different lighting conditions. Works well indoors. Just ensure you don't exceed 5V input or you might damage the module.

Anonymous

Mar 08, 2026

Rating: 4/5

Great value for students

Bought a pack for my son's science fair project. It connects easily to the micro:bit using alligator clips. The only reason for 4 stars instead of 5 is that the included pins were not pre-soldered, but that's expected at this price point.

5 FAQ

Q: Do I need any external resistors to connect this to an Arduino?

A: No external resistors are needed. The module has built-in circuitry. You simply connect VCC to 5V, GND to Ground, and the DO pin to any digital input pin on your Arduino.

Q: What is the maximum detection range?

A: The range depends on the surface reflectivity and ambient light, but typically it can detect objects between 2cm to 20cm away. You can adjust this using the blue potentiometer on the board.

Q: Can I power this directly from a 3.3V Raspberry Pi pin?

A: While the logic output is generally compatible, the module is designed for 5V operation. For best stability and laser brightness, we recommend powering the VCC pin from the 5V rail on the Raspberry Pi.

Q: Is the laser safe for eyes?

A: The module uses a low-power Class 2 laser. While generally safe for brief accidental exposure, you should never stare directly into the beam or point it at anyone's eyes intentionally.

Q: Does this module output analog or digital signals?

A: This specific model outputs a digital signal (HIGH/LOW) based on whether the laser beam is interrupted or reflected. It does not provide an analog distance measurement.

Explore your interests

STC32G12K128 STC8H8K64U Microcontroller Small System Core Board Development Board Emulator

$16.50

Youxin Electronics_STM32H743IIT6 Core Board System Board Learning Board STM32 Development Board

$118.00

Arduino DUE Development Board 32-bit ARM Controller A000062 Italian Official Original Import with Cable

$299.00

Ultrasonic Sensor HC-SR04 Ultrasonic Distance Measuring Module Bracket US015-025-026-100

$3.16

Serial SHT20 Chip Temperature and Humidity Sensor Test, SHT30 Chip Measurement and Monitoring Module by Viter Intelligence

$11.00

High-Speed Yabo Smart Raspberry Pi 4B Motherboard Development Board Accessories RaspberryPi 2G/4G/8G RAM Py

$494.30

Magnetic Circular Counting Chips, Two-Sided Flip Coins for Elementary Math, Kindergarten Early Education, Ten-Frame Matrix, Addition/Subtraction within 10 & 20, Teaching Tools

$11.90

3-Wire/4-Wire Flame Sensor Module, Fire Source Detection with IR Receiver, Flame Detection and Alarm

$1.08

SANSI White Label Class A Glass Graduated Cylinder C18 Micro-Precision Demulsification Cylinder with Scale Measurement Includes Certificate Ground Joint Stopper Hexagonal Bottom Borosilicate Glass Lab Equipment

$3.68

EV2400 Battery Unlock Fuel Gauge Programmer MSP430 HPA500 Evaluation Module Interface Board SMBus

$323.00

Cube Three-View Teaching Aid with Grid - 3D Geometry Observation Tool for Grades 4-5 Math (2cm Cubic Blocks Set)

$15.10

OrangePi Orange Pi Zero3 Zero 3 Development Board Allwinner H618 Orange Pi

$228.00

Digital 38KHz Infrared Receiver Transmitter Head Sensor Module Electronic Building Blocks Robot Infrared Communication Remote Control

$2.29

12V Stable Version Light-Control Switch No-Light Sensing with Extension Cable Photoresistor Plus Relay Module

$49.20

STM32 Smart Car 51 Microcontroller Arduino Obstacle Avoidance Chassis Kit Mecanum Wheel Robot Car

$40.80

Tech Small Production Small Invention DIY Piano Electronic Keyboard Real Playable Science Small Handmade DIY Materials

$33.00

HX711 Pressure Sensor Module Electronic Scale Bracket Weighing DIY Scale Pan Tray Set 5/10/40kg200

$3.28

Transparent 3D Geometric Model Perspective Decomposition Graphic Teaching Aid, Complete Set for Elementary Grades 1-6 Math

$6.80

Thin Film Pressure Sensor Display, USB Rechargeable Flexible Resistive Pressure Digital Display Module, Wide Range Wireless

$20.00

E18-D80NK Infrared Photoelectric Switch Diffuse Reflection Obstacle Avoidance Sensor Module 3-80CM

$12.60

LAN8720 Module Network Module Ethernet Transceiver RMII Interface Development Board Xinwei Electronics

$7.85

STC15W408AS Core Board Minimum System Board 51 Microcontroller Development Board TTSOP20 Learning Board

$18.47

New Version MEGA2560 R3 Development Board, Improved MEGA2560 R3 with Sensor Expansion Board

$13.68

Gradient Visual Illusion Kit: Electric Rotating Assembly Toy for Maker DIY, Paintable Handmade Model

$8.72

51/AVR Microcontroller Core Development Board STC89C52RC/51MCU Experiment Board/ATMEGA32 Learning Board

$37.90

[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set

$15.00

5A Range Current Transformer Module Voltage Sensor Single-Phase AC Active Output Current Transmitter

$5.06

Foldable Clothes Drying Rack Floor Standing Home Balcony Bedroom Hanging Clothes Quilt Drying Artifact Outdoor Cooling Rod Indoor Drying Rack

$47.10

Hi-Link 24G Millimeter Wave Radar Human Presence Sensing Module Smart Sensor Non-Contact LD2410C

$9.90

RV1103 Miniature Linux Development Board: RISC-V Vision and AI with Ethernet Port

$53.10

For Arduino Development Board R3 Mainboard Microcontroller Module Kit Programming Learning Board Sensor Suite

$78.00

Xuefen Geometry Stamping and Tracing Set for Grades 1-2, 3D and 2D Ink Pads, Math Learning Tools, Cube and Cuboid Models

$4.51

Rubber Tire Toy 4WD Smart Car Wheels Car Model Robot Accessories (Suitable for 2mm Axle)

$0.50

AHT10 High-Precision Digital Temperature and Humidity Sensor Measurement Module I2C Communication Replaces sht20

$7.88

Digital 38KHz Infrared Receiver/Transmitter Head Sensor Module for Electronic Building Blocks Robots, Infrared Communication Remote Control

$2.80

51 MCU Minimum System STC89C52 DIP40 Through-Hole Smart Car Main Control Board Learning Experiment

$19.80

Outdoor Adventure Kids' Insect Observation Box with Magnifying Glass, Boys & Girls Toy for Exploration, Butterfly Catching and Fish Scooping Tools

$7.80

MPU-9255 9-Axis Attitude 3-Axis Electronic Compass Accelerometer Gyroscope Magnetic Field Sensor Module

$13.42

Freeze-Dried Chicken Treats for Dogs: Nutritious Weight-Gain Breast Meat Chunks for Puppies – Teeth Cleaning, Grain Mixing, Universal Use

$3.90

Ningbo Keli SQB Cantilever Beam Weighing Module Sensor 100kg 500kg 1t 2t 3 Ton Small Floor Scale Inductor

$48.00