KY-008 Laser Head Sensor Module 650nm Red Laser 5V for Arduino Raspberry Pi Smart Car Light Seeking Obstacle Avoidance

KY-008 Laser Head Sensor Module Product Overview

The KY-008 Laser Head Sensor Module is a simple laser emitter module designed for Arduino, Raspberry Pi, and other microcontroller platforms. It integrates a 650nm red laser diode with a current-limiting resistor, ready to be powered directly by a 5V DC supply. The module features a 3-pin design (S/VCC, center, GND) compatible with standard servo motor wiring. With compact dimensions of 15×24mm and a weight of only 2.2g, it includes mounting holes for easy installation. By simply controlling the high/low level signal, the laser can be turned on and off. It is widely used in laser alarm systems, smart car light-seeking and obstacle avoidance, laser communication, security monitoring, and maker education.

KY-008 Laser Head Sensor Module Key Features

650nm Red Laser: Emits a 650nm wavelength red visible laser beam with concentrated light, strong directivity, and good penetration.

5V Operating Voltage: Supports 3.0V to 5V wide voltage input, with approximately 5mW output power at 5V. Operating current is less than 40mA.

Compact and Lightweight: PCB dimensions of only 15×24mm, weight of 2.2g, with 3mm diameter mounting holes.

Simple 3-Pin Interface: Features S (Signal) / Center (VCC) / GND (Ground) three-pin design, compatible with Arduino standard interfaces.

Built-in Current-Limiting Resistor: Module includes an integrated resistor for direct 5V operation without external components.

High-Quality Laser Diode: Uses a premium 5mW laser diode with a durable brass laser head for stable beam output.

Wide Operating Temperature: Supports -36℃ to +65℃ for various environments.

Sufficient Cable Length: Signal wire approximately 135mm long for flexible wiring.

KY-008 Laser Head Sensor Module Applications

The KY-008 Laser Head Sensor Module is widely used in:

Laser Alarm & Security Systems: Paired with photosensitive sensors or laser receiver modules to create laser tripwire alarms.

Smart Car Light-Seeking & Obstacle Avoidance: Acts as a laser emitter for robots or smart cars, paired with receiver modules for light tracking or obstacle detection.

Laser Communication & Data Transmission: Demonstrates optical communication using laser beam on/off modulation.

Laser Ranging & Positioning: Combined with cameras or photosensitive arrays for simple laser ranging.

Maker Education & STEM Teaching: Used in laser control experiments for Arduino and Raspberry Pi education.

Interactive Art & Laser Shows: Used in laser projection, laser harps, and other creative interactive projects.

Industrial Inspection & Alignment: Used for laser alignment, positioning indication in equipment.

Electronics Competitions & DIY Projects: Widely used in various electronics design competitions and DIY making.

Advantages and Highlights

Plug-and-Play, No Complex Driver Required: Built-in current-limiting resistor allows direct 5V operation without additional driver circuits.

Compatible with Mainstream Development Platforms: Fully compatible with Arduino UNO R3, ESP32, Raspberry Pi, STM32 and other mainstream boards.

Concentrated Beam with Strong Directivity: The 650nm red laser beam is highly concentrated with strong directivity, offering effective transmission distance far exceeding ordinary LEDs.

Compact, Lightweight, and Easy to Integrate: 15×24mm ultra-compact size, 2.2g ultra-light weight, with mounting holes for easy installation.

Low Power Consumption: Operating current below 40mA, can be directly driven by MCU I/O pins, suitable for battery-powered projects.

High Cost-Effectiveness: Compared to professional laser modules, the KY-008 provides reliable laser emission at a very low cost.

Rich Open-Source Resources: Numerous tutorials, code examples, and project cases available online for the KY-008.

Wide Temperature Operation: -36℃ to +65℃ operating temperature range.

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FAQ

1. What is the KY-008 Laser Sensor Module?
It is a simple laser transmitter module based on a 650nm red laser diode. It allows a microcontroller (like Arduino) to control a focused laser beam via a GPIO pin.

2. What are the key specifications of the module?

Operating Voltage: 5V DC

Operating Current: Approx. 30-40mA

Laser Power: 5mW

Wavelength: 650nm (red light)

Module Size: 15mm x 24mm

Weight: 2.2g

3. What is the pinout of the module?
It typically uses a standard 3-pin interface:

S (Signal): Control pin. HIGH turns the laser ON, LOW turns it OFF.

+ (VCC): Positive power supply, connect to 5V.

- (GND): Ground, connect to power supply ground.

4. What are the typical applications?

Laser Tripwire Alarm: Triggers an alarm when the beam is broken, using an LDR.

Wireless Data Transfer: Transmits data by rapidly switching the laser on and off.

Distance Measurement: Estimates distance based on light intensity changes.

Laser Pointer: Serves as a pointing or aiming light for projects.

• Industrial Use: Used in devices like "electronic pointers".