Description
The KY-008 Laser Transmitter Module is a compact red laser diode module that adds visible laser output to your Arduino, Raspberry Pi, or microcontroller projects.
It emits a focused 650nm red laser beam, making it ideal for applications such as object detection, alignment systems, laser tripwires, and basic optical communication.
This module is ideally suited to adding visible laser functionality to your projects and operates with a simple HIGH/LOW digital signal for on/off control.
Its small size and standard 3-pin interface make it perfect for breadboarding or embedding into compact electronics builds.
Microcontrollers like Arduino can easily control the module via a digital output pin, with no complex libraries required—just power and a logic signal.
- Module: KY-008
- Function: Laser Transmitter (Red Laser Diode)
- Output Type: Digital (Laser ON/OFF with HIGH/LOW)
- Operating Voltage: 3.3V – 5V (compatible with Arduino & Pi)
- Wavelength: 650nm (visible red light)
- 3-Pin Interface: VCC, GND, Signal (S)
- Compact PCB for easy breadboard integration
- Module Size: 18mm x 15mm
- Laser Range: Up to several metres (indoor use)
Key Features:
- Module: KY-008
- Function: Visible Red Laser Output (650nm)
- Voltage: 3.3V – 5V
- Output Control: Digital HIGH = Laser ON
- Interface: VCC, GND, Signal
- Low power consumption
- Breadboard and embedded project friendly
- Compatible with Arduino, Raspberry Pi, and more
What’s Included:
- 1x KY-008 Red Laser Transmitter Module
Great For:
- Laser Tripwires & Intruder Detection
- Line Alignment & Targeting Projects
- Optical Communication Prototypes
- Educational Electronics & STEM Kits
- Visual Debugging or Signalling in Robotics
Usage Tips:
- Connect signal pin to digital output on microcontroller
- Send HIGH to turn laser ON, LOW to turn it OFF
- Use caution—avoid direct eye exposure to the laser beam
- No additional library needed—controlled via digitalWrite()
- Works well with light sensors or photodiodes for detection setups
