
The KY-008 Laser Module is a compact red laser emitter module designed to produce a focused 650nm visible red laser beam for alignment, positioning, detection, and educational applications. The module integrates a laser diode with a current-limiting resistor, allowing it to operate directly from a 5V DC power supply.
With its simple three-pin interface, the KY-008 can be easily connected to Arduino, ESP32, STM32, Raspberry Pi Pico, and other microcontroller platforms. The laser can be switched on and off using a digital output pin, making it ideal for obstacle detection, laser tripwire systems, optical communication experiments, robotics, positioning systems, and STEM education.
Its compact size, low power consumption, and reliable operation make it a popular choice for DIY electronics, automation, and embedded projects.