SHILLEHTEK 6mm 650nm 5mW Red Laser Diode Module for Arduino Pi

The ShillehTek 6mm 650nm 5mW Red Laser Diode Module is a compact red laser emitter for Arduino and Raspberry Pi projects that need a visible, focused beam for alignment, tripwire style detection, pointing, and optics demos. It is commonly used with photodiodes or LDR sensors to build simple beam-break alarms, positioning guides, and basic robotics alignment tools. With a standard module form factor, it is easy to mount in enclosures or brackets and control from a microcontroller using a GPIO pin and proper current limiting.