BONATECH 16 in 1 Sensor Modules Kit Project Super Starter Kit for Arduino UNO R3 Mega2560 Mega328. : Amazon.in: Computers & Accessories
How to make a laser security system with Arduino -
GitHub - ez77/LaserProjector: A simple Laser Projector made with Arduino that can project user implemented patterns via push-buttons. https://ez77.github.io/LaserProjector/
How To MacGyver A Laser Tripwire Using Arduino
An Arduino-Powered Laser Engraver That You Can Build | Make: