Laser pointer controller using joystick and servo motor - YouTube
10pcs 3v-5v 650nm Adjustable Mini Laser Sensor Module 5mw Arduino Red Laser Spot Diode Copper Head Level Meter Ground Wire Meter - Sensors - AliExpress
KY-008 3pin 650nm Red Laser Transmitter Dot Diode Copper Head Sensor Module for Arduino AVR PIC DIY Compatible with MEGA 2560 - AliExpress