altNOAA on Twitter: "@brabbit99 @TheMermaidsSong Need an IR laser like this one, a sensor that can detect it, and an Arduino Uno. Then mount everything up and use the Arduino to measure
Diymall Vl53l0x Laser Sensor For Arduino Iof Infrared Ir Distance Module Serial Pwm Iic - Buy Vl53l0x Laser Sensor,Iof Infrared Ir Distance Module Serial Pwm Iic Product on Alibaba.com
Add an IR Break-Beam Sensor to an Arduino Project
How to use Laser Transmitter and Laser sensor for Arduino - YouTube
Lesson 72: Obstacle detection using Laser Transmitter and receiver | Arduino Step By Step Course - YouTube
A laser barrier with Arduino – Meccanismo Complesso
Arduino KY-008 Laser sensor module - Sensors
How many IR receivers can I wire in parallel? - #76 by Grumpy_Mike - Project Guidance - Arduino Forum