Laser Trip Wire Hides What You're (Not) Working On

Arduino - Laser Tripwire Alarm System : 5 Steps (with Pictures

activates when someone crosses its line of sight. Catch your players by surprise and activate something unusual when they pass a certain point!,

Optical Tripwire sensor

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2019, Hackaday

Time Of Flight Sensor

Daytripper: Hide-My-Windows Laser Tripwire from dekuNukem on Tindie

Spynet Laser Trip Wire : : Outlet

Clean Up Your Messy Cables With These 9 Simple Tips

Build Laser Security System using LDR Sensor and BC547

Clean Up Your Messy Cables With These 9 Simple Tips

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How to Build an EMP Generator at Home: A Step-by-Step Guide