Owen had a problem. His little sister, Lindsey always would mess up the bathroom whenever she would go to use it. Owen wanted to be able to know whenever she was using it so he could prevent any issues from occurring. So we built a laser tripwire trap which uses a light sensor and a laser. Whenever the laser touching the light sensor is interrupted it calls Owen and tells him someone is in his bathroom.
This laser tripwire calls Owen's phone to tell him someone set off the tripwire whenever the light sensor is interrupted by someone.
IntermediateFull instructions provided2 hours273