MAKE a BURGLAR ALARM FROM SCRATCH

by E-R-IC in Workshop > Science

9932 Views, 11 Favorites, 0 Comments

MAKE a BURGLAR ALARM FROM SCRATCH

alarm.jpg
make a not so simple alarm from scratch. not for people withought electrical epirience
not a practicle alarm. more like a "STAY OUT OF MY ROOM" alarm.

LETS START

alarm.jpg
YOU WILL NEED:
a bunch of stuff
Follow the diagram here. ignore the little numbers:

alarm.jpg
take the weird curvy part on the diagram from the previouse diagram, wich is a wire and run from thirteen, around your doornob, and bak to fourteen.turn it on. when someone opens the door, the wire between thirteen and fourteen will fall off and the alarm will go off. if your little brother or sister is stupid, they won't put the wire back and run away. voila.