With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
In this instructable I will show you how to make a simple tripwire alarm. If you have any questions please comment. Here is a video of the first ...
You will need: -an alarm/buzzer -wire -tinners tape -batteries and holder -clothes pin -duct tape -thread -cardboard or a thin sturdy material -switch -screwdriver
Cut small pieces of the tinners tape and cover the end of both sides of the clothes pin. Then put the two wires on the outside of the ...
Attatch the negative wire to the alarm. Then attatch the positive wire to the switch.
Attatch one of the wires from the clothes pin to the switch and the other to the alarm.
Mount the clothes pin just under knee high on the door frame. You can leave the alarm, switch, and batteries on the floor.
Cut out a small piece of cardboard with a small hole near one end. Tie thread to the cardboard, DO NOT CUT THE THREAD
Open the clothes pin and clip the cardboard into the clothespin to separate the two sides and break the circuit. Measure how long the thread has to be ...
Hack Your Snap Circuits With Frickin' Laser Beams! Build a Laser Tripwire and Alarmby KRA5H
Sonic Tripwire Alarmby MadScienceHacks
DIY Alarm with Phoneby stephhicks
Remote Tripwire Alarmby DIY Hacks and How Tos
Laser Tripwire Alarmby DIY Hacks and How Tos
Join 2 million + to receive instant inspiration in your inbox.
Download our apps!
© 2015 Autodesk, Inc.
Enter the email associated with your account and we will send you your username and a temporary password.
Not a member? Sign Up »
Already a member? Login »
That's a pro feature!
Want to go pro?
First step is to sign up.
By clicking "Sign me up!" you are indicating that you have read and agree to the Terms of service.
Already a member?" Login »