A-Simple-Trip-Wire.pdf

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A Simple Trip Wire
A Simple Trip Wire
Written By: Lewis
TOOLS:
Scissors (1)
Soldering/desoldering tools (1)
Wire cutter/stripper (1)
PARTS:
AA Battery Holder (1)
AA Battery (1)
Beeper/Buzzer (1)
Cable (1)
Copper pins (3)
Photo frame hook (1)
SUMMARY
With a few easy steps build a trip wire!
© Make Projects
www.makeprojects.com
Page 1 of 4
A Simple Trip Wire
Step 1 — A Simple Trip Wire
Solder a wire to one terminal of a
beeper or buzzer.
Step 2
Put two pins or nails into a board.
Put in a third pin with a photo hook
pivoting on it. Position the pin so
that when the hook swings it will
contact one of the other two pins.
© Make Projects
www.makeprojects.com
Page 2 of 4
A Simple Trip Wire
Step 3
Solder the wire from the
beeper/buzzer to the pin that the
hook will touch.
Solder a wire from a battery pack
to the hook.
Step 4
Complete the circuit by soldering a
wire that connects the remaining
terminals of the battery pack and
the beeper/buzzer.
© Make Projects
www.makeprojects.com
Page 3 of 4
A Simple Trip Wire
Step 5
Tie a string to the hook. Mount the
board on one side of a doorway or
walkway and stretch the string
across to the other side.
Now wait for someone to walk into
your trap!
This document was last generated on 2012-11-03 02:55:15 AM.
© Make Projects
www.makeprojects.com
Page 4 of 4

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