You Can Make This Awesome Door Alarm In Just Couple Of Minutes

Last updated on March 3rd, 2017 at 10:26 am

You don’t want to buy an expensive alarm system but still would like to have some? Well, you can make a stupid-simple door alarm for just couple of bucks and in no time. All you need is a peg, two AA batteries, couple of electric wires and a small signal buzzer electronic component which you can buy online or in a shop. Check it out.

 

First, attach batteries to a peg like this, make sure that you put the + and – sides of two batteries in opposite direction

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Attach two small screws to the top of your peg, they will be used as contacts for alarm ignition

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This is the kind of signal buzzer you need to buy

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Attach the buzzer to a peg like this

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And connect its wires to a battery and to one screw at the top of the peg exactly like this

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At the other side of the peg, connect two different battery poles (+ and -) with a wire like this

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And, by now, your door alarm should look something like this

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You need to connect also the other battery end with the screw on its top-side of the peg using a wire (the yellow one) like this:

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Now take a piece of cardboard

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Fold it like this and connect a small piece of rope to it (this will be used as a trigger for your alarm)

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Put the peg on one side of the door and connect the trigger on the other like this, and your alarm is ready to use!

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See the full video here:

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