In one of my instructs i made a box into a kind of secret box. In this instruct i will add an alarm system to it. you will need these materials.
1. Battery comp with batteries
2. wires
3. buzzer or motor sound device

Step 1:

first add wires to the battery compartment.

About This Instructable


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Bio: I do a little of everything. I like electronics. Chemistry physics and robotics.
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