The Ultimate Backpack Alarm System #HackPack

by nickweinberg

Published on August 20, 2015

We all carry our valuables in our backpacks. Set up an alarm system to prevent someone from taking your stuff!

Duration: 30 minutes

Credits: Kelsey Moffitt

How To Make It

STEP 1 : Create your circuit

Connect the battery/cable to the power bit. Then connect it to a wire, which attaches to three bargraphs.

STEP 2 : Mounting

Mount the power, light sensor and buzzer and buzzer to a mounting board.

STEP 3 : Connecting it to the front of the backpack

Using the wire, connect the buzzer to the bargraphs, which will sit on the front of the bag. Attach the bargraph to shoes and using glue dots, stick them to the bag.

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