How to Make a Simple Door Alarm

You can create a simple door alarm in just a few minutes. You need few things that are available in your home.

You need these things

  1. A clip
  2. Glue gun or any glue 
  3. Two pencil batteries
  4. A drilling machine to make whole in the clip 
  5. Two nuts and a screwdriver 
  6. A speaker
  7. Soldering Iron

Now watch the video to follow the steps.

Santosh Devnath
PHP Developer