How to make a DIY Door Alarm - Theft alert Alarm

In this video, I made an Anti - Theft Alarm by using very simple and easily available at the house.

Things Required -

• Wooden Plank

• Steel Bowl

• Nuts & Long Bolt

• D.C. Motor

• Rubber bands

• Clothespin

• Switch

• Battery

• Thread

I started by using a plywood board. Then I used a steel bowl to use as a bell and using a nut as a striker and tied a rubber band to a dc motor which will spin and strike to the bowl producing bell sound.

Now, as a ring bell mechanism is ready. You can also use a switch in the mechanism as well. Now to make a jump switch with the help of a clothespin. Then, I added a jumper wire as well to the clothespin. The mechanism works in such a way that when you pull the jump wire trigger, it will complete the circuit and ring the bell.