How To Make A Special Door Alarm? This Will Keep All The Intruders At Bay…

This video i’ll show you how to make a very simple door alarm. Hope you like it.
Preparation: 2AA batteries + holder, a 3V buzzer, a wooden clip, electric wire, 3-6V dc motor + gearbox. All you need to do is spend some time on your weekend to make something as cool as this.