How to Make a Simple Door Alarm. DIY Door Alarm is a electronics project. In this video I will show you how to make a door alarm. This is a door alarm system and a homemade doorbell. Its work as a door alarm sensor. So watch this video and learn how to make alarm with door alarm sound which is like as laser security alarm. So you don’t need to know how to make doorbell.
It is a automatic door alarm with Door Alarm Sensor. But it dose’nt detect motion so its not a motion alarm. You can make this for your COLLEGE PROJECT. We can call this Theft alert Alarm or Security Alarm.
Material you need to make door alarm
1. battery – 9 volt
2. Switch
3. Buzzer
4. Cloths clip
5. Screw
6. Some Wire
source
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