Door Alarm says "Welcome" | The door is opened Speaker Speak 

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A few days ago I made the Doorbell or Door Alarm ring from time to time : • Cara Membuat Notifikas...
This alarm can be used for notifications when someone enters.
and today I modified it again to be a doorbell or door alarm sound "Welcome"
In addition to greetings, this simple alarm can be applied to make anti-theft door alarms, alarm bells assalamualaikum, shop entrance alarms, gate alarms, anti-theft window alarms, fence alarms, and so on.
and this is the List of components used to create
Door Alarm Sounds Welcome
1. DFPlayer Mini
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2. Micro SD 2gb
3. 3 Watt Speaker
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4. Battery 16850
(used power bank/laptop battery)
5. Door Magnetic Switch/Sensor
6. NE555 TIMER Circuit / Momentary Active Module
Video link: • Video
Cooperation Email : trikidmanagement@gmail.com
Heading West by Audionautix is ​​licensed under a Creative Commons Attribution 4.0 license. creativecommon...