Arduino Security and Alarm System Project

Arduino Security and Alarm System Project

by Dejan
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42 Comments
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Projects
In this project we will learn how to make an Arduino Security and Alarm System. You can watch the following video or read the written tutorial below.


Overview
The alarm activates in 10 seconds after pressing the A button. For detecting objects it uses an ultrasonic sensor, and once the alarm detect something a buzzer starts emitting a sound. In order to stop the alarm we need to insert a 4 digits password. The preset password is 1234 but we also have the possibility to change it.

By pressing the B button we enter the password change menu where first we need to enter the current password in order to continue and then enter the new 4 digits password. Once the password is changed, the next time we activate the alarm, we will only be able to stop the alarm by entering the new password. If we enter a wrong password we will get a message that we need to try again.

Required Components
Now let’s see the required components for this project. Obviously, we need an Arduino board, an ultrasonic sensor, an LCD display, a buzzer and a 4×4 keypad.

You can get the components needed for this Arduino Project from the links below:

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  Keypad …………………………………….. Amazon__/_Banggood__/_AliExpress__LCD_16×2_…………………………………._Amazon__/_Banggood__/'>Amazon / Banggood / AliExpress
  
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  LCD 16×2 …………………………………. Amazon / Banggood / AliExpress
  
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  Ultrasonic Sensor ……………………… Amazon / Banggood / AliExpress
  
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  Buzzer ……………………………………… Amazon / Banggood / AliExpress
  
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  Arduino Board ………………………….. Amazon / Banggood / AliExpress
  
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  Breadboard and Jump Wires ……… Amazon / Banggood / AliExpress
  

Disclosure: These are affiliate links. As an Amazon Associate I earn from qualifying purchases.