Introduction: Simple Arduino Based Intruder Alarm

Now a days security alarm is most important thing in our life...... especially for old aged people

So lets build an security alarm to alter this condition


1. Arduino

2.ultrasonic sensor

3.connecting wire

4.A buzzer

5.A power bank (if required just giving power to our arduino.

and some arduino programming skills.

Step 1: Connection to Arduino

Lets connect the arduino using the above given circuit....

Step 2: Time to Use Your Programming Skills

Now connect your arduino to your PC and upload this attached document to your arduino

NOTE: you can upload the file only if have the arduino app in your pc

Step 3: Congo You Have Completed Your Project

Now eject your arduino and connect it to the power bank.........

And your project will work........