The Intruder Detection System with SMS and Call Alert is a smart security system designed to detect unauthorized human movement and provide immediate notifications to the user. The system uses an HB100 Microwave Motion Sensor to continuously monitor the protected area for intruder activity. When motion is detected, the sensor sends a signal to the Arduino, which acts as the central controller. The Arduino processes the sensor data and activates a GSM module to automatically send an alert SMS and make a phone call to the registered user, informing them about the intrusion. At the same time, the system displays the intrusion status on an LCD display through an LCD driver interface. A regulated 5V power supply powers the entire system. This project provides a reliable, low-cost, and real-time security solution for homes, offices, banks, warehouses, and restricted areas. The instant SMS and call alert feature ensures quick response and enhances the overall effectiveness of the security system.      

Objectives:  

1. To detect unauthorized human movement using the HB100 microwave motion sensor.
2. To monitor the secured area continuously for intruder activity.
3. To process sensor signals using the Arduino microcontroller.
4. To provide real-time intrusion alerts through SMS notifications.
5. To automatically make a phone call to the authorized user during intrusion.
6. To display intrusion status on an LCD display.
7. To improve security for homes, offices, and restricted areas.
8. To develop a low-cost and reliable intruder detection and alert system.

      The major building blocks of this project are:

• Adapter power supply.
• Arduino.
• LCD display.
• HB-100 Motion sensors.
• GSM Module.

    Software’s used:

• Embedded C program.
• ARDUINO IDE studio.

       

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