Biometric Security System Smart and much Secure Uses: Residential Buildings, Offices, Universities, Industry, Hospitals and many more.

1. INTRODUCTION
• Biometric Security
System
• Smart and much
Secure
• Uses: Residential
Buildings, Offices,
Universities, Industry,
Hospitals and many
more.

2. • Biometric Door Lock Security System
using Node MCU (Micro Controller).
• Setting up all the components in a PCB
board & Soldering.
• Programming the micro controller to control
the whole system.
• Run the system for checking purposes.
METHODOLOGY

3. Block Diagram
Servo
Motor
DC Output
Node MCU
Finger Print
Sensor
AC 220V SMPS
Data Logger System

4. WORKING PRINCIPLE
How Biometric Door Lock Security System works
• Supply voltage AC 220V through the SMPS
• SMPS convert AC 220V to DC 5V
• We feed this voltage to the micro controller to run
• The micro controller controls the whole system
• If the fingerprint is recognized then servo motor will
move and door will be open.

5. • Node MCU
• SMPS
• Switch
• Servo Motor
• Fingerprint Sensor.
• Capacitor.
• Transistor.

6. Node MCU

7. SMPS

8. Servo Motor

9. Fingerprint Sensor

10. Pricing list
1. Node MCU = 264 Taka
2. OLED Display 0.96” = 486 Taka
3. SMPS = 550 Taka
4. Finger Print Sensor = 980 Taka
5. Servo Motor = 119 Taka
6. Others =150 Taka
Total = 2380 Taka

11. Applications
The application areas for this project in this modern and practical
world are huge and some of these are given below:
• It can be used in any educational institutions.
• It can be used in any industry or corporate offices.
• It can be used in Hospitals.
• It can be used to identify authentic or fake person.
• It can be used to minimize energy wastage.
• It can be used in residential areas.

12. Circuit Diagram

13. REAL IMAGE OF THE WHOLE
SETUP

14. Future Working
• Arduino coding
• 100+ data recognition
• Entry & Exit data history in Excel
• Unauthorized entry notification

15. THE END