Smart Door Lock System
Secure your home with Arduino-powered keypad authentication and servo motor control
Arduino
Security
Servo
Keypad
IoT
Project Overview
This Arduino-based smart door lock system provides secure access control using a 4x4 matrix keypad and servo motor. The system features password authentication, automatic locking, and buzzer alerts for unauthorized access attempts.
Password-protected access
Automatic locking after 5 seconds
Buzzer alerts for wrong passwords
Easy password reset functionality
Components Required
- • Arduino Uno
- • 4x4 Matrix Keypad
- • SG90 Servo Motor
- • Buzzer
- • Breadboard
- • Jumper Wires
- • 9V Battery Pack
How to Use
- 1. Enter your 4-digit password using the keypad
- 2. Press '#' to confirm your entry
- 3. If correct, the servo unlocks the door
- 4. Door automatically locks after 5 seconds
- 5. Press '*' to clear current input
Default Password: D000
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