SmartDoorLock

SmartDoorLock is an advanced door locking system designed to enhance home security and convenience. It uses RFID technology and a web interface for remote control, providing an easy-to-use and secure solution for managing access to your home.

Video Showcase

Table of Contents

• SmartDoorLock
  • Table of Contents
  • Features
  • Hardware Components
  • Software Requirements
  • Setup Instructions
    • Hardware Setup
    • Software Setup
  • How It Works
  • Use Cases
  • Benefits
  • Troubleshooting

Features

• Remote Control: Open and close your door from anywhere using a secure web interface.
• RFID Access: Unlock your door with an RFID card, eliminating the need for traditional keys.
• Real-Time Alerts: Receive instant updates on the website for every lock/unlock attempt.

Hardware Components

• NodeMCU ESP8266
• RFID Sensor (MFRC522)
• Servo Motor
• Button
• RGB LED
• Breadboard and Jumper Wires

Software Requirements

• Arduino IDE
• Libraries:
  • SPI.h
  • Servo.h
  • MFRC522.h
  • WiFiManager.h
  • ESP8266WiFi.h
  • PubSubClient.h
  • WiFiClientSecure.h

Setup Instructions

Hardware Setup

1. Connect the RFID Sensor:

   • RST to GPIO0 (D3)
   • SDA to GPIO2 (D4)
   • MOSI to GPIO13 (D7)
   • MISO to GPIO12 (D6)
   • SCK to GPIO14 (D5)
   • GND to GND
   • 3.3V to 3.3V

2. Connect the Servo Motor:

   • Signal to GPIO5 (D1)
   • Power to 5V
   • Ground to GND

3. Connect the Button:

   • One side to GPIO4 (D2)
   • The other side to GND

4. Connect the RGB LED:

   • Red pin to GPIO15 (D8)
   • Green pin to GPIO16 (D0)
   • Blue pin to 3.3V

Software Setup

1. Install Arduino IDE: Download and install the Arduino IDE from the official Arduino website.
2. Install Libraries: Open the Arduino IDE, go to Sketch -> Include Library -> Manage Libraries, and install the required libraries.
3. Upload Code: Connect your NodeMCU ESP8266 to your computer, open the provided code in the Arduino IDE, and upload it to the NodeMCU.

How It Works

1. Initialization: On startup, the system initializes the servo motor, RFID sensor, button, WiFi connection, and MQTT client.
2. RFID Authentication: The RFID sensor continuously checks for a new card. When a valid card is detected, the door is unlocked or locked, and the state is published to the MQTT broker.
3. Remote Control: The door can also be controlled remotely via the web interface, which sends commands through the MQTT broker.
4. Button Control: The button provides a manual method to lock or unlock the door.
5. LED Indicators: The RGB LED indicates the status of the door:
   • Red: Locked
   • Green: Unlocked

Use Cases

• Home Security: Keep your home secure by monitoring and controlling access remotely.
• Family Access: Provide easy access for family members with RFID cards.
• Vacation Peace of Mind: Check and control your door’s status while away.
• Delivery Access: Open the door remotely for trusted deliveries and lock it afterward.

Benefits

• Increased Security: Enhanced security features protect against unauthorized access.
• Convenience: Simplify your life with easy-to-use RFID access and remote control.
• Peace of Mind: Stay informed and confident about your home’s security.
• User-Friendly: Easy to set up and use with an intuitive web interface.

Troubleshooting

• WiFi Connection Issues: Ensure your NodeMCU is within range of the WiFi router and check the SSID and password.
• RFID Not Reading: Check the connections and ensure the RFID card/tag is valid and properly aligned with the sensor.
• Servo Motor Not Moving: Verify the power supply and connections to the servo motor.

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