RFID Security

• Simple local rfid security project

Hardware

• Arduino Uno
• LCD 16X2
• Arduino MFRC522 RFID
• Buzzer
• Led
• Servo sg90

Circuit Diagram

Source code pin

• LCD 16X2

  • VSS pin to GROUND
  • VCC/VDD pin to +5v
  • VO/VEE pin to Centre of potentiometer
  • LCD RS pin to digital pin 2
  • LCD Enable pin to digital pin 3
  • LCD D4 pin to digital pin 4
  • LCD D5 pin to digital pin 5
  • LCD D6 pin to digital pin 6
  • LCD D7 pin to digital pin 7
  • LCD R/W pin to GND

• MFRC522 RFID

  • RST pin to 9
  • SDA pin to 10
  • MOSI pin to 11
  • MISO pin to 12
  • SCK pin to 13

• BUZZER

  • pin to 8
  • pin to GND

• LED

  • redLed to A5
  • greenLed to A4
  • blueLed to A3

• SERVO SG90

  • pin to A0

Library

• Download the RFID library here created by miguelbalboa
• Unzip the RFID library
• Install the RFID library in your Arduino IDE
• Restart your Arduino IDE