Make RFID RC-522 (Smart Card) Door Lock using Arduino

Circuit Diagram:

Make RFID RC-522 (Smart Card) Door Lock using Arduino
project details

project details......



RC-522 Library Download

Code:

  //Viral Science //RFID #include <SPI.h> #include <MFRC522.h> #include <Servo.h> #define SS_PIN 10 #define RST_PIN 9 #define LED_G 4 //define green LED pin #define LED_R 5 //define red LED #define BUZZER 2 //buzzer pin MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance. Servo myServo; //define servo name void setup() { Serial.begin(9600); // Initiate a serial communication SPI.begin(); // Initiate SPI bus mfrc522.PCD_Init(); // Initiate MFRC522 myServo.attach(3); //servo pin myServo.write(0); //servo start position pinMode(LED_G, OUTPUT); pinMode(LED_R, OUTPUT); pinMode(BUZZER, OUTPUT); noTone(BUZZER); Serial.println("Put your card to the reader..."); Serial.println(); } void loop() { // Look for new cards if ( ! mfrc522.PICC_IsNewCardPresent()) { return; } // Select one of the cards if ( ! mfrc522.PICC_ReadCardSerial()) { return; } //Show UID on serial monitor Serial.print("UID tag :"); String content= ""; byte letter; for (byte i = 0; i < mfrc522.uid.size; i++) { Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "); Serial.print(mfrc522.uid.uidByte[i], HEX); content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ")); content.concat(String(mfrc522.uid.uidByte[i], HEX)); } Serial.println(); Serial.print("Message : "); content.toUpperCase(); if (content.substring(1) == "83 23 38 BB") //change here the UID of the card/cards that you want to give access { Serial.println("Authorized access"); Serial.println(); delay(500); digitalWrite(LED_G, HIGH); tone(BUZZER, 500); delay(300); noTone(BUZZER); myServo.write(180); delay(5000); myServo.write(0); digitalWrite(LED_G, LOW); } else { Serial.println(" Access denied"); digitalWrite(LED_R, HIGH); tone(BUZZER, 300); delay(1000); digitalWrite(LED_R, LOW); noTone(BUZZER); } }

Project Testing Video: