| Smart Lock with RFID 1. System Overview Keyless Convenience: This project utilizes an RFID card and servo motor to create a smart lock that opens with a simple tap. 2. Function RFID Access: The system reads the unique identifier on your RFID card. Authorized Access: If the card matches a pre-programmed ID, the servo motor unlocks the door. Secure Entry: Unauthorized cards trigger no response, keeping your space secure. 3. Benefits Keyless Entry: Ditch the keys! Convenient access with a simple tap of your card. Enhanced Security: Eliminates the risk of lost or stolen keys. Simple to Use: User-friendly and easy to operate for anyone. |
#include <SPI.h>
#include <MFRC522.h>
#include <Servo.h>
#define SS_PIN 10
#define RST_PIN 9
#define SERVO_PIN 3
Servo myservo;
#define ACCESS_DELAY 2000
#define DENIED_DELAY 1000
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
void setup()
{
Serial.begin(9600); // Initiate a serial communication
SPI.begin(); // Initiate SPI bus
mfrc522.PCD_Init(); // Initiate MFRC522
myservo.attach(SERVO_PIN);
myservo.write( 70 );
delay(7500);
myservo.write( 0 );
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) == "81 C0 2A 20") //change here the UID of the card
{
Serial.println("Authorized access");
Serial.println();
myservo.write( 70 );
delay(7500);
myservo.write( 0 );
}
else {
Serial.println(" Access denied");
delay(
