RFID with servo project

1#include <SPI.h>
2#include <MFRC522.h>
3#include <Servo.h>
4
5#define SS_PIN 10
6#define RST_PIN 9
7MFRC522 mfrc522(SS_PIN, RST_PIN);   // Create MFRC522 instance
8Servo myServo;
9
10void setup() {
11  Serial.begin(9600);   // Initialize serial communications
12  SPI.begin();          // Init SPI bus
13  mfrc522.PCD_Init();    // Init MFRC522
14  myServo.attach(3);    // Servo on pin 3
15  myServo.write(0);     // Initial position (Locked)
16  Serial.println("Scan your card...");
17}
18
19void loop() {
20  // Check if a new card is present
21  if ( ! mfrc522.PICC_IsNewCardPresent()) {
22    return;
23  }
24  // Select one of the cards
25  if ( ! mfrc522.PICC_ReadCardSerial()) {
26    return;
27  }
28
29  // Here you would check the UID of the card
30  // For now, any card will rotate the servo
31  Serial.println("Access Granted!");
32  myServo.write(90);    // Move to 90 degrees (Unlocked)
33  delay(3000);          // Wait 3 seconds
34  myServo.write(0);     // Back to 0 (Locked)
35}
36