This project uses an RFID module (RC522) to create an access control system with Arduino. The system checks RFID tags against a stored authorized UID and provides visual and audio feedback based on ...

#define SS_PIN 10 #define RST_PIN 9 #define SERVO_PIN 3 #define GREEN_LED 6 #define RED_LED 7 MFRC522 rfid(SS_PIN, RST_PIN); Servo myServo; byte authorizedUID[4] = {0x91, 0x61, 0x31, 0x03}; // !!!

The use of Radio Frequency IDentification (RFID) technologies is growing. Many different applications are implemented in various sectors, and used for very different purposes. RFID enables wireless ...