For Proteus Download: Rfid Rc522 Library

void setup() Serial.begin(9600); SPI.begin(); mfrc522.PCD_Init(); Serial.println("Place a tag near the reader...");

If you’ve ever tried to simulate an RFID-based access control system or a contactless payment prototype in Proteus, you’ve likely hit the same wall: The standard Proteus library does not include the MFRC522 (RC522) module. rfid rc522 library for proteus download

void loop() if ( ! mfrc522.PICC_IsNewCardPresent()) return; if ( ! mfrc522.PICC_ReadCardSerial()) return; void setup() Serial

Without the library, you can’t test your Arduino or PIC code logic for reading UID tags. You either have to buy physical hardware or abandon the simulation. void setup() Serial.begin(9600)