The MFRC522 is a highly integrated reader/writer IC for contactless communication at 13.56 MHz. It supports SPI, I²C, and UART protocols and is widely used with microcontrollers like Arduino, STM32, and Raspberry Pi. 3.3V Operating Frequency: 13.56 MHz Read Range: Up to 30mm (physically) 2. Finding and Installing the RC522 Proteus Library
You can find third-party libraries on hobbyist sites like The Engineering Projects or Cykeo . rc522 proteus library
// Example: Specific card check if (content.substring(1) == "BD 31 15 2B") Serial.println("Authorized access"); Serial.println(); delay(3000); else Serial.println(" Access denied"); delay(3000); The MFRC522 is a highly integrated reader/writer IC