Inability to "present" a virtual RFID card to the reader.
Paste these files into your Proteus library directory, usually located at: C:\ProgramData\Labcenter Electronics\Proteus 8 Professional\Data\LIBRARY rc522 proteus library updated
2.5V to 3.3V (Note: Proteus logic levels must match your microcontroller). Communication Interfaces: SPI (most common), I2C, and UART. Compatibility: Fully supports ISO/IEC 14443 A/MIFARE cards. Inability to "present" a virtual RFID card to the reader