Rc522 | Proteus Library

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This report provides a comprehensive technical overview of the MFRC522 RFID module library for Proteus Design Suite. As the standard Proteus library does not include the MFRC522 component, an external library is required for simulation. This document details the installation process, pin configuration, communication protocols (SPI), and the procedure for simulating RFID tag reading and writing within the Proteus environment.

#include <SPI.h>
#include <MFRC522.h>
#define RST_PIN 9
#define SS_PIN 10
MFRC522 mfrc522(SS_PIN, RST_PIN);
void setup() 
Serial.begin(9600);
SPI.begin();
mfrc522.PCD_Init();
Serial.println("Scan a virtual card...");

void loop() 
// Look for new cards
if (!mfrc522.PICC_IsNewCardPresent()) 
return;
 rc522 proteus library
// Select one card
if (!mfrc522.PICC_ReadCardSerial()) 
return;

// Show UID on serial monitor
Serial.print("Card UID: ");
for (byte i = 0; i < mfrc522.uid.size; i++) 
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
Serial.println();
// Halt PICC
mfrc522.PICC_HaltA();
delay(1000);

Compile this code in Arduino IDE to generate a .HEX file. Then, load that HEX file into the microcontroller in Proteus (right-click µC -> Edit Properties -> Program File). void loop() // Look for new cards if (

Pseudo-sketch (conceptual):

#include <SPI.h>
#include <MFRC522.h>
#define SS_PIN 10
#define RST_PIN 9
MFRC522 mfrc522(SS_PIN, RST_PIN);
void setup() 
  SPI.begin();
  mfrc522.PCD_Init();
void loop() 
  if (!mfrc522.PICC_IsNewCardPresent()) return;
  if (!mfrc522.PICC_ReadCardSerial()) return;
  // UID available in mfrc522.uid.uidByte[], mfrc522.uid.size
  // Example: read block 4 using MIFARE auth and read

In Proteus, this firmware can be stepped through to watch SPI frames if the RC522 model returns consistent register responses.

Example low-level pseudocode to read UID:

spi_write(CommandReg, PCD_Idle);
spi_write(FIFOLevelReg, 0x80); // flush FIFO
spi_write(FIFODataReg, REQA); // or appropriate command sequence
spi_write(CommandReg, PCD_Transceive);
wait for IRQ or poll CommIrqReg for RxDone
read FIFO to get response (UID)

The RC522 Proteus library is not an official product of Labcenter Electronics (the makers of Proteus). It is a custom-built simulation model created by enthusiasts to mimic the behavior of the Philips/NXP MFRC522 chip.

Navigate to your Proteus installation directory. The default paths are: // Select one card if (

Some versions use LIBRARY for schematic symbols and MODELS for simulation code. However, for user-added components, you may place .IDX and .HEX files in the main DATA folder or a USERLIB folder.

Modern Simplification: In newer Proteus versions, you can use the Library Manager (System > Library Manager) and select "Install from local package" if the library is packaged correctly.

Cause: Feeding 5V into the VCC pin.
Fix: Use a 3.3V power terminal. If your real project uses a level shifter (because Arduino outputs 5V on MOSI/SCK), simulate that as well using a logic level converter component in Proteus.

The MFRC522 is a highly integrated reader/writer IC for contactless communication at 13.56 MHz. It is widely used in access control, attendance systems, and interactive projects. While hardware prototyping is essential, software simulation using Proteus allows for cost-effective debugging and circuit verification before physical assembly. The "RC522 Proteus Library" refers to a custom component file (usually .LIB and .IDX or .LIB and .MOD) created by the open-source community to emulate the behavior of the physical module.