If you had Proteus open, close it and restart it so the software can index the new components. Circuit Setup: Connecting RC522 to Arduino in Proteus
I can provide specific code templates or tailored multi-slave wiring setups based on your project goals. Share public link
When the PCBs arrived, the first board booted on the bench without drama. Logs that had once shown mysterious CRC mismatches were clean logs of UID reads and granted access. The updated Proteus library had saved her at least one revision cycle and a stack of obscure troubleshooting hours.
In summary, the RC522 Proteus library bridges the gap between hardware theory and practical design, providing a reliable environment for developing sophisticated RFID-based technologies. How to Use an RFID Module with Arduino for Beginners
Which you are planning to use (Arduino, PIC, or STM32)?
Supports multiple UID (Unique Identifier) simulation to test tag reading.
Because Labcenter (Proteus’s developer) does not officially maintain an RC522 model, the community has stepped up. The most reliable version as of late 2025 is maintained by Embedded Projects Hub and GitHub user 'simul8r' .
Navigate to your Proteus installation directory. It is usually found at:
Which do you plan to use? (Arduino, PIC, STM32)
: Sourcing the .LIB and .IDX files from reputable community sites like The Engineering Projects or GitHub. Copy-Paste : Move the downloaded files to:
If you have Proteus open, close it completely and relaunch it to re-index the component database. 4. Setting up an Arduino RC522 Simulation
Double-click the Arduino in Proteus and select the .hex file.