Primarily SPI (Serial Peripheral Interface).
, the standard for high-frequency contactless communication. rc522 proteus library updated
The updated RC522 Proteus library enables the simulation of the within the Proteus Design Suite, allowing developers to test RFID-based security and access control systems without physical hardware. This update often includes improved simulation models that more accurately mimic the behavior of real-world RFID tags and reader modules. Key Features and Specifications Operating Frequency : Operates at Primarily SPI (Serial Peripheral Interface)