Expand description
Driver library for interfacing with the MFRC522 contacless communication IC, based on the embedded-hal traits.
The MFRC522 is a Proximity Coupling Device (PCD) and communicates with a Proximity Integrated Circuit Card (PICC). The main purpose of the MFRC522 is to give the connected device (where we’re running this driver) the ability to read and write data from/to the card.
The MFRC522 supports 3 communication interfaces:
- SPI
- I2C
- UART
However, currently only SPI communication is implemented in this crate.
Quickstart
use mfrc522::comm::blocking::spi::SpiInterface;
use mfrc522::Mfrc522;
// Use your HAL to create an SPI device that implements the embedded-hal `SpiDevice` trait.
// This device manages the SPI bus and CS pin.
let spi = spi::Spi;
let itf = SpiInterface::new(spi);
let mut mfrc522 = Mfrc522::new(itf).init().unwrap();
// The reported version is expected to be 0x91 or 0x92
let mfrc522_version = mfrc522.version().unwrap();
Take a look at SpiInterface for options when creating the communication interface, and Mfrc522 for information on the functions that are available after initialization.
Example applications
Modules
- Contains implementations for the different communication interfaces that are available for the MFRC522.
Structs
- Answer To reQuest type A
- MFRC522 driver
Enums
- The MFRC522 driver is ready for use.
- The MFRC522 driver starts in this state and needs to be initialized before it can be used.
Traits
- Implemented by the different states of the MFRC522 driver.