README.md

pn532

no_std implementation of the Pn532 protocol using embedded_hal traits.

Since communication with the Pn532 can be rather slow at times, communication can be split into multiple parts, a timeout can be provided or an async runtime can be used.

The Pn532 supports different serial links. The Interface trait abstracts over these different links.

Interface can be manually implemented or one the four provided interface structs can be used:

• spi::SPIInterface
• spi::SPIInterfaceWithIrq
• i2c::I2CInterface
• i2c::I2CInterfaceWithIrq

SPI example

use pn532::{requests::SAMMode, spi::SPIInterface, Pn532, Request};
use pn532::spi::SPIInterface;

// spi, cs and timer are structs implementing their respective embedded_hal traits.

let interface = SPIInterface {
    spi,
    cs,
};
let mut pn532: Pn532<_, _, 32> = Pn532::new(interface, timer);
if let Err(e) = pn532.process(&Request::sam_configuration(SAMMode::Normal, false), 0, 50.ms()){
    println!("Could not initialize PN532: {e:?}")
}
if let Ok(uid) = pn532.process(&Request::INLIST_ONE_ISO_A_TARGET, 7, 1000.ms()){
    let result = pn532.process(&Request::ntag_read(10), 17, 50.ms()).unwrap();
    if result[0] == 0x00 {
        println!("page 10: {:?}", &result[1..5]);
    }
}

msb-spi feature

If you want to use either spi::SPIInterface or spi::SPIInterfaceWithIrq and your peripheral cannot be set to lsb mode you need to enable the msb-spi feature of this crate.

std feature

Enable the std feature to use serialport::SerialPortInterface. Only works for targets supported by the serialport crate.

License

^{Licensed under either of Apache License, Version 2.0 or MIT license at your option.}
_{Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.}