com.diozero.sandpit

Class MFRC522

java.lang.Object

com.diozero.sandpit.MFRC522

All Implemented Interfaces:

Closeable, AutoCloseable

public class MFRC522
extends Object
implements Closeable

Datasheet
Example Python code

Work-in-progress!

Wiring:

• SDA: SPI0 CE0 (GPIO8)
• SCK: SPI0 SCLK (GPIO11)
• MOSI: SPI0 MOSI (GPIO10)
• MISO: SPI0 MISO (GPIO9)
• IRQ: Not connected
• GND: GND
• RST: Any free GPIO (GPIO25)
• 3v3: 3v3

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MFRC522.Response

Field Summary

Fields

Modifier and Type	Field and Description
static byte	MI_ERR
static byte	MI_NOTAGERR
static byte	MI_OK
static byte	PICC_ANTICOLL
static byte	PICC_AUTH_KEY_A
static byte	PICC_AUTH_KEY_B
static byte	PICC_HALT
static byte	PICC_MF_DECREMENT
static byte	PICC_MF_INCREMENT
static byte	PICC_MF_RESTORE
static byte	PICC_MF_TRANSFER
static byte	PICC_MF_WRITE
static byte	PICC_READ
static byte	PICC_REQALL
static byte	PICC_REQIDL
static byte	PICC_SEL_CL1
static byte	PICC_SEL_CL2
static byte	PICC_SEL_CL3

Constructor Summary

Constructors

Constructor and Description
MFRC522(int chipSelect, int resetGpio)
MFRC522(int controller, int chipSelect, DigitalOutputDevice resetPin)
MFRC522(int controller, int chipSelect, int resetGpio)

Method Summary

Modifier and Type	Method and Description
MFRC522.Response	anticoll()
byte	authenticate(byte authMode, byte blockAddr, byte[] sectorKey, byte[] serNum)
byte[]	calculateCrc(byte[] data)
void	close()
void	read(byte blockAddr)
MFRC522.Response	request(byte reqMode) Find cards, read the card type number Input parameters: reqMode - find cards way TagType - Return Card Type 0x4400 = Mifare_UltraLight 0x0400 = Mifare_One(S50) 0x0200 = Mifare_One(S70) 0x0800 = Mifare_Pro(X) 0x4403 = Mifare_DESFire
void	reset() Perform soft reset of AddicoreRFID Module
int	selectTag(byte[] serNum)
void	setAntennaOn(boolean on) Open antennas, each time you start or shut down the natural barrier between the transmitter should be at least 1ms interval
void	setLog(boolean log)
void	stopCrypto1()
MFRC522.Response	toCard(byte command, byte[] data)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PICC_REQIDL

public static final byte PICC_REQIDL

See Also:

Constant Field Values

PICC_READ

public static final byte PICC_READ

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Constant Field Values

PICC_HALT

public static final byte PICC_HALT

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Constant Field Values

PICC_REQALL

public static final byte PICC_REQALL

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Constant Field Values

PICC_AUTH_KEY_A

public static final byte PICC_AUTH_KEY_A

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Constant Field Values

PICC_AUTH_KEY_B

public static final byte PICC_AUTH_KEY_B

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Constant Field Values

PICC_ANTICOLL

public static final byte PICC_ANTICOLL

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Constant Field Values

PICC_SEL_CL1

public static final byte PICC_SEL_CL1

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Constant Field Values

PICC_SEL_CL2

public static final byte PICC_SEL_CL2

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Constant Field Values

PICC_SEL_CL3

public static final byte PICC_SEL_CL3

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Constant Field Values

PICC_MF_WRITE

public static final byte PICC_MF_WRITE

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Constant Field Values

PICC_MF_TRANSFER

public static final byte PICC_MF_TRANSFER

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Constant Field Values

PICC_MF_DECREMENT

public static final byte PICC_MF_DECREMENT

See Also:

Constant Field Values

PICC_MF_INCREMENT

public static final byte PICC_MF_INCREMENT

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Constant Field Values

PICC_MF_RESTORE

public static final byte PICC_MF_RESTORE

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Constant Field Values

MI_OK

public static final byte MI_OK

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Constant Field Values

MI_NOTAGERR

public static final byte MI_NOTAGERR

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Constant Field Values

MI_ERR

public static final byte MI_ERR

See Also:

Constant Field Values

Constructor Detail

MFRC522

public MFRC522(int chipSelect,
               int resetGpio)

MFRC522

public MFRC522(int controller,
               int chipSelect,
               int resetGpio)

MFRC522

public MFRC522(int controller,
               int chipSelect,
               DigitalOutputDevice resetPin)

Method Detail

setAntennaOn

public void setAntennaOn(boolean on)

Open antennas, each time you start or shut down the natural barrier between the transmitter should be at least 1ms interval

Parameters:

on - on/off value

reset

public void reset()

Perform soft reset of AddicoreRFID Module

request

public MFRC522.Response request(byte reqMode)

Find cards, read the card type number Input parameters: reqMode - find cards way TagType - Return Card Type 0x4400 = Mifare_UltraLight 0x0400 = Mifare_One(S50) 0x0200 = Mifare_One(S70) 0x0800 = Mifare_Pro(X) 0x4403 = Mifare_DESFire

Parameters:

reqMode - The request mode

Returns:

response?

toCard

public MFRC522.Response toCard(byte command,
                               byte[] data)

anticoll

public MFRC522.Response anticoll()

calculateCrc

public byte[] calculateCrc(byte[] data)

selectTag

public int selectTag(byte[] serNum)

authenticate

public byte authenticate(byte authMode,
                         byte blockAddr,
                         byte[] sectorKey,
                         byte[] serNum)

stopCrypto1

public void stopCrypto1()

read

public void read(byte blockAddr)

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

setLog

public void setLog(boolean log)