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Merge remote-tracking branch 'origin/feat/nfc-reader' into feat/main-algo

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lib/NFC/src/MFRC522_I2C.cpp Normal file
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/**
* MFRC522_I2C.h - Library to use ARDUINO RFID MODULE KIT 13.56 MHZ WITH TAGS
*I2C BY AROZCAN MFRC522_I2C.h - Based on ARDUINO RFID MODULE KIT 13.56 MHZ WITH
*TAGS SPI Library BY COOQROBOT. Based on code Dr.Leong ( WWW.B2CQSHOP.COM )
* Created by Miguel Balboa (circuitito.com), Jan, 2012.
* Rewritten by Søren Thing Andersen (access.thing.dk), fall of 2013
*(Translation to English, refactored, comments, anti collision, cascade
*levels.) Extended by Tom Clement with functionality to write to sector 0 of
*UID changeable Mifare cards. Extended by Ahmet Remzi Ozcan with I2C
*functionality. Author: arozcan @
*https://github.com/arozcan/MFRC522-I2C-Library Released into the public
*domain.
*
* Please read this file for an overview and then MFRC522.cpp for comments on
*the specific functions. Search for "mf-rc522" on ebay.com to purchase the
*MF-RC522 board.
*
* There are three hardware components involved:
* 1) The micro controller: An Arduino
* 2) The PCD (short for Proximity Coupling Device): NXP MFRC522 Contactless
*Reader IC 3) The PICC (short for Proximity Integrated Circuit Card): A card or
*tag using the ISO 14443A interface, eg Mifare or NTAG203.
*
* The microcontroller and card reader uses I2C for communication.
* The protocol is described in the MFRC522 datasheet:
*http://www.nxp.com/documents/data_sheet/MFRC522.pdf
*
* The card reader and the tags communicate using a 13.56MHz electromagnetic
*field. The protocol is defined in ISO/IEC 14443-3 Identification cards --
*Contactless integrated circuit cards -- Proximity cards -- Part 3:
*Initialization and anticollision". A free version of the final draft can be
*found at http://wg8.de/wg8n1496_17n3613_Ballot_FCD14443-3.pdf Details are
*found in chapter 6, Type A – Initialization and anticollision.
*
* If only the PICC UID is wanted, the above documents has all the needed
*information. To read and write from MIFARE PICCs, the MIFARE protocol is used
*after the PICC has been selected. The MIFARE Classic chips and protocol is
*described in the datasheets: 1K:
*http://www.nxp.com/documents/data_sheet/MF1S503x.pdf 4K:
*http://www.nxp.com/documents/data_sheet/MF1S703x.pdf Mini:
*http://www.idcardmarket.com/download/mifare_S20_datasheet.pdf The MIFARE
*Ultralight chip and protocol is described in the datasheets: Ultralight:
*http://www.nxp.com/documents/data_sheet/MF0ICU1.pdf Ultralight C:
*http://www.nxp.com/documents/short_data_sheet/MF0ICU2_SDS.pdf
*
* MIFARE Classic 1K (MF1S503x):
* Has 16 sectors * 4 blocks/sector * 16 bytes/block = 1024 bytes.
* The blocks are numbered 0-63.
* Block 3 in each sector is the Sector Trailer. See
*http://www.nxp.com/documents/data_sheet/MF1S503x.pdf sections 8.6 and 8.7:
* Bytes 0-5: Key A
* Bytes 6-8: Access Bits
* Bytes 9: User data
* Bytes 10-15: Key B (or user data)
* Block 0 is read-only manufacturer data.
* To access a block, an authentication using a key from the block's sector
*must be performed first. Example: To read from block 10, first authenticate
*using a key from sector 3 (blocks 8-11). All keys are set to FFFFFFFFFFFFh at
*chip delivery. Warning: Please read section 8.7 "Memory Access". It includes
*this text: if the PICC detects a format violation the whole sector is
*irreversibly blocked. To use a block in "value block" mode (for
*Increment/Decrement operations) you need to change the sector trailer. Use
*PICC_SetAccessBits() to calculate the bit patterns. MIFARE Classic 4K
*(MF1S703x): Has (32 sectors * 4 blocks/sector + 8 sectors * 16 blocks/sector)
** 16 bytes/block = 4096 bytes. The blocks are numbered 0-255. The last block
*in each sector is the Sector Trailer like above. MIFARE Classic Mini (MF1 IC
*S20): Has 5 sectors * 4 blocks/sector * 16 bytes/block = 320 bytes. The blocks
*are numbered 0-19. The last block in each sector is the Sector Trailer like
*above.
*
* MIFARE Ultralight (MF0ICU1):
* Has 16 pages of 4 bytes = 64 bytes.
* Pages 0 + 1 is used for the 7-byte UID.
* Page 2 contains the last check digit for the UID, one byte manufacturer
*internal data, and the lock bytes (see
*http://www.nxp.com/documents/data_sheet/MF0ICU1.pdf section 8.5.2) Page 3 is
*OTP, One Time Programmable bits. Once set to 1 they cannot revert to 0. Pages
*4-15 are read/write unless blocked by the lock bytes in page 2. MIFARE
*Ultralight C (MF0ICU2): Has 48 pages of 4 bytes = 192 bytes. Pages 0 + 1 is
*used for the 7-byte UID. Page 2 contains the last check digit for the UID, one
*byte manufacturer internal data, and the lock bytes (see
*http://www.nxp.com/documents/data_sheet/MF0ICU1.pdf section 8.5.2) Page 3 is
*OTP, One Time Programmable bits. Once set to 1 they cannot revert to 0. Pages
*4-39 are read/write unless blocked by the lock bytes in page 2. Page 40 Lock
*bytes Page 41 16 bit one way counter Pages 42-43 Authentication configuration
* Pages 44-47 Authentication key
*/
#ifndef MFRC522_h
#define MFRC522_h
#include <Arduino.h>
#include <Wire.h>
// Firmware data for self-test
// Reference values based on firmware version
// Hint: if needed, you can remove unused self-test data to save flash memory
//
// Version 0.0 (0x90)
// Philips Semiconductors; Preliminary Specification Revision 2.0 - 01 August
// 2005; 16.1 Sefttest
const byte MFRC522_firmware_referenceV0_0[] PROGMEM = {
0x00, 0x87, 0x98, 0x0f, 0x49, 0xFF, 0x07, 0x19, 0xBF, 0x22, 0x30,
0x49, 0x59, 0x63, 0xAD, 0xCA, 0x7F, 0xE3, 0x4E, 0x03, 0x5C, 0x4E,
0x49, 0x50, 0x47, 0x9A, 0x37, 0x61, 0xE7, 0xE2, 0xC6, 0x2E, 0x75,
0x5A, 0xED, 0x04, 0x3D, 0x02, 0x4B, 0x78, 0x32, 0xFF, 0x58, 0x3B,
0x7C, 0xE9, 0x00, 0x94, 0xB4, 0x4A, 0x59, 0x5B, 0xFD, 0xC9, 0x29,
0xDF, 0x35, 0x96, 0x98, 0x9E, 0x4F, 0x30, 0x32, 0x8D};
// Version 1.0 (0x91)
// NXP Semiconductors; Rev. 3.8 - 17 September 2014; 16.1.1 Self test
const byte MFRC522_firmware_referenceV1_0[] PROGMEM = {
0x00, 0xC6, 0x37, 0xD5, 0x32, 0xB7, 0x57, 0x5C, 0xC2, 0xD8, 0x7C,
0x4D, 0xD9, 0x70, 0xC7, 0x73, 0x10, 0xE6, 0xD2, 0xAA, 0x5E, 0xA1,
0x3E, 0x5A, 0x14, 0xAF, 0x30, 0x61, 0xC9, 0x70, 0xDB, 0x2E, 0x64,
0x22, 0x72, 0xB5, 0xBD, 0x65, 0xF4, 0xEC, 0x22, 0xBC, 0xD3, 0x72,
0x35, 0xCD, 0xAA, 0x41, 0x1F, 0xA7, 0xF3, 0x53, 0x14, 0xDE, 0x7E,
0x02, 0xD9, 0x0F, 0xB5, 0x5E, 0x25, 0x1D, 0x29, 0x79};
// Version 2.0 (0x92)
// NXP Semiconductors; Rev. 3.8 - 17 September 2014; 16.1.1 Self test
const byte MFRC522_firmware_referenceV2_0[] PROGMEM = {
0x00, 0xEB, 0x66, 0xBA, 0x57, 0xBF, 0x23, 0x95, 0xD0, 0xE3, 0x0D,
0x3D, 0x27, 0x89, 0x5C, 0xDE, 0x9D, 0x3B, 0xA7, 0x00, 0x21, 0x5B,
0x89, 0x82, 0x51, 0x3A, 0xEB, 0x02, 0x0C, 0xA5, 0x00, 0x49, 0x7C,
0x84, 0x4D, 0xB3, 0xCC, 0xD2, 0x1B, 0x81, 0x5D, 0x48, 0x76, 0xD5,
0x71, 0x61, 0x21, 0xA9, 0x86, 0x96, 0x83, 0x38, 0xCF, 0x9D, 0x5B,
0x6D, 0xDC, 0x15, 0xBA, 0x3E, 0x7D, 0x95, 0x3B, 0x2F};
// Clone
// Fudan Semiconductor FM17522 (0x88)
const byte FM17522_firmware_reference[] PROGMEM = {
0x00, 0xD6, 0x78, 0x8C, 0xE2, 0xAA, 0x0C, 0x18, 0x2A, 0xB8, 0x7A,
0x7F, 0xD3, 0x6A, 0xCF, 0x0B, 0xB1, 0x37, 0x63, 0x4B, 0x69, 0xAE,
0x91, 0xC7, 0xC3, 0x97, 0xAE, 0x77, 0xF4, 0x37, 0xD7, 0x9B, 0x7C,
0xF5, 0x3C, 0x11, 0x8F, 0x15, 0xC3, 0xD7, 0xC1, 0x5B, 0x00, 0x2A,
0xD0, 0x75, 0xDE, 0x9E, 0x51, 0x64, 0xAB, 0x3E, 0xE9, 0x15, 0xB5,
0xAB, 0x56, 0x9A, 0x98, 0x82, 0x26, 0xEA, 0x2A, 0x62};
class MFRC522 {
public:
// MFRC522 registers. Described in chapter 9 of the datasheet.
enum PCD_Register {
// Page 0: Command and status
// 0x00 // reserved for future use
CommandReg = 0x01, // starts and stops command execution
ComIEnReg = 0x02, // enable and disable interrupt request control bits
DivIEnReg = 0x03, // enable and disable interrupt request control bits
ComIrqReg = 0x04, // interrupt request bits
DivIrqReg = 0x05, // interrupt request bits
ErrorReg = 0x06, // error bits showing the error status of the last
// command executed
Status1Reg = 0x07, // communication status bits
Status2Reg = 0x08, // receiver and transmitter status bits
FIFODataReg = 0x09, // input and output of 64 byte FIFO buffer
FIFOLevelReg = 0x0A, // number of bytes stored in the FIFO buffer
WaterLevelReg = 0x0B, // level for FIFO underflow and overflow warning
ControlReg = 0x0C, // miscellaneous control registers
BitFramingReg = 0x0D, // adjustments for bit-oriented frames
CollReg = 0x0E, // bit position of the first bit-collision detected on
// the RF interface
// 0x0F // reserved for future use
// Page 1: Command
// 0x10 // reserved for future use
ModeReg = 0x11, // defines general modes for transmitting and receiving
TxModeReg = 0x12, // defines transmission data rate and framing
RxModeReg = 0x13, // defines reception data rate and framing
TxControlReg = 0x14, // controls the logical behavior of the antenna
// driver pins TX1 and TX2
TxASKReg = 0x15, // controls the setting of the transmission modulation
TxSelReg = 0x16, // selects the internal sources for the antenna driver
RxSelReg = 0x17, // selects internal receiver settings
RxThresholdReg = 0x18, // selects thresholds for the bit decoder
DemodReg = 0x19, // defines demodulator settings
// 0x1A // reserved for future use
// 0x1B // reserved for future use
MfTxReg =
0x1C, // controls some MIFARE communication transmit parameters
MfRxReg =
0x1D, // controls some MIFARE communication receive parameters
// 0x1E // reserved for future use
SerialSpeedReg =
0x1F, // selects the speed of the serial UART interface
// Page 2: Configuration
// 0x20 // reserved for future use
CRCResultRegH =
0x21, // shows the MSB and LSB values of the CRC calculation
CRCResultRegL = 0x22,
// 0x23 // reserved for future use
ModWidthReg = 0x24, // controls the ModWidth setting?
// 0x25 // reserved for future use
RFCfgReg = 0x26, // configures the receiver gain
GsNReg = 0x27, // selects the conductance of the antenna driver pins
// TX1 and TX2 for modulation
CWGsPReg = 0x28, // defines the conductance of the p-driver output
// during periods of no modulation
ModGsPReg = 0x29, // defines the conductance of the p-driver output
// during periods of modulation
TModeReg = 0x2A, // defines settings for the internal timer
TPrescalerReg = 0x2B, // the lower 8 bits of the TPrescaler value. The
// 4 high bits are in TModeReg.
TReloadRegH = 0x2C, // defines the 16-bit timer reload value
TReloadRegL = 0x2D,
TCounterValueRegH = 0x2E, // shows the 16-bit timer value
TCounterValueRegL = 0x2F,
// Page 3: Test Registers
// 0x30 // reserved for future use
TestSel1Reg = 0x31, // general test signal configuration
TestSel2Reg = 0x32, // general test signal configuration
TestPinEnReg = 0x33, // enables pin output driver on pins D1 to D7
TestPinValueReg = 0x34, // defines the values for D1 to D7 when it is
// used as an I/O bus
TestBusReg = 0x35, // shows the status of the internal test bus
AutoTestReg = 0x36, // controls the digital self test
VersionReg = 0x37, // shows the software version
AnalogTestReg = 0x38, // controls the pins AUX1 and AUX2
TestDAC1Reg = 0x39, // defines the test value for TestDAC1
TestDAC2Reg = 0x3A, // defines the test value for TestDAC2
TestADCReg = 0x3B // shows the value of ADC I and Q channels
// 0x3C // reserved for production tests
// 0x3D // reserved for production tests
// 0x3E // reserved for production tests
// 0x3F // reserved for production tests
};
// MFRC522 commands. Described in chapter 10 of the datasheet.
enum PCD_Command {
PCD_Idle = 0x00, // no action, cancels current command execution
PCD_Mem = 0x01, // stores 25 bytes into the internal buffer
PCD_GenerateRandomID = 0x02, // generates a 10-byte random ID number
PCD_CalcCRC =
0x03, // activates the CRC coprocessor or performs a self test
PCD_Transmit = 0x04, // transmits data from the FIFO buffer
PCD_NoCmdChange = 0x07, // no command change, can be used to modify the
// CommandReg register bits without affecting
// the command, for example, the PowerDown bit
PCD_Receive = 0x08, // activates the receiver circuits
PCD_Transceive =
0x0C, // transmits data from FIFO buffer to antenna and
// automatically activates the receiver after transmission
PCD_MFAuthent =
0x0E, // performs the MIFARE standard authentication as a reader
PCD_SoftReset = 0x0F // resets the MFRC522
};
// MFRC522 RxGain[2:0] masks, defines the receiver's signal voltage gain
// factor (on the PCD). Described in 9.3.3.6 / table 98 of the datasheet at
// http://www.nxp.com/documents/data_sheet/MFRC522.pdf
enum PCD_RxGain {
RxGain_18dB = 0x00 << 4, // 000b - 18 dB, minimum
RxGain_23dB = 0x01 << 4, // 001b - 23 dB
RxGain_18dB_2 =
0x02 << 4, // 010b - 18 dB, it seems 010b is a duplicate for 000b
RxGain_23dB_2 =
0x03 << 4, // 011b - 23 dB, it seems 011b is a duplicate for 001b
RxGain_33dB = 0x04 << 4, // 100b - 33 dB, average, and typical default
RxGain_38dB = 0x05 << 4, // 101b - 38 dB
RxGain_43dB = 0x06 << 4, // 110b - 43 dB
RxGain_48dB = 0x07 << 4, // 111b - 48 dB, maximum
RxGain_min =
0x00 << 4, // 000b - 18 dB, minimum, convenience for RxGain_18dB
RxGain_avg =
0x04 << 4, // 100b - 33 dB, average, convenience for RxGain_33dB
RxGain_max =
0x07 << 4 // 111b - 48 dB, maximum, convenience for RxGain_48dB
};
// Commands sent to the PICC.
enum PICC_Command {
// The commands used by the PCD to manage communication with several
// PICCs (ISO 14443-3, Type A, section 6.4)
PICC_CMD_REQA = 0x26, // REQuest command, Type A. Invites PICCs in
// state IDLE to go to READY and prepare for
// anticollision or selection. 7 bit frame.
PICC_CMD_WUPA =
0x52, // Wake-UP command, Type A. Invites PICCs in state IDLE and
// HALT to go to READY(*) and prepare for anticollision or
// selection. 7 bit frame.
PICC_CMD_CT = 0x88, // Cascade Tag. Not really a command, but used
// during anti collision.
PICC_CMD_SEL_CL1 = 0x93, // Anti collision/Select, Cascade Level 1
PICC_CMD_SEL_CL2 = 0x95, // Anti collision/Select, Cascade Level 2
PICC_CMD_SEL_CL3 = 0x97, // Anti collision/Select, Cascade Level 3
PICC_CMD_HLTA = 0x50, // HaLT command, Type A. Instructs an ACTIVE PICC
// to go to state HALT.
// The commands used for MIFARE Classic (from
// http://www.nxp.com/documents/data_sheet/MF1S503x.pdf, Section 9)
// Use PCD_MFAuthent to authenticate access to a sector, then use these
// commands to read/write/modify the blocks on the sector.
// The read/write commands can also be used for MIFARE Ultralight.
PICC_CMD_MF_AUTH_KEY_A = 0x60, // Perform authentication with Key A
PICC_CMD_MF_AUTH_KEY_B = 0x61, // Perform authentication with Key B
PICC_CMD_MF_READ =
0x30, // Reads one 16 byte block from the authenticated sector of
// the PICC. Also used for MIFARE Ultralight.
PICC_CMD_MF_WRITE =
0xA0, // Writes one 16 byte block to the authenticated sector of
// the PICC. Called "COMPATIBILITY WRITE" for MIFARE
// Ultralight.
PICC_CMD_MF_DECREMENT =
0xC0, // Decrements the contents of a block and stores the result
// in the internal data register.
PICC_CMD_MF_INCREMENT =
0xC1, // Increments the contents of a block and stores the result
// in the internal data register.
PICC_CMD_MF_RESTORE = 0xC2, // Reads the contents of a block into the
// internal data register.
PICC_CMD_MF_TRANSFER = 0xB0, // Writes the contents of the internal
// data register to a block.
// The commands used for MIFARE Ultralight (from
// http://www.nxp.com/documents/data_sheet/MF0ICU1.pdf, Section 8.6)
// The PICC_CMD_MF_READ and PICC_CMD_MF_WRITE can also be used for
// MIFARE Ultralight.
PICC_CMD_UL_WRITE = 0xA2 // Writes one 4 byte page to the PICC.
};
// MIFARE constants that does not fit anywhere else
enum MIFARE_Misc {
MF_ACK = 0xA, // The MIFARE Classic uses a 4 bit ACK/NAK. Any other
// value than 0xA is NAK.
MF_KEY_SIZE = 6 // A Mifare Crypto1 key is 6 bytes.
};
// PICC types we can detect. Remember to update PICC_GetTypeName() if you
// add more.
enum PICC_Type {
PICC_TYPE_UNKNOWN = 0,
PICC_TYPE_ISO_14443_4 = 1, // PICC compliant with ISO/IEC 14443-4
PICC_TYPE_ISO_18092 = 2, // PICC compliant with ISO/IEC 18092 (NFC)
PICC_TYPE_MIFARE_MINI = 3, // MIFARE Classic protocol, 320 bytes
PICC_TYPE_MIFARE_1K = 4, // MIFARE Classic protocol, 1KB
PICC_TYPE_MIFARE_4K = 5, // MIFARE Classic protocol, 4KB
PICC_TYPE_MIFARE_UL = 6, // MIFARE Ultralight or Ultralight C
PICC_TYPE_MIFARE_PLUS = 7, // MIFARE Plus
PICC_TYPE_TNP3XXX = 8, // Only mentioned in NXP AN 10833 MIFARE Type
// Identification Procedure
PICC_TYPE_NOT_COMPLETE = 255 // SAK indicates UID is not complete.
};
// Return codes from the functions in this class. Remember to update
// GetStatusCodeName() if you add more.
enum StatusCode {
STATUS_OK = 1, // Success
STATUS_ERROR = 2, // Error in communication
STATUS_COLLISION = 3, // Collission detected
STATUS_TIMEOUT = 4, // Timeout in communication.
STATUS_NO_ROOM = 5, // A buffer is not big enough.
STATUS_INTERNAL_ERROR =
6, // Internal error in the code. Should not happen ;-)
STATUS_INVALID = 7, // Invalid argument.
STATUS_CRC_WRONG = 8, // The CRC_A does not match
STATUS_MIFARE_NACK = 9 // A MIFARE PICC responded with NAK.
};
// A struct used for passing the UID of a PICC.
typedef struct {
byte size; // Number of bytes in the UID. 4, 7 or 10.
byte uidByte[10];
byte sak; // The SAK (Select acknowledge) byte returned from the PICC
// after successful selection.
} Uid;
// A struct used for passing a MIFARE Crypto1 key
typedef struct {
byte keyByte[MF_KEY_SIZE];
} MIFARE_Key;
// Member variables
Uid uid; // Used by PICC_ReadCardSerial().
// Size of the MFRC522 FIFO
static const byte FIFO_SIZE = 64; // The FIFO is 64 bytes.
/////////////////////////////////////////////////////////////////////////////////////
// Functions for setting up the Arduino
/////////////////////////////////////////////////////////////////////////////////////
MFRC522(byte chipAddress);
/////////////////////////////////////////////////////////////////////////////////////
// Basic interface functions for communicating with the MFRC522
/////////////////////////////////////////////////////////////////////////////////////
void PCD_WriteRegister(byte reg, byte value);
void PCD_WriteRegister(byte reg, byte count, byte *values);
byte PCD_ReadRegister(byte reg);
void PCD_ReadRegister(byte reg, byte count, byte *values, byte rxAlign = 0);
void setBitMask(unsigned char reg, unsigned char mask);
void PCD_SetRegisterBitMask(byte reg, byte mask);
void PCD_ClearRegisterBitMask(byte reg, byte mask);
byte PCD_CalculateCRC(byte *data, byte length, byte *result);
/////////////////////////////////////////////////////////////////////////////////////
// Functions for manipulating the MFRC522
/////////////////////////////////////////////////////////////////////////////////////
void PCD_Init();
void PCD_Reset();
void PCD_AntennaOn();
void PCD_AntennaOff();
byte PCD_GetAntennaGain();
void PCD_SetAntennaGain(byte mask);
bool PCD_PerformSelfTest();
/////////////////////////////////////////////////////////////////////////////////////
// Functions for communicating with PICCs
/////////////////////////////////////////////////////////////////////////////////////
byte PCD_TransceiveData(byte *sendData, byte sendLen, byte *backData,
byte *backLen, byte *validBits = NULL,
byte rxAlign = 0, bool checkCRC = false);
byte PCD_CommunicateWithPICC(byte command, byte waitIRq, byte *sendData,
byte sendLen, byte *backData = NULL,
byte *backLen = NULL, byte *validBits = NULL,
byte rxAlign = 0, bool checkCRC = false);
byte PICC_RequestA(byte *bufferATQA, byte *bufferSize);
byte PICC_WakeupA(byte *bufferATQA, byte *bufferSize);
byte PICC_REQA_or_WUPA(byte command, byte *bufferATQA, byte *bufferSize);
byte PICC_Select(Uid *uid, byte validBits = 0);
byte PICC_HaltA();
/////////////////////////////////////////////////////////////////////////////////////
// Functions for communicating with MIFARE PICCs
/////////////////////////////////////////////////////////////////////////////////////
byte PCD_Authenticate(byte command, byte blockAddr, MIFARE_Key *key,
Uid *uid);
void PCD_StopCrypto1();
byte MIFARE_Read(byte blockAddr, byte *buffer, byte *bufferSize);
byte MIFARE_Write(byte blockAddr, byte *buffer, byte bufferSize);
byte MIFARE_Decrement(byte blockAddr, long delta);
byte MIFARE_Increment(byte blockAddr, long delta);
byte MIFARE_Restore(byte blockAddr);
byte MIFARE_Transfer(byte blockAddr);
byte MIFARE_Ultralight_Write(byte page, byte *buffer, byte bufferSize);
byte MIFARE_GetValue(byte blockAddr, long *value);
byte MIFARE_SetValue(byte blockAddr, long value);
/////////////////////////////////////////////////////////////////////////////////////
// Support functions
/////////////////////////////////////////////////////////////////////////////////////
byte PCD_MIFARE_Transceive(byte *sendData, byte sendLen,
bool acceptTimeout = false);
// old function used too much memory, now name moved to flash; if you need
// char, copy from flash to memory
// const char *GetStatusCodeName(byte code);
const __FlashStringHelper *GetStatusCodeName(byte code);
byte PICC_GetType(byte sak);
// old function used too much memory, now name moved to flash; if you need
// char, copy from flash to memory
// const char *PICC_GetTypeName(byte type);
const __FlashStringHelper *PICC_GetTypeName(byte type);
void PICC_DumpToSerial(Uid *uid);
void PICC_DumpMifareClassicToSerial(Uid *uid, byte piccType,
MIFARE_Key *key);
void PICC_DumpMifareClassicSectorToSerial(Uid *uid, MIFARE_Key *key,
byte sector);
void PICC_DumpMifareUltralightToSerial();
void MIFARE_SetAccessBits(byte *accessBitBuffer, byte g0, byte g1, byte g2,
byte g3);
bool MIFARE_OpenUidBackdoor(bool logErrors);
bool MIFARE_SetUid(byte *newUid, byte uidSize, bool logErrors);
bool MIFARE_UnbrickUidSector(bool logErrors);
/////////////////////////////////////////////////////////////////////////////////////
// Convenience functions - does not add extra functionality
/////////////////////////////////////////////////////////////////////////////////////
bool PICC_IsNewCardPresent();
bool PICC_ReadCardSerial();
private:
byte _chipAddress;
byte _resetPowerDownPin; // Arduino pin connected to MFRC522's reset and
// power down input (Pin 6, NRSTPD, active low)
byte MIFARE_TwoStepHelper(byte command, byte blockAddr, long data);
};
#endif

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/*
** EPITECH PROJECT, 2024
** T-IOT-901_convoyor
** File description:
** NfcReader
*/
#include "NfcReader.hpp"
NfcReader::NfcReader(int i2c_adress)
{
this->mfrc522 = new MFRC522(i2c_adress);
this->mfrc522->PCD_Init();
}
NfcReader::~NfcReader() {}
String NfcReader::ReadNfc()
{
this->uid.clear();
if (!this->mfrc522->PICC_IsNewCardPresent() ||
!this->mfrc522->PICC_ReadCardSerial()) {
delay(200);
return "0";
}
for (unsigned int i = 0; i < this->mfrc522->uid.size; i++) {
if (this->mfrc522->uid.uidByte[i] < 0xF) {
this->uid += '0';
this->uid += String(this->mfrc522->uid.uidByte[i], HEX);
} else {
this->uid += String(this->mfrc522->uid.uidByte[i], HEX);
}
}
return (this->uid);
}

28
lib/NFC/src/NfcReader.hpp Normal file
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@ -0,0 +1,28 @@
/*
** EPITECH PROJECT, 2024
** T-IOT-901_convoyor
** File description:
** NfcReader
*/
#ifndef NFCREADER_HPP_
#define NFCREADER_HPP_
#include <M5Stack.h>
#include "MFRC522_I2C.h"
#include <string>
class NfcReader {
public:
NfcReader(int i2c_adress);
~NfcReader();
String ReadNfc();
protected:
private:
MFRC522 *mfrc522;
String uid;
};
#endif /* !NFCREADER_HPP_ */