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[스크랩] [Arduino 실습 43] RFID사용하기

작성자송명규|작성시간26.06.18|조회수17 목록 댓글 0

RFID 라이브러리 버전을 1.4.0 버전을 설치해야만 제대로 동작합니다.

반드시 1.4.0 버전을 설치하시기 바랍니다.

 

RFID 라이브러리 이름 :  MFRC522

버전 : 1.4.0

버전 : 1.3.5, 1.3.6 버전도 된다고 합니다.

참고로 7대 법통분은 1.4.12 최신버전도 동작합니다. == 7대 법통 

 

RFID에서는 Sensor 쉴드를 가급적 사용하지마세요

== Sensor 쉴드를 사용할 경우는 최신버전에서는 안되는 경향이 있습니다.

 

/*

 * Initial Author: ryand1011 (https://github.com/ryand1011)

 *

 * Reads data written by a program such as "rfid_write_personal_data.ino"

 *

 * See: https://github.com/miguelbalboa/rfid/tree/master/examples/rfid_write_personal_data

 *

 * Uses MIFARE RFID card using RFID-RC522 reader

 * Uses MFRC522 - Library

 * -----------------------------------------------------------------------------------------

 *             MFRC522      Arduino       Arduino   Arduino    Arduino          Arduino

 *             Reader/PCD   Uno/101       Mega      Nano v3    Leonardo/Micro   Pro Micro

 * Signal      Pin          Pin           Pin       Pin        Pin              Pin

 * -----------------------------------------------------------------------------------------

 * RST/Reset   RST          9             5         D9         RESET/ICSP-5     RST

 * SPI SS      SDA(SS)      10            53        D10        10               10

 * SPI MOSI    MOSI         11 / ICSP-4   51        D11        ICSP-4           16

 * SPI MISO    MISO         12 / ICSP-1   50        D12        ICSP-1           14

 * SPI SCK     SCK          13 / ICSP-3   52        D13        ICSP-3           15

 *

 * More pin layouts for other boards can be found here: https://github.com/miguelbalboa/rfid#pin-layout

*/

 

#include <SPI.h>

#include <MFRC522.h>

 

#define RST_PIN         9           // Configurable, see typical pin layout above

#define SS_PIN          10          // Configurable, see typical pin layout above

 

MFRC522 mfrc522(SS_PIN, RST_PIN);   // Create MFRC522 instance

 

//*****************************************************************************************//

void setup() {

  Serial.begin(9600);                                           // Initialize serial communications with the PC

  SPI.begin();                                                  // Init SPI bus

  mfrc522.PCD_Init();                                              // Init MFRC522 card

  Serial.println(F("Read personal data on a MIFARE PICC:"));    //shows in serial that it is ready to read

}

 

//*****************************************************************************************//

void loop() {

 

  // Prepare key - all keys are set to FFFFFFFFFFFFh at chip delivery from the factory.

  MFRC522::MIFARE_Key key;

  for (byte i = 0; i < 6; i++) key.keyByte[i] = 0xFF;

 

  //some variables we need

  byte block;

  byte len;

  MFRC522::StatusCode status;

 

  //-------------------------------------------

 

  // Reset the loop if no new card present on the sensor/reader. This saves the entire process when idle.

  if ( ! mfrc522.PICC_IsNewCardPresent()) {

    return;

  }

 

  // Select one of the cards

  if ( ! mfrc522.PICC_ReadCardSerial()) {

    return;

  }

 

  Serial.println(F("**Card Detected:**"));

 

  //-------------------------------------------

 

  mfrc522.PICC_DumpDetailsToSerial(&(mfrc522.uid)); //dump some details about the card

 

  //mfrc522.PICC_DumpToSerial(&(mfrc522.uid));      //uncomment this to see all blocks in hex

 

  //-------------------------------------------

 

  Serial.print(F("Name: "));

 

  byte buffer1[18];

 

  block = 4;

  len = 18;

 

  //------------------------------------------- GET FIRST NAME

  status = mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_A, 4, &key, &(mfrc522.uid)); //line 834 of MFRC522.cpp file

  if (status != MFRC522::STATUS_OK) {

    Serial.print(F("Authentication failed: "));

    Serial.println(mfrc522.GetStatusCodeName(status));

    return;

  }

 

  status = mfrc522.MIFARE_Read(block, buffer1, &len);

  if (status != MFRC522::STATUS_OK) {

    Serial.print(F("Reading failed: "));

    Serial.println(mfrc522.GetStatusCodeName(status));

    return;

  }

 

  //PRINT FIRST NAME

  for (uint8_t i = 0; i < 16; i++)

  {

    if (buffer1[i] != 32)

    {

      Serial.write(buffer1[i]);

    }

  }

  Serial.print(" ");

 

  //---------------------------------------- GET LAST NAME

 

  byte buffer2[18];

  block = 1;

 

  status = mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_A, 1, &key, &(mfrc522.uid)); //line 834

  if (status != MFRC522::STATUS_OK) {

    Serial.print(F("Authentication failed: "));

    Serial.println(mfrc522.GetStatusCodeName(status));

    return;

  }

 

  status = mfrc522.MIFARE_Read(block, buffer2, &len);

  if (status != MFRC522::STATUS_OK) {

    Serial.print(F("Reading failed: "));

    Serial.println(mfrc522.GetStatusCodeName(status));

    return;

  }

 

  //PRINT LAST NAME

  for (uint8_t i = 0; i < 16; i++) {

    Serial.write(buffer2[i] );

  }



  //----------------------------------------

 

  Serial.println(F("\n**End Reading**\n"));

 

  delay(1000); //change value if you want to read cards faster

 

  mfrc522.PICC_HaltA();

  mfrc522.PCD_StopCrypto1();

}

//*****************************************************************************************//

 

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