RFID - 테스트 (아이디어)

Dump_RFID from Sangho Lee on Vimeo.

#include <SPI.h>
#include <MFRC522.h>

#define RST_PIN  9 
#define SS_PIN  10

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

void setup()
{
  Serial.begin(9600);                     // Intialize serial communication with the PC
  SPI.begin();                             // Init SPI bus
  mfrc522.PCD_Init();                     // Init MFRC522 
  ShowReaderDetails();                    // Show details of PCD - MFR522 card reader deatails.
  Serial.println(" Scan PICC to see UID, type, and data blocks...");
}

void loop()
{
 //Look for new cards
  if(!mfrc522.PICC_IsNewCardPresent())
  {
    return;
  }
  // Select one of the cards
  if(!mfrc522.PICC_ReadCardSerial())
  {
     return; 
  }
  
  //Dump debug info about the card; PICC_HAlta() is autimatically called.
  mfrc522.PICC_DumpToSerial(&(mfrc522.uid));
}

void ShowReaderDetails()
{
   //Get the MFRC522 software version.
  byte v = mfrc522.PCD_ReadRegister(mfrc522.VersionReg);
  Serial.print("MFRC Software Version : 0x");
  Serial.print(v, HEX);
  if ( v == 0x92)
           Serial.print(" = v1.0");
  else if ( v == 0x92)
           Serial.print(" = v2.0");
  else 
           Serial.print(" (unknow)");
  Serial.println("");
 // When 0x00 or 0xFF is returned, communication probably falied 
  if ((v == 0x00) || (v == 0xFF))
   {
      Serial.println("WARNING: Communication failure, is the MFRC422 properly connected?");
   } 
}