Page 487 - MDP2020-1

················································································ 명장양성프로젝트 【MDP】 과제발표회 자료집 Ⅰ | 481

5) RFID-RC522 코드
<Aduino Uno>
[사용한 컴파일러 : 아두이노 IDE / 사용한 언어 : C++]

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

#define SS_PIN 10

#define RST_PIN 9
MFRC522 mfrc522(SS_PIN, RST_PIN); // MFRC522 객체 생성

void setup()
{
Serial.begin(9600);

SPI.begin();
mfrc522.PCD_Init();
Serial.println("카드가 닿음");
Serial.println();

}
void loop()
{
if ( ! mfrc522.PICC_IsNewCardPresent())
{

return;
}
if ( ! mfrc522.PICC_ReadCardSerial())
{
return;

}
// UID 출력
Serial.print("UID tag :");
String content= "";
byte letter;

for (byte i = 0; i < mfrc522.uid.size; i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));

content.concat(String(mfrc522.uid.uidByte[i], HEX));
}