智能门禁
arduino rc522读卡器  sg90舵机 校园卡
我的校园卡号识别为 30fcb4a8d

#include
#include
#include

RFID rfid(10,5);
unsigned char RC_size;
unsigned char blockAddr;        //选择操作的块地址0～63
unsigned char i,tmp;
unsigned char status;
unsigned char str[MAX_LEN];
Servo servo_5;
char * card[]={"30fcb4a8d","10aab4afb","30fcb4a83"};

char * name[]={"wu","liu","lu"};

String rc;

String RFID_readcardnum() {

 rfid.readCardSerial();
  String stringserNum=String(rfid.serNum[0], HEX)+String(rfid.serNum[1], HEX)+String(rfid.serNum[2], HEX)+String(rfid.serNum[3], HEX)+String(rfid.serNum[4], HEX);
      //选卡，返回卡容量（锁定卡片，防止多次读写）
      rfid.selectTag(rfid.serNum);
  return stringserNum;
}

//4字节卡序列号，第5字节为校验字节
//新扇区A密码，16个扇区，每个扇区密码6Byte
unsigned char sectorNewKeyA[16][16] = {
 {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
 {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xff,0x07,0x80,0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
 {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xff,0x07,0x80,0x69, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},};
unsigned char serNum[5];
//写卡数据
//原扇区A密码，16个扇区，每个扇区密码6Byte
unsigned char sectorKeyA[16][16] = {
 {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
 {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
 {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},};

void setup(){
  rc = "";
  Serial.begin(9600);
  SPI.begin();
  rfid.init();
  servo_5.attach(5);
  Serial.begin(9600);
}

void loop(){
  if ( rfid.isCard()  ) {
    rc = RFID_readcardnum();
    for (int i = (1); i <= (sizeof(card)/sizeof(card[0])); i = i + (1)) {
      if (rc == card[(int)(i - 1)]) {
        servo_5.write(90);
        delay(3000);
        servo_5.write(0);
        delay(0);

      }
    }
    Serial.println(RFID_readcardnum());
  }

}