Seeedstudios 125kHz RFID reader Example

rfid_reader.pde

void setup(){
  Serial.begin(9600);
  Serial1.begin(9600);
}

void loop(){
  char code[10];
  int bytesread = 0;
  
  while(Serial1.available() > 0){
    int val = Serial1.read();
    if(val == 2){
      bytesread = 0;
      while(bytesread < 10){
        if(Serial1.available() > 0){
          val = Serial1.read();
          code[bytesread] = val;
          bytesread++;
        }
      }
      if(bytesread == 10){
        Serial.println(code);
      }
      
    }
  }
}