Program Delete Fingerprint

Delete_Fingerprint.ino

#include "Adafruit_Fingerprint.h"
#include "SoftwareSerial.h"
SoftwareSerial mySerial(2, 3);
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);

void setup() {
  Serial.begin(9600);
  finger.begin(57600);

  if (finger.verifyPassword()) {
    Serial.println("FingerPrint Sensor Ditemukan!");
  } else {
    Serial.println("FingerPrint Sensor Tidak Ditemukan! :(");
    while (1) {
      delay(1);
    }
  }

}

void loop() {
  DELETE();
}


//------------------------------------------DELETE-----------------------------------//
void DELETE() {
  Serial.println("Please type in the ID # (from 1 to 127) you want to delete...");
  uint8_t id = readnumber();
  if (id == 0) {// ID #0 not allowed, try again!
    return;
  }
  Serial.print("Deleting ID #");
  Serial.println(id);
  deleteFingerprint(id);
}
//------------------------------------------PROSES DELETE---------------------------//

uint8_t readnumber(void) {
  uint8_t num = 0;

  while (num == 0) {
    while (! Serial.available());
    num = Serial.parseInt();
  }
  return num;
}

//----RETURN NUM-------------------//


uint8_t deleteFingerprint(uint8_t id) {
  uint8_t p = -1;

  p = finger.deleteModel(id);

  if (p == FINGERPRINT_OK) {
    Serial.println("Deleted!");
  } else if (p == FINGERPRINT_PACKETRECIEVEERR) {
    Serial.println("Communication error");
    return p;
  } else if (p == FINGERPRINT_BADLOCATION) {
    Serial.println("Could not delete in that location");
    return p;
  } else if (p == FINGERPRINT_FLASHERR) {
    Serial.println("Error writing to flash");
    return p;
  } else {
    Serial.print("Unknown error: 0x"); Serial.println(p, HEX);
    return p;
  }
}