enrollFingerPrint.cpp

/*
It is a program to register a fingerprint to a microcomputer.
After uploading to the microcomputer, check the output using the serial monitor.
Follow the instructions displayed on the serial monitor to proceed with fingerprint registration.
*/

#include <Adafruit_Fingerprint.h>
#include <HardwareSerial.h>
#include <SoftwareSerial.h>

#define FINGERPRINT_RX_PIN 18
#define FINGERPRINT_TX_PIN 19

SoftwareSerial fingerSerial(FINGERPRINT_RX_PIN, FINGERPRINT_TX_PIN);
//Adafruit_Fingerprint finger = Adafruit_Fingerprint(&Serial2);
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&fingerSerial);

uint8_t id;
 
void setup() {
  Serial.begin(57600);
  fingerSerial.begin(57600);
//  Serial2.begin(115200);
  while (!Serial) { // For Yun/Leo/Micro/Zero/...
    delay(100);
    Serial.println("\n\nAdafruit Fingerprint sensor enrollment");
     
    // set the data rate for the sensor serial port
    finger.begin(57600);
     
    if (finger.verifyPassword()) {
      Serial.println("Found fingerprint sensor!");
    } else {
      Serial.println("Did not find fingerprint sensor :(");
      while (1) { delay(1); }
    }
  }
}
 
uint8_t readnumber(void) {
  uint8_t num = 0;
   
  while (num == 0) {
    while (!Serial.available()) {
      num = Serial.parseInt();
    }
  }
  return num;
}
 
void loop() { // run over and over again
  Serial.println("Ready to enroll a fingerprint!");
  Serial.println("Please type in the ID # (from 1 to 127) you want to save this finger as...");
  id = readnumber();
  if (id == 0) {// ID #0 not allowed, try again!
    return;
  }
  Serial.print("Enrolling ID #");
  Serial.println(id);
   
  while (!getFingerprintEnroll());
}


uint8_t getFingerprintEnroll() { 
  int p = -1;
  Serial.print("Waiting for valid finger to enroll as #"); Serial.println(id);
  while (p != FINGERPRINT_OK) {
    p = finger.getImage();
    switch (p) {
      case FINGERPRINT_OK:
        Serial.println("Image taken");
        break;
      case FINGERPRINT_NOFINGER:
        Serial.print(".");
        break;
      case FINGERPRINT_PACKETRECIEVEERR:
        Serial.println("Communication error at getImage()");
        break;
      case FINGERPRINT_IMAGEFAIL:
        Serial.println("Imaging error");
        break;
      default:
        Serial.println("Unknown error");
        break;
    }
  }
 
  // OK success!

  // センサーに画像を特徴テンプレートに変換するように要求
  p = finger.image2Tz(1);
  switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image converted");
      break;
    case FINGERPRINT_IMAGEMESS:
      Serial.println("Image too messy");
      return p;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error at image2Tz(1)");
      return p;
    case FINGERPRINT_FEATUREFAIL:
      Serial.println("Could not find fingerprint features");
      return p;
    case FINGERPRINT_INVALIDIMAGE:
      Serial.println("Could not find fingerprint features");
      return p;
    default:
      Serial.println("Unknown error");
      return p;
  }
   
  Serial.println("Remove finger");
  delay(2000);
  p = 0;
  while (p != FINGERPRINT_NOFINGER) {
    p = finger.getImage();
  }
  Serial.print("ID "); Serial.println(id);
  p = -1;
  Serial.println("Place same finger again");
  while (p != FINGERPRINT_OK) {
    p = finger.getImage();
    switch (p) {
      case FINGERPRINT_OK:
        Serial.println("Image taken");
        break;
      case FINGERPRINT_NOFINGER:
        Serial.print(".");
        break;
      case FINGERPRINT_PACKETRECIEVEERR:
        Serial.println("Communication error");
        break;
      case FINGERPRINT_IMAGEFAIL:
        Serial.println("Imaging error");
        break;
      default:
        Serial.println("Unknown error");
        break;
    }
  }
 
  // OK success!

  // センサーに画像を特徴テンプレートに変換するように要求
  p = finger.image2Tz(2);
  switch (p) {
    case FINGERPRINT_OK:
      Serial.println("Image converted");
      break;
    case FINGERPRINT_IMAGEMESS:
      Serial.println("Image too messy");
      return p;
    case FINGERPRINT_PACKETRECIEVEERR:
      Serial.println("Communication error at image2Tz(2)");
      return p;
    case FINGERPRINT_FEATUREFAIL:
      Serial.println("Could not find fingerprint features");
      return p;
    case FINGERPRINT_INVALIDIMAGE:
      Serial.println("Could not find fingerprint features");
      return p;
    default:
      Serial.println("Unknown error");
      return p;
  }
 
  // OK converted!
  Serial.print("Creating model for #"); Serial.println(id);

  // センサーに2つのプリント特徴テンプレートを取得してモデルを作成するように依頼
  p = finger.createModel();
  if (p == FINGERPRINT_OK) {
    Serial.println("Prints matched!");
  } else if (p == FINGERPRINT_PACKETRECIEVEERR) {
    Serial.println("Communication error at reateModel()");
    return p;
  } else if (p == FINGERPRINT_ENROLLMISMATCH) {
    Serial.println("Fingerprints did not match");
    return p;
  } else {
    Serial.println("Unknown error");
    return p;
  }
 
  Serial.print("ID "); Serial.println(id);
  // 後に照合するため、計算済みモデルを保存するように依頼
  p = finger.storeModel(id);
  if (p == FINGERPRINT_OK) {
    Serial.println("Stored!");
  } else if (p == FINGERPRINT_PACKETRECIEVEERR) {
    Serial.println("Communication error");
    return p;
  } else if (p == FINGERPRINT_BADLOCATION) {
    Serial.println("Could not store in that location");
    return p;
  } else if (p == FINGERPRINT_FLASHERR) {
    Serial.println("Error writing to flash");
    return p;
  } else {
    Serial.println("Unknown error");
    return p;
  }
}