enroll.ino

/***************************************************
  This is an example sketch for our optical Fingerprint sensor

  Designed specifically to work with the Adafruit BMP085 Breakout
  ----> http://www.adafruit.com/products/751

  These displays use TTL Serial to communicate, 2 pins are required to
  interface
  Adafruit invests time and resources providing this open source code,
  please support Adafruit and open-source hardware by purchasing
  products from Adafruit!

  Written by Limor Fried/Ladyada for Adafruit Industries.
  BSD license, all text above must be included in any redistribution
 ****************************************************/

#include <Adafruit_Fingerprint.h>

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128  // OLED display width, in pixels
#define SCREEN_HEIGHT 64  // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
#define mySerial Serial2



Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);

uint8_t id;
int up_clicked = 0;
int down_clicked = 0;
void setup() {
  pinMode(19, INPUT_PULLUP);
  pinMode(18, INPUT_PULLUP);
  pinMode(5, INPUT_PULLUP);
  Serial.begin(9600);
  while (!Serial)
    ;  // For Yun/Leo/Micro/Zero/...
  delay(100);
  Serial.println("\n\nAdafruit Fingerprint sensor enrollment");
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {  // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for (;;)
      ;
  }
  delay(2000);

  // 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); }
  }

  Serial.println(F("Reading sensor parameters"));
  finger.getParameters();
  Serial.print(F("Status: 0x"));
  Serial.println(finger.status_reg, HEX);
  Serial.print(F("Sys ID: 0x"));
  Serial.println(finger.system_id, HEX);
  Serial.print(F("Capacity: "));
  Serial.println(finger.capacity);
  Serial.print(F("Security level: "));
  Serial.println(finger.security_level);
  Serial.print(F("Device address: "));
  Serial.println(finger.device_addr, HEX);
  Serial.print(F("Packet len: "));
  Serial.println(finger.packet_len);
  Serial.print(F("Baud rate: "));
  Serial.println(finger.baud_rate);
}

uint8_t readnumber(void) {
  uint8_t id = 0;
  int x = 0;
  Serial.println("Please type in the ID # (from 1 to 127)...");
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0, 10);
  display.println("ENTER ID NUMBER");
  display.display();
  delay(2000);
  while (x == 0) {

    if ((digitalRead(5) == LOW) && up_clicked == 0) {
      id = id + 1;
      up_clicked = 1;
    }
    if ((digitalRead(18) == LOW) && down_clicked == 0) {
      id = id - 1;
      down_clicked = 1;
    }
    if ((digitalRead(5) == HIGH) && up_clicked == 1) {

      up_clicked = 0;
    }
    if ((digitalRead(18) == HIGH) && down_clicked == 1) {

      down_clicked = 0;
    }
    if (digitalRead(19) == LOW) {
      x = 1;
    }
    Serial.println(id);
    display.clearDisplay();
    display.setTextSize(3);
    display.setTextColor(WHITE);
    display.setCursor(0, 10);
    display.println(id);
    display.display();
  }
  delay(50);
  return id;
}

void loop()  // run over and over again
{

  id = readnumber();
  if (id == 0) {  // ID #0 not allowed, try again!
    return;
  }
  Serial.print("Enrolling ID #");
  while (!getFingerprintEnroll(id));
}

uint8_t getFingerprintEnroll(uint8_t id) {

  int p = -1;
  Serial.print("Waiting for valid finger to enroll as #");
  Serial.println(id);
  display.clearDisplay();

  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0, 10);
  display.println("PLACE YOUR FINGER ON SENSOR");
  display.display();
  while (p != FINGERPRINT_OK) {
    p = finger.getImage();
    switch (p) {
      case FINGERPRINT_OK:
        Serial.println("Image taken");
         display.clearDisplay();
      display.setTextSize(1);
      display.setTextColor(WHITE);
      display.setCursor(0, 10);
      display.println("IMAGE TAKEN");
      display.display();
        break;
      case FINGERPRINT_NOFINGER:
        Serial.println(".");
        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!

  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");
      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");
   display.clearDisplay();
      display.setTextSize(1);
      display.setTextColor(WHITE);
      display.setCursor(0, 10);
      display.println("REMOVE FINGER");
      display.display();
  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");
   display.clearDisplay();
      display.setTextSize(1);
      display.setTextColor(WHITE);
      display.setCursor(0, 10);
      display.println("PLACE THE SAME FINGER");
      display.display();
  while (p != FINGERPRINT_OK) {
    p = finger.getImage();
    switch (p) {
      case FINGERPRINT_OK:
        Serial.println("Image taken");
         display.clearDisplay();
      display.setTextSize(1);
      display.setTextColor(WHITE);
      display.setCursor(0, 10);
      display.println("IMAGE TAKEN");
      display.display();
        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!

  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");
      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);

  p = finger.createModel();
  if (p == FINGERPRINT_OK) {
    Serial.println("Prints matched!");
  } else if (p == FINGERPRINT_PACKETRECIEVEERR) {
    Serial.println("Communication error");
    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);
  p = finger.storeModel(id);
  if (p == FINGERPRINT_OK) {
    Serial.println("Stored!");
     display.clearDisplay();
      display.setTextSize(1);
      display.setTextColor(WHITE);
      display.setCursor(0, 10);
      display.println("FINGERPRINT STORED SUCCESSFULLY");
      display.display();
  } 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;
  }
  delay(2000);

  return true;
}