finalcode.pde

/*Tony Z.'s BlueStamp 2020 Fingerprint ID With Safe code */

#include "Adafruit_Keypad.h"
#include <Password.h>
#include <Servo.h> 
#include <SoftwareSerial.h>
#include <Adafruit_Fingerprint.h>

#define KEYPAD_PID3844

#define R1    2
#define R2    3
#define R3    4
#define R4    5 
#define C1    8
#define C2    9
#define C3    10
#define C4    7 

#include "keypad_config.h"

Adafruit_Keypad customKeypad = Adafruit_Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS);

  #define LOCKED 2
  #define PASSWORD_OK 1
  #define UNLOCKED 0

  int LockState = LOCKED;
  long StartTime = 0;
  /// Variables for Password code
  Password password = Password("1234");
  int counter = 0;
  Servo servo1;
  boolean passwordJustEntered = false;
  boolean passwordWasWrong = false;
  boolean fingerprintWasWrong = false;
  boolean safeIsUnlocked = false;
  int getFingerprintIDez();
  SoftwareSerial mySerial(11, 12);
  Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);

void setup() {
  Serial.begin(9600);
  customKeypad.begin();
  servo1.attach(6);

  // Initialize state and communications
   setLockState(LOCKED); 
   Serial.begin(9600); 
   finger.begin(57600);
   //servo1.write(270);
  // Connect to the sensor
   if (finger.verifyPassword()) {
      Serial.println("Found fingerprint sensor :)");
   } 
   else {
      Serial.println("Did not find fingerprint sensor :(");
   }
}


void loop() {
  customKeypad.tick();
  while(customKeypad.available()){
    keypadEvent e = customKeypad.read();
                
     if((e.bit.EVENT) == KEY_JUST_PRESSED) {
        if(passwordJustEntered == false){
          Serial.println((char)e.bit.KEY);
          password.append((char)e.bit.KEY);
          counter++;
        } else if((passwordJustEntered == true)) {
          if((char)(e.bit.KEY) == '*' && safeIsUnlocked == true) {
            Serial.println((char)e.bit.KEY);
            Serial.println("The safe has been relocked because you pressed *.");
            servo1.write(90);
            setLockState(LOCKED);
            password.reset();
            counter = 0;
            safeIsUnlocked = false;
          }
          if(passwordWasWrong = true) {
          passwordWasWrong = false;
        }
        if(fingerprintWasWrong = true) {
          fingerprintWasWrong = false;
        }
        passwordJustEntered = false;
       } 
     }     
     //a password is entered
     if(counter == 4) {
         passwordJustEntered = true;
         if((password.evaluate()?"true":"false") == "true") {
           setLockState(PASSWORD_OK);
           Serial.println("got into true password loop");
             if(LockState == PASSWORD_OK) {
              Serial.println("got into LockState == passwordok loop, 5 second delay until fingerprint scan");
              delay(5000);
               if(getFingerprintIDez() != -1) {
                  // Valid fingerprint - advance state to UNLOCKED
                  setLockState(UNLOCKED);
                  Serial.println("The fingerprint did match, the safe is now unlocked");
                  safeIsUnlocked = true;
                  servo1.write(0);
                } else if(getFingerprintIDez() == -1){
                  // Invalid fingerprint
                  fingerprintWasWrong = true;
                  Serial.println("The fingerprint did not match");
                  setLockState(LOCKED);
                }
                if (millis () - StartTime > 5000) {
                  setLockState(LOCKED); // Time-out - go back to the LOCKED state
                } 
             } 
        } else {
           passwordWasWrong = true;
           Serial.println("The password was incorrect.");
           setLockState(LOCKED);
         }
         counter = 0;
         password.reset();
     }  
  delay(10);
  } // end of while loop
} // end of void loop() loop

//methods from safeTutorial
//scans fingerprint and returns ID and confidence #
int getFingerprintIDez() {
   uint8_t p = finger.getImage();
   if (p != FINGERPRINT_OK)  return -1;
   
   p = finger.image2Tz();
   
   if (p != FINGERPRINT_OK)  return -1;

   p = finger.fingerFastSearch();
   
   if (p != FINGERPRINT_OK)  return -1;

   // found a match!
   Serial.print("Found ID #"); Serial.print(finger.fingerID); 
   Serial.print(" with confidence of "); Serial.println(finger.confidence);
   return finger.fingerID; 
}

void setLockState(int state) {
   LockState = state;
   StartTime = millis();
   if (state == LOCKED) {
      Serial.println("Safe is currently locked.");
   } else if (state == PASSWORD_OK) {
      Serial.println("Password is ok!");
   } else if (state == UNLOCKED) {
      Serial.println("Password and Keypad are ok, Safe is now unlocked!");    
   }
}