/* Webpage: https://www.electronoobs.com/eng_arduino_tut41.php
* Schematic: https://www.electronoobs.com/eng_arduino_tut40_sch1.php
* Code: https://www.electronoobs.com/eng_arduino_tut40_code3.php
* Youtube Channel: https://www.youtube.com/c/Electronoobs */
////////////////////////////////////INCLUDE ALL LIBRARIES/////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4); //sometimes the adress is not 0x3f. Change to 0x27 if it dosn't work.
//Fingerprint libraries
#include <Adafruit_Fingerprint.h>
#include <SoftwareSerial.h>
int getFingerprintIDez();
SoftwareSerial mySerial(10, 11); // pin #2 is IN from sensor (GREEN wire)/ pin #3 is OUT from arduino (WHITE wire)
Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);
//Real time clock libraries
#include <DS3231.h>
DS3231 rtc(SDA, SCL);// Init the DS3231 using the hardware interface
//SD card read/write libraries
#include <SPI.h>
#include <SD.h>
File myFile;
//servo library
#include <Servo.h>
Servo miServo;
/////////////////////////////////////Input and outputs////////////////////////////////////////////////
int scan_pin = 13; //Pin for the scan push button
int add_id_pin = 12; //Pin for the add new ID push button
int close_door = 9; //Pin to close the door button
int green_led = 8; //Extra LEDs for open or close door labels
int red_led = 7;
int servo = 6; //Pin for the Servo PWM signal
//////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////Editable variables//////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////
int main_user_ID = 1; //Change this value if you want a different main user
int door_open_degrees = 180;
int door_close_degrees = 0;
String file_name_to_save = "blackBox.txt";
//////////////////////////////////////////////////////////////////////////////////////////////////////
//Other used variables in the code. Do not change!
bool scanning = false;
int counter = 0;
int id_ad_counter = 0;
bool id_ad = false;
uint8_t num = 1;
bool id_selected = false;
uint8_t id;
bool first_read = false;
bool main_user = false;
bool add_new_id = false;
bool door_locked = true;
void setup() {
Serial.begin(57600); //Start serial communication for fingerprint TX RX data.
rtc.begin(); //Start the real time clock (remember to set time before this code)
SD.begin(53); //Start SD card module with CS pin connected to D53 of the Arduino MEGA. The other pins are SPI pins
/*Now we open the new created file, write the data, and close it back*/
myFile = SD.open(file_name_to_save, FILE_WRITE); //Create a new file on the SD card named before
myFile.print("Door lock system started at ");
myFile.print(rtc.getTimeStr()); myFile.print(" and day "); myFile.print(rtc.getDateStr());
myFile.println(" ");myFile.println(" ");
myFile.close();
lcd.init(); //Init the LCD with i2c communication and print text
lcd.backlight();
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door locked- ");
//Define pins as outputs or inputs
pinMode(scan_pin,INPUT);
pinMode(add_id_pin,INPUT);
pinMode(close_door,INPUT);
miServo.attach(servo);
miServo.write(door_close_degrees); //Door close
digitalWrite(red_led,HIGH); //Red LED turned ON, shows door CLOSED
digitalWrite(green_led,LOW); //Green LED turned OFF
finger.begin(57600); // set the data rate for the sensor serial port
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////VOID LOOP////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////
void loop() {
/////////////////////////////////////////DOOR CLOSE BUTTON PRESSED///////////////////////////////////
if(digitalRead(close_door))
{
door_locked = true;
miServo.write(door_close_degrees); //Door close
digitalWrite(red_led,HIGH); //Red LED turned ON, shows door CLOSED
digitalWrite(green_led,LOW); //Green LED turned OFF
lcd.setCursor(0,0);
lcd.print(" Door closed! ");
lcd.setCursor(0,1);
lcd.print(" ");
delay(2000);
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door locked- ");
myFile = SD.open(file_name_to_save, FILE_WRITE);
myFile.print(rtc.getDateStr()); myFile.print(" -- "); myFile.print(rtc.getTimeStr());
myFile.println(" -- Door was closed by a user");
myFile.close();
}
////////////////////////////////Scan button pressed/////////////////////////////////////////////////
if(digitalRead(scan_pin) && !id_ad)
{
myFile = SD.open(file_name_to_save, FILE_WRITE);
myFile.print(rtc.getDateStr()); myFile.print(" -- "); myFile.print(rtc.getTimeStr());
myFile.println(" -- Attempt of openning door");
myFile.close();
scanning = true;
lcd.setCursor(0,0);
lcd.print(" Place finger ");
lcd.setCursor(0,1);
lcd.print("SCANNING--------");
}
while(scanning && counter <= 60)
{
getFingerprintID();
delay(100);
counter = counter + 1;
if(counter == 10)
{
lcd.setCursor(0,0);
lcd.print(" Place finger ");
lcd.setCursor(0,1);
lcd.print("SCANNING ------");
}
if(counter == 20)
{
lcd.setCursor(0,0);
lcd.print(" Place finger ");
lcd.setCursor(0,1);
lcd.print("SCANNING ----");
}
if(counter == 40)
{
lcd.setCursor(0,0);
lcd.print(" Place finger ");
lcd.setCursor(0,1);
lcd.print("SCANNING --");
}
if(counter == 50)
{
lcd.setCursor(0,0);
lcd.print(" Place finger ");
lcd.setCursor(0,1);
lcd.print("SCANNING ");
}
if(counter == 59)
{
lcd.setCursor(0,0);
lcd.print(" Timeout! ");
lcd.setCursor(0,1);
lcd.print(" Try again! ");
myFile = SD.open(file_name_to_save, FILE_WRITE);
myFile.print(rtc.getDateStr()); myFile.print(" -- "); myFile.print(rtc.getTimeStr());
myFile.println(" -- Scanning timeout!");
myFile.close();
delay(2000);
if(door_locked)
{
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door locked- ");
}
else
{
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door open- ");
}
}
}
scanning = false;
counter = 0;
///////////////////////////////END WITH SCANNING PART
//////////////////////////////////////////Add new button pressed///////////////////////////////////////////
if(digitalRead(add_id_pin) && !id_ad)
{
myFile = SD.open(file_name_to_save, FILE_WRITE);
myFile.print(rtc.getDateStr()); myFile.print(" -- "); myFile.print(rtc.getTimeStr());
myFile.println(" -- Add new user attempt. Require identification!");
myFile.close();
add_new_id = true;
lcd.setCursor(0,0);
lcd.print(" Scan main user ");
lcd.setCursor(0,1);
lcd.print(" finger first! ");
while (id_ad_counter < 40 && !main_user)
{
getFingerprintID();
delay(100);
id_ad_counter = id_ad_counter+1;
if(!add_new_id)
{
id_ad_counter = 40;
}
}
id_ad_counter = 0;
add_new_id = false;
if(main_user)
{
lcd.setCursor(0,0);
lcd.print(" Add new ID# to ");
lcd.setCursor(0,1);
lcd.print(" the database ");
delay(1500);
print_num(num);
id_ad = true;
myFile = SD.open(file_name_to_save, FILE_WRITE);
myFile.print(rtc.getDateStr()); myFile.print(" -- "); myFile.print(rtc.getTimeStr());
myFile.println(" -- Add new user permission granted");
myFile.close();
}
else
{
lcd.setCursor(0,0);
lcd.print("ERROR! Only main");
lcd.setCursor(0,1);
lcd.print("user can add IDs");
delay(1500);
if(door_locked)
{
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door locked- ");
}
else
{
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door open- ");
}
id_ad = false;
myFile = SD.open(file_name_to_save, FILE_WRITE);
myFile.print(rtc.getDateStr()); myFile.print(" -- "); myFile.print(rtc.getTimeStr());
myFile.println(" -- The user does not have permission to add new user");
myFile.close();
}
}
if(digitalRead(scan_pin) && id_ad)
{
id=num;
while (! getFingerprintEnroll() );
id_ad = false;
lcd.clear();
lcd.setCursor(0,0);
lcd.print(" New ID saved ");
lcd.setCursor(4,1);
lcd.print("as ID #");
lcd.setCursor(11,1);
lcd.print(id);
delay(3000);
if(door_locked)
{
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door locked- ");
}
else
{
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door open- ");
}
add_new_id = false;
main_user = false;
id_ad = false;
}
if(digitalRead(add_id_pin) && id_ad)
{
num = num + 1;
if(num > 16)
{
num=1;
}
print_num(num);
}
}//end of void
//////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////
/*This function will print the ID numbers when adding new ID*/
void print_num(uint8_t)
{
if (num == 1)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(">1 2 3 4 ");
delay(500);
}
if (num == 2)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 1 >2 3 4 ");
delay(500);
}
if (num == 3)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 1 2 >3 4 ");
delay(500);
}
if (num == 4)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 1 2 3 >4 ");
delay(500);
}
if (num == 5)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(">5 6 7 8 ");
delay(500);
}
if (num == 6)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 5 >6 7 8 ");
delay(500);
}
if (num == 7)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 5 6 >7 8 ");
delay(500);
}
if (num == 8)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 5 6 7 >8 ");
delay(500);
}
if (num == 9)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(">9 10 11 12 ");
delay(500);
}
if (num == 10)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 9 >10 11 12 ");
delay(500);
}
if (num == 11)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 9 10 >11 12 ");
delay(500);
}
if (num == 12)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 9 10 11 >12 ");
delay(500);
}
if (num == 13)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(">13 14 15 16 ");
delay(500);
}
if (num == 14)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 13 >14 15 16 ");
delay(500);
}
if (num == 15)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 13 14 >15 16 ");
delay(500);
}
if (num == 16)
{
lcd.setCursor(0,0);
lcd.print("Select ID number");
lcd.setCursor(0,1);
lcd.print(" 13 14 15 >16 ");
delay(500);
}
}
/*This function will read the fingerprint placed on the sensor*/
uint8_t getFingerprintID()
{
uint8_t p = finger.getImage();
switch (p)
{
case FINGERPRINT_OK:
break;
case FINGERPRINT_NOFINGER: return p;
case FINGERPRINT_PACKETRECIEVEERR: return p;
case FINGERPRINT_IMAGEFAIL: return p;
default: return p;
}
// OK success!
p = finger.image2Tz();
switch (p)
{
case FINGERPRINT_OK: break;
case FINGERPRINT_IMAGEMESS: return p;
case FINGERPRINT_PACKETRECIEVEERR: return p;
case FINGERPRINT_FEATUREFAIL: return p;
case FINGERPRINT_INVALIDIMAGE: return p;
default: return p;
}
// OK converted!
p = finger.fingerFastSearch();
if (p == FINGERPRINT_OK)
{
scanning = false;
counter = 0;
if(add_new_id)
{
if(finger.fingerID == main_user_ID)
{
main_user = true;
id_ad = false;
}
else
{
add_new_id = false;
main_user = false;
id_ad = false;
}
}
else
{
miServo.write(door_open_degrees); //degrees so door is open
digitalWrite(red_led,LOW); //Red LED turned OFF
digitalWrite(green_led,HIGH); //Green LED turned ON, shows door OPEN
lcd.clear();
lcd.setCursor(0,0);
lcd.print(" User match ");
lcd.setCursor(0,1);
lcd.print(" ID: #");
lcd.setCursor(6,1);
lcd.print(finger.fingerID);
lcd.setCursor(9,1);
lcd.print("%: ");
lcd.setCursor(12,1);
lcd.print(finger.confidence);
myFile = SD.open(file_name_to_save, FILE_WRITE);
myFile.print(rtc.getDateStr()); myFile.print(" -- "); myFile.print(rtc.getTimeStr());
myFile.print(" -- User match for ID# "); myFile.print(finger.fingerID);
myFile.print(" with confidence: "); myFile.print(finger.confidence); myFile.println(" - door open");
myFile.close();
door_locked = false;
delay(4000);
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door open- ");
delay(50);
}
}//end finger OK
else if(p == FINGERPRINT_NOTFOUND)
{
scanning = false;
id_ad = false;
counter = 0;
lcd.setCursor(0,0);
lcd.print(" No match ");
lcd.setCursor(0,1);
lcd.print(" Try again! ");
add_new_id = false;
main_user = false;
myFile = SD.open(file_name_to_save, FILE_WRITE);
myFile.print(rtc.getDateStr()); myFile.print(" -- "); myFile.print(rtc.getTimeStr());
myFile.print(" -- No match for any ID. Door status still the same");
myFile.close();
delay(2000);
if(door_locked)
{
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door locked- ");
}
else
{
lcd.setCursor(0,0);
lcd.print(" Press SCAN ");
lcd.setCursor(0,1);
lcd.print(" -door open- ");
}
delay(2);
return p;
}//end finger error
}// returns -1 if failed, otherwise returns ID #
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!
return finger.fingerID;
}
//////////////////////////////////////////
/*This function will add new ID to the database*/
uint8_t getFingerprintEnroll() {
int p = -1;
if(!first_read)
{
lcd.setCursor(0,0);
lcd.print("Add new as ID# ");
lcd.setCursor(14,0);
lcd.print(id);
lcd.setCursor(0,1);
lcd.print(" Place finger ");
}
while (p != FINGERPRINT_OK) {
p = finger.getImage();
switch (p) {
case FINGERPRINT_OK:
lcd.setCursor(0,0);
lcd.print(" Image taken! ");
lcd.setCursor(0,1);
lcd.print(" ");
delay(100);
first_read = true;
break;
case FINGERPRINT_NOFINGER:
lcd.setCursor(0,0);
lcd.print("Add new as ID# ");
lcd.setCursor(14,0);
lcd.print(id);
lcd.setCursor(0,1);
lcd.print(" Place finger ");
break;
case FINGERPRINT_PACKETRECIEVEERR:
lcd.setCursor(0,0);
lcd.print(" Comunication ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
break;
case FINGERPRINT_IMAGEFAIL:
lcd.setCursor(0,0);
lcd.print(" -Image ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
break;
default:
lcd.setCursor(0,0);
lcd.print(" -Unknown ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
break;
}
}
// OK success!
p = finger.image2Tz(1);
switch (p) {
case FINGERPRINT_OK:
lcd.setCursor(0,0);
lcd.print("Image converted!");
lcd.setCursor(0,1);
lcd.print(" ");
break;
case FINGERPRINT_IMAGEMESS:
lcd.setCursor(0,0);
lcd.print("Image too messy!");
lcd.setCursor(0,1);
lcd.print(" ");
delay(1000);
return p;
case FINGERPRINT_PACKETRECIEVEERR:
lcd.setCursor(0,0);
lcd.print(" Comunication ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
return p;
case FINGERPRINT_FEATUREFAIL:
lcd.setCursor(0,0);
lcd.print(" No fingerprint ");
lcd.setCursor(0,1);
lcd.print("features found ");
delay(1000);
return p;
case FINGERPRINT_INVALIDIMAGE:
lcd.setCursor(0,0);
lcd.print(" No fingerprint ");
lcd.setCursor(0,1);
lcd.print("features found ");
delay(1000);
return p;
default:
lcd.setCursor(0,0);
lcd.print(" -Unknown ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
return p;
}
lcd.setCursor(0,0);
lcd.print(" Remove finger! ");
lcd.setCursor(0,1);
lcd.print(" ");
delay(2000);
p = 0;
while (p != FINGERPRINT_NOFINGER) {
p = finger.getImage();
}
lcd.setCursor(0,1);
lcd.print("ID# ");
lcd.setCursor(4,1);
lcd.print(id);
p = -1;
lcd.setCursor(0,0);
lcd.print("Place again the ");
lcd.setCursor(0,1);
lcd.print("same finger ");
while (p != FINGERPRINT_OK) {
p = finger.getImage();
switch (p) {
case FINGERPRINT_OK:
lcd.setCursor(0,0);
lcd.print(" Image taken! ");
lcd.setCursor(0,1);
lcd.print(" ");
break;
case FINGERPRINT_NOFINGER:
lcd.setCursor(0,0);
lcd.print("Place again the ");
lcd.setCursor(0,1);
lcd.print("same finger ");
break;
case FINGERPRINT_PACKETRECIEVEERR:
lcd.setCursor(0,0);
lcd.print(" Comunication ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
break;
case FINGERPRINT_IMAGEFAIL:
lcd.setCursor(0,0);
lcd.print(" -Image ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
break;
default:
lcd.setCursor(0,0);
lcd.print(" -Unknown ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
break;
}
}
// OK success!
p = finger.image2Tz(2);
switch (p) {
case FINGERPRINT_OK:
lcd.setCursor(0,0);
lcd.print("Image converted!");
lcd.setCursor(0,1);
lcd.print(" ");
break;
case FINGERPRINT_IMAGEMESS:
lcd.setCursor(0,0);
lcd.print("Image too messy!");
lcd.setCursor(0,1);
lcd.print(" ");
delay(1000);
return p;
case FINGERPRINT_PACKETRECIEVEERR:
lcd.setCursor(0,0);
lcd.print(" Comunication ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
return p;
case FINGERPRINT_FEATUREFAIL:
lcd.setCursor(0,0);
lcd.print(" No fingerprint ");
lcd.setCursor(0,1);
lcd.print("features found ");
delay(1000);
return p;
case FINGERPRINT_INVALIDIMAGE:
lcd.setCursor(0,0);
lcd.print(" Comunication ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
return p;
default:
lcd.setCursor(0,0);
lcd.print(" -Unknown ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
return p;
}
// OK converted!
lcd.setCursor(0,0);
lcd.print(" Creating model ");
lcd.setCursor(0,1);
lcd.print("for ID# ");
lcd.setCursor(8,1);
lcd.print(id);
p = finger.createModel();
if (p == FINGERPRINT_OK) {
lcd.setCursor(0,0);
lcd.print(" Print matched! ");
lcd.setCursor(0,1);
lcd.print(" ");
delay(1000);
} else if (p == FINGERPRINT_PACKETRECIEVEERR) {
lcd.setCursor(0,0);
lcd.print(" Comunication ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
return p;
} else if (p == FINGERPRINT_ENROLLMISMATCH) {
lcd.setCursor(0,0);
lcd.print("Fingerprint did ");
lcd.setCursor(0,1);
lcd.print("not match ");
delay(1000);
return p;
} else {
lcd.setCursor(0,0);
lcd.print(" -Unknown ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
return p;
}
lcd.setCursor(0,1);
lcd.print("ID# ");
lcd.setCursor(4,1);
lcd.print(id);
p = finger.storeModel(id);
if (p == FINGERPRINT_OK) {
lcd.setCursor(0,0);
lcd.print(" Stored ");
lcd.setCursor(0,1);
lcd.print(" ");
myFile = SD.open(file_name_to_save, FILE_WRITE);
myFile.print(rtc.getDateStr()); myFile.print(" -- "); myFile.print(rtc.getTimeStr());
myFile.print(" -- New fingerprint stored for ID# "); myFile.println(id);
myFile.close();
delay(1000);
first_read = false;
id_ad = false;
} else if (p == FINGERPRINT_PACKETRECIEVEERR) {
lcd.setCursor(0,0);
lcd.print(" Comunication ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
return p;
} else if (p == FINGERPRINT_BADLOCATION) {
lcd.setCursor(0,0);
lcd.print("Could not store ");
lcd.setCursor(0,1);
lcd.print("in that location");
delay(1000);
return p;
} else if (p == FINGERPRINT_FLASHERR) {
lcd.setCursor(0,0);
lcd.print("Error writing to");
lcd.setCursor(0,1);
lcd.print("flash ");
delay(1000);
return p;
} else {
lcd.setCursor(0,0);
lcd.print(" -Unknown ");
lcd.setCursor(0,1);
lcd.print(" ERROR! ");
delay(1000);
return p;
}
}
