#include <Keypad.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(0,1,2,3,4,5)
byte row=4;
byte col=4;
char key[4][4]=
{
 {'1','2','3','A' },
 {'4','5','6','B'},
 {'7','8','9','C'},
 {'*','0','#','D'}
};
byte rowpin[4]={6,7,8,9,};
byte colpin[4]={10,11,12,13};
keypad mykeypad=keypad(makekeymap(keys)),
rowpin,colpin,row,col
string pass;
int c=0;
int a=0;
  void setup() {
  // put your setup code here, to run once:
lcd.begin(16,2);
lcd.print("Gurmeet");
delay(1000);
lcd.clear();
}

void loop() {
  // put your main code here, to run repeatedly:
char key=mykeypad.getkey();
if(key)
{
  pass=pass+key;
  c++;
  if(c>5){lcd.clear(); lcd.print("Access Denid")c=0;}
  lcd.print('*');
  if(key=='A')
  {
    lcd.setCursor(1,0);
    lcd.clear();
    lcd.print("Enter passwoard");
    lcd.setCursor(3,1);
    pass." ";
  }
  elseif(key=='*')
  {
    lcd.clear();
    c=0;
    a=0;
    analogWrite(A1,0);
    analogWrite(21,0);
  }
  if(key=='E')
  {
    lcd.setCursor(3,1);
    lcd.clear();
    if(pass=='1 2 3 4 5')
    {
      lcd.print("Access Granted");
      c=0;
      analogWrite(A0,255);
      analogWrite(A0,255);
      delay(200);
      analogWrite(A0,0);
      analogWrite(A0,0);
    }
    else
    {
      lcd.print("Access Denid..");
      c=0;
      analogWrite(A1,255);
      analogWrite(A2,255);
      delay(200);
      analogWrite(A1,0);
      analogWrite(A2,0);
      a++;
      if(a==0)
      {
       analogWrite(A1,255);
        analogWrite(A1,255);
      }
      }
    }
  }
}
}