#include <Wire.h>
#include <LiquidCrystal_I2C.h>

char locked[]="Locked";
char locked1[]="Locked  *";
char locked2[]="Locked  **";
char locked3[]="Locked  ***";
char locked4[]="UNLOCKED";

char unlocked[]="Unlocked";
LiquidCrystal_I2C lcd(0x27,16,2);
int hallSensor1 = 8;
int hallSensor2 = 9;
int hallSensor3 = 10;
int hallSensor4 = 11;
int hallState1 = 0;
int hallState2 = 0;
int hallState3 = 0;
int hallState4 = 0;
int total = 0;
int laser = 12;

void setup()
{
  lcd.init();
  lcd.backlight();
  pinMode(hallSensor1, INPUT);
  pinMode(hallSensor2, INPUT);
  pinMode(laser, OUTPUT);
}

void loop()
{

  hallState1 = digitalRead(hallSensor1);
  hallState2 = digitalRead(hallSensor2);
  hallState3 = digitalRead(hallSensor3);
  hallState4 = digitalRead(hallSensor4);
  total = 0;

  if (hallState1 == LOW) {
    total += 1;
  }
  if (hallState2 == LOW) {
    total += 1;
  }
   if (hallState3 == LOW) {
    total += 1;
  }
   if (hallState4 == LOW) {
    total += 1;
  }
  switch (total){
  case 0:
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print(locked);
    delay(50);
  break;

  case 1:
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print(locked1);
    delay(50);
   break;

   case 2:
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print(locked2);
    delay(50);
   break;

   case 3:
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print(locked3);
    delay(50);
   break;

   case 4:
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print(locked4);
    delay(50);
   break;
  }

}