#include<LiquidCrystal.h>
LiquidCrystal lcd(12,11,10,9,7,1);
int ld1= 2;
int ld2 = 3;
int ld3 = 4;
int ld4 =5;
int buzzer = 6;
int motor = 8;
int l1 = A0;
int l2 = A1;
int l3 = A2;
int l4 = A3;
int st = A4;
int a,e;
int b;
int c;
int d;
int val = 500;
void setup()
{
 
  lcd.begin(16,2);
  pinMode(ld1, OUTPUT);
  pinMode(ld2, OUTPUT);
  pinMode(ld3, OUTPUT);
  pinMode(ld4, OUTPUT);
  pinMode(buzzer, OUTPUT);
  pinMode(motor, OUTPUT);
  pinMode(l1, INPUT);
  pinMode(l2, INPUT);
  pinMode(l3, INPUT);
  pinMode(l4, INPUT);
  pinMode(st, INPUT);
  lcd.setCursor(4,0);
  lcd.print("Welcome");
  delay(1000);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Please wait.");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait..");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait...");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait....");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait.....");
  delay(200);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Please wait.");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait..");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait...");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait....");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait.....");
  delay(200);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Please wait.");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait..");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait...");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait....");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait.....");
  delay(200);
  lcd.setCursor(0,0);
  lcd.print("Please wait.....");
  delay(200);
  lcd.clear();
  lcd.setCursor(3,0);
  lcd.print("Water level");
  lcd.setCursor(4,1);
  lcd.print("indicator");
  delay(2000);
  lcd.clear();
  
}


void loop()
{
 a = analogRead(l1);
  b = analogRead(l2);
  c = analogRead(l3);
  d = analogRead(l4);
  e = analogRead(st);

 if ( a> val && b<val && c<val && d<val && e>val) // level 1
 {
    
    lcd.print("Tank 25% filled");
   lcd.setCursor(2,1);
   lcd.print("Motor is on");
 lcd.clear();
   digitalWrite(ld1,HIGH);
   digitalWrite(motor,HIGH);
 }
  if ( a>val && b>val && c<val && d<val && e>val) // level 2
 {
     
    lcd.print("Tank 50% filled");
     lcd.setCursor(2,1);
   lcd.print("Motor is on");
     lcd.clear();
   digitalWrite(ld1,HIGH);
    digitalWrite(ld2,HIGH);
   digitalWrite(motor,HIGH);
 }
  if ( a>val && b>val && c>val && d<val && e>val) // level 3
 {
    lcd.clear();
    lcd.print("Tank 75% filled");
     lcd.setCursor(2,1);
   lcd.print("Motor is on");
   delay(3000);
   digitalWrite(ld1,HIGH);
    digitalWrite(ld2,HIGH);
     digitalWrite(ld3,HIGH);
   digitalWrite(motor,HIGH);
 }
  if ( a>val && b>val && c>val && d>val )
 {
   
    lcd.print("Tank 100% filled");
     lcd.setCursor(2,1);
   lcd.print("Motor is off");
     lcd.clear();
    digitalWrite(motor,LOW);
   digitalWrite(ld1,HIGH);
    digitalWrite(ld2,HIGH);
        digitalWrite(ld3,HIGH);
    digitalWrite(ld4,HIGH);
    digitalWrite(buzzer,HIGH);
    delay(200);
     digitalWrite(buzzer,LOW);
    delay(200);
    digitalWrite(buzzer,HIGH);
    delay(200);
     digitalWrite(buzzer,LOW);
    delay(200);
    digitalWrite(buzzer,HIGH);
    delay(200);
     digitalWrite(buzzer,LOW);
    delay(200);
    digitalWrite(buzzer,HIGH);
    delay(200);
     digitalWrite(buzzer,LOW);
    delay(200);
    digitalWrite(buzzer,HIGH);
    delay(200);
     digitalWrite(buzzer,LOW);
    delay(200);
   
 }
  
}