#include <EEPROM.h>

#include <LiquidCrystal.h>
LiquidCrystal lcd(2,3,4,5,6,7);

long duration,inches;
int set_Val,percentage;
bool state,pump;


void setup() 
{
  lcd.begin(16,2);
  lcd.print("WATER LEVEL:");
  lcd.setCursor(0, 1);
  lcd.print("PUMP:OFF MANUAL");

  pinMode(8, OUTPUT);
  pinMode(9, INPUT);
  pinMode(10, INPUT_PULLUP);
  pinMode(11, INPUT_PULLUP);
  pinMode(12, OUTPUT);

  set_val-EEPROM.read(0);
  if(set_val>150)set_val=150;
}
void long()
 {
  digitalWrite(3, LOW);
  delayMicroseconds(2);
  digitalWrite(8, HIGH);
  delayMicroseconds(10);
  digitalWrite(8, LOW);
  duration = pulseIn(9,HIGH);
  inches = microsecondToInches(duration);

  percentage=(set_val-inches)100/set_val;

  lcd.setCursor(12,0);
  if(percentage<0)percentge=0;
  lcd.print(percentage);
  lcd,print("%  ");

  if(percentage<30)
  if(percentage>99)pump=0;
  digitalWrite(12,lpump);

  lcd, setCursor(5,1);
  if(pump ==1)lcd.print("ON");
  else if(pump==0) lcd.print("OFF");

  lcd.setCursor(9,1);
  if(!digitalRead(11))lcd.print("MANUAL");
  else lcd.print("AUtO");

  if(digitalRead(10)&!state&digitalRead(11)){
    state=1;
    set_val=inches;
    EEPROM.write(0,set_val);
  }

  if(digitalRead(10)&!state!digitalRead(11){
    state=1;
    pump=!pump;

  }

  if(digitalRead(10))state=0;


  delay(500);
 }
 long microsecondsToInches(long microseconds ){
  return microseconds / 74 / 2;
 }