#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

int pump = 2;
int temp_sensor = 6;

// Pass our oneWire reference to Dallas Temperature sensor 
OneWire oneWirePin(temp_sensor);
DallasTemperature sensors(&oneWirePin);

float temperature = 0;
int higherLimit = 35;

void setup() {
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
  lcd.clear();

  pinMode(pump, OUTPUT);

  lcd.setCursor(0, 0);
  lcd.print("ROOF COOLING");
  lcd.setCursor(0, 1);
  lcd.print("SYSTEM IS ON ");

  delay(2000);

  sensors.begin();
}

void loop() {
  int value = analogRead(A0);
  // Call sensors.requestTemperatures() to issue a global temperature and Requests to all devices on the bus
  sensors.requestTemperatures(); 
  temperature = sensors.getTempCByIndex(0);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("ROOF TEMP: ");
  lcd.print(temperature); 

  lcd.setCursor(0, 1);
  lcd.print("W LEVEL :");
  Serial.println(value);


  if (value == 0) {
    lcd.print("EMPTY ");
  } else if (value > 1 && value < 350) {
    lcd.print("LOW   ");
  } else if (value > 350 && value < 510) {
    lcd.print("MEDIUM");
  } else if (value > 510){
    lcd.print("HIGH  ");
  }

  if (temperature >= higherLimit) {
    digitalWrite(pump, HIGH);
  }

  else {
    digitalWrite(pump, LOW);
  }
}