#define ADC_IN A5
#define ADC_REF 3.3
#define Buzzer 4
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup()
{
 lcd.init();
 lcd.backlight();
 lcd.setCursor(2,0);
 lcd.print("Hi");
 lcd.setCursor(0,1);
 lcd.print("Welcome :)");
 delay(400);
 lcd.clear();

 pinMode(23, OUTPUT); 
 pinMode(18, OUTPUT);
 pinMode(19, OUTPUT);

Serial.begin(115200);
pinMode(Buzzer, OUTPUT);
}

void loop()
{
  int adcRes = analogRead( ADC_IN );
  delay(10);

  if (analogRead(ADC_IN) <= 1365) 
  {
    digitalWrite(23, HIGH); 
    digitalWrite(18, LOW);
    digitalWrite(19, HIGH);

    lcd.clear();
    lcd.setCursor(2,0);
    lcd.print("Feed me with");
    lcd.setCursor(1,1);
    lcd.print("your rubbish :)");
    delay(1000);
  }
  else
  {
    digitalWrite(23, HIGH);
    digitalWrite(18, HIGH);
    digitalWrite(19, HIGH);
  }


  if (analogRead(ADC_IN) <= 2730)
  if (analogRead(ADC_IN) > 1365)
  {
    digitalWrite(23, HIGH); 
    digitalWrite(18, HIGH);
    digitalWrite(19, LOW);

    lcd.clear();
    lcd.setCursor(3,0);
    lcd.print("I'm  still");
    lcd.setCursor(3,1);
    lcd.print("hungry  :)");
    delay(1000);
  }
  else
  {
    digitalWrite(23, HIGH);
    digitalWrite(18, HIGH);
    digitalWrite(19, HIGH);
  }


  if (analogRead(ADC_IN) > 2730)
  if (analogRead(ADC_IN) < 4095)
  {
    digitalWrite(23, LOW); 
    digitalWrite(18, HIGH);
    digitalWrite(19, HIGH);

    lcd.clear();
    lcd.setCursor(4,0);
    lcd.print("I'm full");
    lcd.setCursor(2,1);
    lcd.print("Please clear");
    delay(500);
    digitalWrite(Buzzer, HIGH);
    delay(1000);
    digitalWrite(Buzzer, LOW);
  }
  else
  {
    digitalWrite(23, HIGH);
    digitalWrite(18, HIGH);
    digitalWrite(19, HIGH);
  }


}