#define Bomba 13
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int trig = 9;
const int echo = 10;



void setup() {
Serial.begin(115200);
lcd.init();
lcd.backlight();
  
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);

  lcd.setCursor(0, 0);
  lcd.print("Bomba automatica");
  delay(2000);
  lcd.clear();
}

void loop() {

int duration, distance;


  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);

  duration = pulseIn(echo, HIGH);

  distance = duration * 0.034 / 2;

if(distance <= 15){
  digitalWrite(Bomba, HIGH);
   lcd.setCursor(0, 0);
  lcd.print("Tanque vazio");
}

if(distance >= 98){
  digitalWrite(Bomba, LOW);
  lcd.setCursor(0, 0);
  lcd.print("Tanque cheio");

}



lcd.setCursor(0, 1);
  lcd.print("Agua:");
  lcd.print(distance);
  lcd.print(" %");
}