#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
const int TRIG =6;
const int ECO =5;
int Bass=2;

int DURACION;
int DISTANCIA;

void setup() {
  lcd.begin(16, 2);
  pinMode(TRIG, OUTPUT);
  pinMode(ECO, INPUT);
  pinMode(Bass,OUTPUT);
  // you can now interact with the LCD, e.g.:
  lcd.print("Objeto a: ");
}

void loop() {
  lcd.setCursor(0, 1);
  digitalWrite(TRIG, HIGH);
  digitalWrite(Bass, LOW);
  delay(1);
  digitalWrite(TRIG, LOW);
  DURACION=pulseIn(ECO,HIGH);
  DISTANCIA=DURACION /58.2;
  if (DISTANCIA<=10 && DISTANCIA>=0){
  digitalWrite(Bass, HIGH);
  delay(120);
  }
  lcd.print(DISTANCIA);
  lcd.print(" Cm");
  delay(100);
}