#include <HCSR04.h>
#include <LiquidCrystal.h>

byte triggerPin = 2;
byte echoPin = 4;
const int rs = 7, en = 8, d4 = 9, d5 = 10, d6 = 11, d7 = 12;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup () {
  Serial.begin(9600);
  HCSR04.begin(triggerPin, echoPin);
  lcd.begin (16, 2); 
  lcd.print ("Distancia : "); 
}

void loop () {
  double* distances = HCSR04.measureDistanceCm();
  
  Serial.println("Distancia");
  Serial.print(distances[0]);
  Serial.println(" cm");
  
  Serial.println("---");
  delay(500);
  lcd.setCursor (0, 1); 
  lcd.print(distances[0]);
  lcd.setCursor (7, 1); 
  lcd.print ("cm"); 
}