#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define trig 16
#define echo 4
long tempo;
LiquidCrystal_I2C LCD(0x27,16,2);


void setup() 
{
  Serial.begin(115200);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  LCD.init ();
  LCD.backlight();
  LCD.setCursor(0,0);
  LCD.print ("É OS GURI");
  LCD.setCursor(0,1);
  LCD.print ("tec.mecatronica");
  delay (1000);
  LCD.clear();
}

void loop() 
{
  LCD.setCursor(0,0);
  LCD.print (tempo * 0.017 );
  LCD.setCursor(0,1);
  LCD.print ("medida em cm");
  digitalWrite(trig , HIGH);
  delayMicroseconds(10);
  digitalWrite(trig , LOW);
  tempo = pulseIn(echo,HIGH);
  Serial.println(tempo * 0.017);
  delay(500);
  
}