#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup(){
  lcd.begin(16, 2);
  Serial.begin(9600);
  pinMode(7, OUTPUT); // 7 = Trig
  pinMode(6, INPUT); // 6 = Echo
  delay(1000);
  lcd.clear();
}

void loop(){
  lcd.print("Distanca");
  lcd.setCursor(0, 1);
  // print the number of seconds since reset:
  digitalWrite(7, HIGH);
  delayMicroseconds(2);
  digitalWrite(7, LOW);
  int pulseWidth = pulseIn(6, HIGH);
  Serial.print("Pulse Width: ");
  Serial.println(pulseWidth);
  long distance = (pulseWidth/29)/2;
  Serial.print("Distance: ");
  Serial.println(distance);
  lcd.print(distance);
  lcd.print(" Cm.");
  delay(1000);
  lcd.clear();
}