#include <Wire.h>
#include <LiquidCrystal_I2C.h>

const int trigPin = 12;
const int echoPin = 11;
const int lcdAddr = 0x27;


LiquidCrystal_I2C lcd(lcdAddr, 16, 2);

void setup() {
  Serial.begin(9600);
  
  
  lcd.begin(16, 2);
  lcd.print("Distance:");

  
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}

void loop() {
  
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  
  
  long duration = pulseIn(echoPin, HIGH);
  int distance = duration * 0.034 / 2;

  
  lcd.setCursor(0, 1);
  lcd.print("            ");  
  lcd.setCursor(0, 1);
  lcd.print("Distance: " + String(distance) + " cm");

  
  delay(500);
}