#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);
  // Task-2 ⬇️
int time = 0;
int distance = 0;
int echo = 11;
int trigger = 12;
  // Task-2 ⬆️
void setup() {
  // put your setup code here, to run once:

  // Task-2 ⬇️
  pinMode(echo, INPUT);
  pinMode(trigger, OUTPUT);
  // Task-2 ⬆️

  lcd.init();
  lcd.backlight();
  Serial.begin(9600);
  lcd.begin(16, 2);
  lcd.setCursor(0,0);
  lcd.print("Hello, World");
  delay(2000);
}

void loop() {
  // put your main code here, to run repeatedly:
  // Task-2 ⬇️
  lcd.clear();
  digitalWrite(trigger, LOW);
  digitalWrite(trigger, HIGH);
  time = pulseIn(echo, HIGH);
  distance = 0.0172 * time;
  lcd.setCursor(5,0);
  lcd.print(distance);
  lcd.print("cm");
  delay(1000);
  // Task-2 ⬆️
}