#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define TrigPin 2
#define EchoPin 3
float d = 0;

LiquidCrystal_I2C lcd(0x27,16,2);

void setup() {
  pinMode(2, OUTPUT);
  pinMode(3, INPUT);
  Serial.begin(9600);
  lcd.init();
}

void loop() {
  digitalWrite(TrigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(TrigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(TrigPin, LOW);

  d = pulseIn(EchoPin,HIGH) * 17/1000;
  Serial.println(String(d)+"cm");
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print(String(d)+"cm");
  



  delay(1000);
}