#define PIN_TRIG 3
#define PIN_ECHO 2

#include <LiquidCrystal_I2C.h>
#define I2C_ADDR  0x27
LiquidCrystal_I2C lcd(I2C_ADDR, 16, 2);

void setup() {
  Serial.begin(115200);
  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);
  lcd.init();
  lcd.backlight();

  lcd.setCursor(0, 0);
  lcd.print("program start<<");
  delay(1000);
  lcd.clear();
}

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

  // Read the result:
  int duration = pulseIn(PIN_ECHO, HIGH);
  Serial.print("Distance in CM: ");
  Serial.println(duration / 58);
  lcd.setCursor(0,0);
  lcd.print("Distan : ");
  lcd.setCursor(9,0);
  lcd.print(duration / 58);
  lcd.setCursor(13,0);
  lcd.print("cm.");
  // Serial.print("Distance in inches: ");
  // Serial.println(duration / 148);
  delay(1000);

}