#include <LiquidCrystal_I2C.h>
#define PIN_TRIG 3
#define PIN_ECHO 2
LiquidCrystal_I2C lcd(0x27,20,4);

void setup()
{
  Serial.begin(115200);
  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);
  
  lcd.init();
  lcd.backlight();
  lcd.setCursor(3,0);
  lcd.print("SITTINON");
  lcd.setCursor(2,1);
}

void loop()
{
  //start a new measurement:
  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);
  Serial.print("distance in inches");
  Serial.println(duration/148);
  lcd.setCursor(2,1);
  lcd.print(duration/58);
}