#include <LiquidCrystal.h>

#define PIN_TRIG 3
#define PIN_ECHO 2

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

void setup() {
  //Serial.begin(115200);
  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);
  lcd.setCursor(2,1);
  lcd.print("Distance in CM: ");
}

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);
  //blank previous reading
  lcd.setCursor(53,3);
  lcd.print("   ");
  lcd.setCursor(53,3);
  lcd.print(duration / 58);

  delay(1000);
}