#include<LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
float x;float Distance;
const int Ttigger=12; const int Echo=11;
void setup() {
pinMode(Ttigger,OUTPUT);
pinMode(Echo,INPUT);
Serial.begin(9600);
  lcd.init();                    
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Arduino Ultrasonic");delay(2000);
  lcd.setCursor(0, 1);
  lcd.print("by ielectrony");
  delay(2000);
  lcd.clear();
  lcd.print("Ultrasonic Test");
  lcd.setCursor(0, 1);delay(5000);
}

void loop() {
  digitalWrite(Ttigger,LOW);
  delayMicroseconds(2);
  digitalWrite(Ttigger,HIGH);
  delayMicroseconds(10);
  digitalWrite(Ttigger,LOW);
  x=pulseIn(Echo,HIGH);
  Distance=x*0.034/2;
  Serial.println(Distance);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Distance is ");
  lcd.setCursor(14, 1);
  lcd.print(Distance);
  delay(1000); 
 
}