#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
#define Trig 7
#define Echo 6
long width, distance;
void setup() 
{
lcd.init();
lcd.backlight();
Serial.begin(9600);
pinMode(Trig, OUTPUT);
pinMode(Echo, INPUT);

}

void loop() {
lcd.setCursor(0,0);
 digitalWrite(Trig, 0);
 delayMicroseconds(2);
 digitalWrite(Trig, 1);
 delayMicroseconds(10);
 digitalWrite(Trig, 0);
 width= pulseIn(Echo,1);
 distance=width/58.2;
 lcd.print("distance is:");
 lcd.print(distance);
 lcd.println("  cm");
 
}