#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Ultrasonic.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
Ultrasonic ultrasonic(40, 39);
void setup() {
Serial.begin(9600);
lcd.init();
lcd.backlight();
lcd.setCursor(0, 0);
lcd.print("Distance: "); 
}
void loop() {
int distance = ultrasonic.distanceRead(CM);
Serial.print(distance);
Serial.println(" cm");
lcd.setCursor(0, 1);
lcd.print(" ");
lcd.setCursor(0, 1);
lcd.print(distance);
lcd.print(" cm");
delay(100);
}