#include<Wire.h>
#include<Servo.h>
#include<LiquidCrystal.h>
#include<LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
Servo myservo;
int pos = 0;
void setup() {
  // put your setup code here, to run once:
  lcd.init();
  lcd.backlight();
  myservo.attach(9);
}

void loop() {
  // put your main code here, to run repeatedly.
  lcd.setCursor(0,0);
  lcd.print("Hello World");
  lcd.scrollDisplayLeft();
  delay(250);
  for(pos = 0; pos<=180; pos+=1){
    myservo.write(pos);
    delay(15);
  }
  for(pos = 180; pos>=0; pos-=1){
    myservo.write(pos);
    delay(15);
  }
}