#include <LiquidCrystal_I2C.h> 
#include <Servo.h>

LiquidCrystal_I2C lcd(0x27, 16, 2)
;Servo myservo;
int val;
void LCDUpdate(int val){
  lcd.setCursor(10,0);
  lcd.print(val);
  lcd.print(" ");
  lcd.backlight();
 
}
void setup() {
  myservo.attach(3);
   lcd.begin(16, 2);
    lcd.print("Sudut = ");
   lcd.setCursor(0,1);
 
}
void loop() {  
 for(val = 0; val <= 180; val += 45){
	myservo.write(val);
	LCDUpdate(val);
	delay(1000);
	} 
	for(val = 180; val >= 0; val -= 45){                       
	myservo.write(val);
	LCDUpdate(val);
	delay(1000);
  }  }