int tombol30= 13; 
int tombol60= 12; 
int tombol90= 11;
int tombol120= 10; 
int tombol150= 9;
int tombol180= 8; 
int nilai;

#include <Servo.h>
const int PIN_SERVO = 3;
Servo motorServo;

#include <Wire.h> 
#include  <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup(){
   lcd.init();
  lcd.backlight();
  motorServo.attach(PIN_SERVO);
  pinMode(tombol30, INPUT);
  pinMode(tombol60, INPUT);
  pinMode(tombol90, INPUT);
  pinMode(tombol120, INPUT);
   pinMode(tombol150, INPUT);
  pinMode(tombol180, INPUT);
}

void loop(){
derajat30();
derajat60();
derajat90();
derajat120();
derajat150();
derajat180();
}

void derajat30(){
  nilai= digitalRead(tombol30);

  if(nilai == 1){
    lcd.clear();
    lcd.setCursor(0,0);
  lcd.print("30 Derajat");
  motorServo.write(30);
    }
   
}

void derajat60(){
  nilai= digitalRead(tombol60);

  if(nilai == 1){
    lcd.clear();
    lcd.setCursor(0,0);
  lcd.print("60 Derajat");
  motorServo.write(60);
    }
  
}

void derajat90(){
  nilai= digitalRead(tombol90);

  if(nilai == 1){
    lcd.clear();
    lcd.setCursor(0,0);
  lcd.print("90 Derajat");
  motorServo.write(90);
    }
   }

void derajat120(){
  nilai= digitalRead(tombol120);

  if(nilai == 1){
    lcd.clear();
    lcd.setCursor(0,0);
  lcd.print("120 Derajat");
  motorServo.write(120);
    }
  
}
void derajat150(){
  nilai= digitalRead(tombol150);

  if(nilai == 1){
    lcd.clear();
    lcd.setCursor(0,0);
  lcd.print("150 Derajat");
  motorServo.write(150);
    }
  
}
void derajat180(){
  nilai= digitalRead(tombol180);

  if(nilai == 1){
    lcd.clear();
    lcd.setCursor(0,0);
  lcd.print("180 Derajat");
  motorServo.write(180);
    }
  
}