// Pin SDA de LCD 16x2 I2C con pin A4
// Pin SCL de LCD 16x2 I2C con pin A5

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

LiquidCrystal_I2C lcd(0x27,16,2);
int potpin = A0;
int servopin = 3;
Servo myservo;

void setup() {
  // put your setup code here, to run once:
  myservo.attach(servopin);

  lcd.init();
  lcd.backlight();

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("  Praktek ADC  ");    
  lcd.setCursor(0,1);
  lcd.print("  M. Zulfikri  "); 
  delay(1000);                
}

void loop() {
  // put your main code here, to run repeatedly:
  // Baca nilai potensiometer
  int val = analogRead(potpin);

  // Konversi nilai potensiometer ke sudut servo
  val = map(val, 0, 1023, 0, 180);

  // Gerak motor servo ke sudut yang sesuai
  myservo.write(val);

  // Tampilkan nilai potensiometer dan sudut servo ke LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Sudut Derajat");
  lcd.setCursor(0, 1);
  lcd.print("Servo: "); 
  lcd.print(myservo.read()); 
  delay(1000);
}