#include <Servo.h>
const int PIN_SERVO = 3;
Servo motorServo;
int potensiometer = A0;
int nilaiServo = 0;

void setup() 
{
  motorServo.attach(PIN_SERVO);
}

void loop() 
{
  nilaiServo = analogRead(potensiometer);
  nilaiServo = map(nilaiServo, 0, 1023, 0, 180);
  motorServo.write(nilaiServo);
}