#include <Servo.h>

Servo myServo;
int pos = 0; // Deklarasikan pos di sini

void setup() {
  pinMode(2, INPUT);
  myServo.attach(3);
}

void loop() {
  if (digitalRead(2) == HIGH) {
    for (pos = 0; pos <= 180; pos += 1) {
      myServo.write(pos);
      delay(5); // Mungkin kamu ingin memperlambat gerakan
    }
    for (pos = 180; pos >= 0; pos -= 1) {
      myServo.write(pos);
      delay(5); // Mungkin kamu ingin memperlambat gerakan
    }
  }
}