#include <Servo.h>

// Pins
const int servoPin = 27;   // D1
const int buttonPin = 6;   // D4

Servo myServo;

// Variables
int state = 0;
int buttonState;
int lastButtonState = HIGH;

void setup() {
  Serial.begin(115200);

  pinMode(buttonPin, INPUT_PULLUP);
  myServo.attach(servoPin, 500, 2400);

  myServo.write(0); // posición inicial
}

void loop() {

  buttonState = digitalRead(buttonPin);

  // Detectar pulsación (flanco)
  if (lastButtonState == HIGH && buttonState == LOW) {

    state++;
    if (state > 2) state = 0;

    // Cambiar posición según estado
    if (state == 0) {
      myServo.write(0);
      Serial.println("Position: 0°");
    }
    else if (state == 1) {
      myServo.write(90);
      Serial.println("Position: 90°");
    }
    else if (state == 2) {
      myServo.write(180);
      Serial.println("Position: 180°");
    }

    delay(200); // debounce
  }

  lastButtonState = buttonState;
}