#include <Arduino.h>
#include "driver/ledc.h"

const int servoMotorPin = 13;

const int btn1Pin = 2;
const int btn2Pin = 4;

volatile bool btn1Pressed = false;
volatile bool btn2Pressed = false;
volatile int ciclo = 80;

void IRAM_ATTR ISR_btn1() {
  btn1Pressed = true;
}

void IRAM_ATTR ISR_btn2() {
  btn2Pressed = true;
}

ledc_channel_config_t channel_config;

void setup() {
  pinMode(btn1Pin, INPUT_PULLUP);
  pinMode(btn2Pin, INPUT_PULLUP);

  // Configuración del canal PWM para controlar el servomotor
  channel_config.gpio_num = servoMotorPin;
  channel_config.speed_mode = LEDC_HIGH_SPEED_MODE;
  channel_config.channel = LEDC_CHANNEL_0;
  channel_config.intr_type = LEDC_INTR_DISABLE; 
  channel_config.timer_sel = LEDC_TIMER_0;      
  channel_config.duty = ciclo;
  ledc_channel_config(&channel_config);

  // Configuración del timer PWM
  ledc_timer_config_t timer_config;
  timer_config.speed_mode = LEDC_HIGH_SPEED_MODE;
  timer_config.duty_resolution = LEDC_TIMER_10_BIT;
  timer_config.timer_num = LEDC_TIMER_0;
  timer_config.freq_hz = 50;
  ledc_timer_config(&timer_config);

  attachInterrupt(digitalPinToInterrupt(btn1Pin), ISR_btn1, FALLING);
  attachInterrupt(digitalPinToInterrupt(btn2Pin), ISR_btn2, FALLING);
}

void loop() {
  if (btn1Pressed) {
    if (ciclo < 150) {
      ciclo += 10;
    }
    btn1Pressed = false;
  }

  if (btn2Pressed) {
    if (ciclo > 30) {
      ciclo -= 10;
    }
    btn2Pressed = false;
  }

  ledcWrite(LEDC_CHANNEL_0, ciclo);
  delay(100);
}