KokuKeys.ino

/*
 * Mando pasadiapositivas (siguiente y anterior) por
 * bluetooth, usando dos botones del Lolin32 (ESP32)
 */

#include <Bounce2.h>
#include <BleKeyboard.h>

#define PREV_GPIO 4
#define NEXT_GPIO 23

BleKeyboard bleKeyboard("KokuGorro", "Kokuma", 80);
bool estadoBoton =  HIGH;

Bounce2::Button butPREV = Bounce2::Button();
Bounce2::Button butNEXT = Bounce2::Button();

int counter = 0;

void setup() {

  bleKeyboard.begin();

  butPREV.attach(PREV_GPIO, INPUT_PULLUP);
  butPREV.interval(5);
  butPREV.setPressedState(LOW);

  butNEXT.attach(NEXT_GPIO, INPUT_PULLUP);
  butNEXT.interval(5);
  butNEXT.setPressedState(LOW);

  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, LOW);

}



void loop() {

  butPREV.update();
  butNEXT.update();

  if (bleKeyboard.isConnected()) {

    if (butPREV.pressed()) {
      bleKeyboard.write(KEY_LEFT_ARROW);
    }

    if (butNEXT.pressed()) {
      bleKeyboard.write(KEY_RIGHT_ARROW);
    }

    digitalWrite(LED_BUILTIN, counter > 0);
    counter = ++counter % 30;
  }

  delay(50);

}