media_control.ino

#include <Encoder.h>
#include <Bounce.h>
#include <Keyboard.h>

const int pinClk = 6;
const int pinDt = 7;
const int prevButton = 8;
const int nextButton = 9;
const int pinButton = 10;

Bounce bouncer = Bounce(pinButton, 5);
Bounce prevButtonBouncer = Bounce(prevButton, 5);
Bounce nextButtonBouncer = Bounce(nextButton, 5);
Encoder myEnc(pinClk, pinDt);

void setup() {
  Serial.begin(9600);
  Serial.println("Basic Encoder Test:");
  pinMode(pinButton, INPUT_PULLUP);
  pinMode(prevButton, INPUT_PULLUP);
  pinMode(nextButton, INPUT_PULLUP);
}

long oldPosition  = -999;

void loop() {
  long newPosition = myEnc.read();
  Serial.println(newPosition);
  int diff = newPosition - oldPosition;
  if (newPosition != oldPosition) {
    //Serial.println(diff);
    if (newPosition - oldPosition >= 4) {
      oldPosition = newPosition;
      Keyboard.press(KEY_MEDIA_VOLUME_INC);
      Keyboard.release(KEY_MEDIA_VOLUME_INC);
    } else if (abs(oldPosition - newPosition) >= 4) {
      oldPosition = newPosition;
      Keyboard.press(KEY_MEDIA_VOLUME_DEC);
      Keyboard.release(KEY_MEDIA_VOLUME_DEC);
    }
  }

  bouncer.update();
  if (bouncer.fallingEdge()) {\
    Keyboard.press(KEY_MEDIA_PLAY_PAUSE);
    Keyboard.release(KEY_MEDIA_PLAY_PAUSE);
  }

  prevButtonBouncer.update();
  nextButtonBouncer.update();
  if (prevButtonBouncer.fallingEdge()) {
    Keyboard.press(KEY_MEDIA_PREV_TRACK);
    Keyboard.release(KEY_MEDIA_PREV_TRACK);
  }
  if (nextButtonBouncer.fallingEdge()) {
    Keyboard.press(KEY_MEDIA_NEXT_TRACK);
    Keyboard.release(KEY_MEDIA_NEXT_TRACK);
  }
}