6key arduino macro pad

6key.ino

#include <HID-Project.h>
#include <HID-Settings.h>

/**
   HIGH = 1
   LOW = 0
*/

#define PRESSED 1
#define RELEASED 0

// pin[xx] on led matrix connected to nn on Arduino
int pins[6] = { 10, 18, 19, 20, 21 };

// col[xx] of leds = pin yy on led matrix
int cols[3] = { 19, 18, 10 };

// row[xx] of leds = pin yy on led matrix
int rows[2] = { 21, 20 };

//debounce in milliseconds
const int debounceTime = 5;

//Switch Pins
const byte buttonPin[6] = {4, 5, 6, 7, 8, 9};

//Switch status
boolean buttonStatus[6] = {0, 0, 0, 0, 0, 0};

int layer = 0;

// hier sind eigentlich die buttonpresses aus der keyActions-Datei gewesen

void setup()
{
  Serial.begin(115200);
  
  Keyboard.begin();
  Consumer.begin();
  //setup inputs, turn on pullups
  for (int i = 0; i <= 5; i++)
  {
    pinMode(buttonPin[i], INPUT);
    digitalWrite(buttonPin[i], HIGH);
  }

  setupLeds();
}

void loop()
{
  CheckKeys();
  refreshLights();
  delay(debounceTime);
}

void CheckKeys()
{
  for (int i = 0; i <= 5; i++)
  {
    if (digitalRead(buttonPin[i]) == LOW)
    {
      checkPressedKey(i);
    }
    else
    {
      checkReleasedKey(i);
    }
  }
}

void checkPressedKey(int i)
{
  if (buttonStatus[i] == PRESSED)
  {
    return;
  }

  pressKey(i);
  buttonStatus[i] = 1;
}

void checkReleasedKey(int i)
{
  if (buttonStatus[i] == RELEASED)
  {
    return;
  }

  releaseKey(i);
  buttonStatus[i] = 0;
}

void pressKey(int i)
{
  if (layer == 1) {
    i = i + 6;
  }
  switch (i) {
    case 0: pressButton1(); break;
    case 1: pressButton2(); break;
    case 2: pressButton3(); break;
    case 3: pressButton4(); break;
    case 4: pressButton5(); break;
    case 5: pressButton6(); break;
    case 6: pressButton7(); break;
    case 7: pressButton8(); break;
    case 8: pressButton9(); break;
    case 9: pressButton10(); break;
    case 10: pressButton11(); break;
    case 11: pressButton12(); break;
    default: break;
  }
}

void releaseKey(int i)
{
  if (layer == 1) {
    i = i + 6;
  }
  switch (i) {
    case 0: releaseButton1(); break;
    case 1: releaseButton2(); break;
    case 2: releaseButton3(); break;
    case 3: releaseButton4(); break;
    case 4: releaseButton5(); break;
    case 5: releaseButton6(); break;
    case 6: releaseButton7(); break;
    case 7: releaseButton8(); break;
    case 8: releaseButton9(); break;
    case 9: releaseButton10(); break;
    case 10: releaseButton11(); break;
    case 11: releaseButton12(); break;
    default: break;
  }
}

void changeLayer() {
  if (layer == 0) {
    layer = 1;
  } else {
    layer = 0;
  }
}

void refreshLights() {
  if (layer == 0) {
    turnOnLeds();
    TXLED1;
    RXLED1;
  } else {
    turnOffLeds();
    TXLED0;
    RXLED0;
  }
}

void setupLeds() {
  for (int thisPin = 0; thisPin < 6; thisPin++) {
    // initialize the output pins:
    pinMode(pins[thisPin], OUTPUT);
    digitalWrite(pins[thisPin], LOW);
  }

  /*
    digitalWrite(cols[0], HIGH);
    digitalWrite(cols[1], HIGH);
    digitalWrite(rows[0], LOW);
    digitalWrite(rows[1], HIGH);
  */
  /*
    for (int i = 0; i < 3; i++) {
    digitalWrite(cols[i], HIGH);
    }

    for (int i = 0; i < 2; i++) {
    digitalWrite(rows[i], LOW);
    }

    /*
    for (int thisPin = 0; thisPin < 6; thisPin++) {
    // initialize the output pins:
    pinMode(pins[thisPin], OUTPUT);
    // take the col pins (i.e. the cathodes) high to ensure that the LEDS are off:
    digitalWrite(pins[thisPin], HIGH);
    }
  */
}

void turnOnLed(int row, int col) {
  digitalWrite(cols[0], HIGH);
  digitalWrite(rows[0], LOW);

  /*
    digitalWrite(rows[row], HIGH);
    digitalWrite(cols[col], LOW);
  */
}

void turnOffLed(int row, int col) {
  digitalWrite(cols[0], LOW);
  digitalWrite(rows[0], LOW);
  /*
    digitalWrite(rows[row], LOW);
    digitalWrite(cols[col], LOW);
  */
}

void turnOnLeds() {
  for (int i = 0; i < 3; i++) {
    digitalWrite(cols[i], HIGH);
  }

  for (int i = 0; i < 2; i++) {
    digitalWrite(rows[i], LOW);
  }
}

void turnOffLeds() {
  for (int i = 0; i < 2; i++) {
    digitalWrite(rows[i], HIGH);
  }
}

gistfile1.txt

install this arduino lib
https://github.com/NicoHood/HID

keyactions.ino

void pressButton1() {
  changeLayer();
}
void releaseButton1() {
}

void pressButton2() {
  Consumer.press(MEDIA_VOLUME_MUTE);
}

void releaseButton2() {
  Consumer.release(MEDIA_VOLUME_MUTE);  
}

void pressButton3() {
  Keyboard.press(KEY_ESC);
}
void releaseButton3() {
  Keyboard.release(KEY_ESC);
}

void pressButton4() {
  Consumer.press(MEDIA_VOLUME_DOWN);
}
void releaseButton4() {
  Consumer.release(MEDIA_VOLUME_DOWN);
  }

void pressButton5() {
  Consumer.press(MEDIA_VOLUME_UP);
}

void releaseButton5() {
  Consumer.release(MEDIA_VOLUME_UP);
}

void pressButton6() {
  Consumer.press(CONSUMER_EXPLORER);
}
void releaseButton6() {
  Consumer.release(CONSUMER_EXPLORER);  
}

void pressButton7() {
  pressButton1();
}

void releaseButton7() {
}

void pressButton8() {
  Serial.print("1\n");
}

void releaseButton8() {}

void pressButton9() {
}

void releaseButton9() {}

void pressButton10() {
}

void releaseButton10() {}

void pressButton11() {
}

void releaseButton11() {}

void pressButton12() {
}

void releaseButton12() {}