#define KEY_A           0x04  // A key on keyboard, 'a' or 'A'
#define KEY_B           0x05
#define KEY_C           0x06
#define KEY_D           0x07
#define KEY_E           0x08
#define KEY_F           0x09
#define KEY_G           0x0A
#define KEY_H           0x0B
#define KEY_I           0x0C
#define KEY_J           0x0D
#define KEY_K           0x0E
#define KEY_L           0x0F
#define KEY_M           0x10
#define KEY_N           0x11
#define KEY_O           0x12
#define KEY_P           0x13
#define KEY_Q           0x14
#define KEY_R           0x15
#define KEY_S           0x16
#define KEY_T           0x17
#define KEY_U           0x18
#define KEY_V           0x19
#define KEY_W           0x1A
#define KEY_X           0x1B
#define KEY_Y           0x1C
#define KEY_Z           0x1D
#define KEY_1           0x1E  // 1 key on keyboard, '1' or '!'
#define KEY_2           0x1F  // 2 key on keyboard, '2' or '@'
#define KEY_3           0x20  // 3 key on keyboard, '3' or '#'
#define KEY_4           0x21  // 4 key on keyboard, '4' or '$'
#define KEY_5           0x22  // 5 key on keyboard, '5' or '%'
#define KEY_6           0x23  // 6 key on keyboard, '6' or '^'
#define KEY_7           0x24  // 7 key on keyboard, '7' or '&'
#define KEY_8           0x25  // 8 key on keyboard, '8' or '*'
#define KEY_9           0x26  // 9 key on keyboard, '(' or '('
#define KEY_0           0x27  // 0 key on keyboard, '0' or ')'
#define	KEY_ENTER       0x28  // Keyboard Enter key, different from Keypad enter
#define	KEY_ESC	        0x29  // Escape
#define	KEY_BACKSPACE   0x2A  // Backspace
#define	KEY_TAB	        0x2B  // Tab
#define	KEY_SPACE       0x2C  // Spacebar
#define	KEY_MINUS       0x2D  // Minus key, '-' or '_'
#define	KEY_EQUAL	0x2E  // Equals key, '=' or '+'
#define	KEY_LEFTBRACE	0x2F  // Left brace, '[' or '{'
#define	KEY_RIGHTBRACE	0x30  // Right brace, ']' or '}'
#define	KEY_BACKSLASH	0x31  // Backslash key, '\' or '|'
#define	KEY_NONUSHASH	0x32  // Non-US '#' and '~'
#define	KEY_SEMICOLON	0x33  // Semicolon key, ';' or ':'
#define	KEY_APOSTROPHE	0x34  // Apostrophe key, ''' or double-quotes
#define	KEY_GRAVE	0x35  // Grave accent key, '' or '~'
#define	KEY_COMMA	0x36  // Comma key, ',' or '<'
#define	KEY_DOT	        0x37  // Dot key, '.' or '>'
#define	KEY_SLASH	0x38  // Forward slash key, '/' or '?'
#define	KEY_CAPSLOCK	0x39  // Caps Lock key, 
#define	KEY_F1	        0x3A  // Keyboard F1 key
#define	KEY_F2	        0x3B  // Keyboard F2 key
#define	KEY_F3	        0x3C
#define	KEY_F4	        0x3D
#define	KEY_F5	        0x3E
#define	KEY_F6	        0x3F
#define	KEY_F7	        0x40
#define	KEY_F8	        0x41
#define	KEY_F9	        0x42
#define	KEY_F10	        0x43
#define	KEY_F11	        0x44
#define	KEY_F12	        0x45
#define	KEY_SYSRQ	0x46  // PrintScreen Key
#define	KEY_SCROLLLOCK	0x47  // Scroll Lock key
#define	KEY_PAUSE	0x48  // Pause key
#define	KEY_INSERT	0x49  // Insert key
#define	KEY_HOME	0x4A  // Home key
#define	KEY_PAGEUP	0x4B  // Page up key
#define	KEY_DELETE	0x4C  // Delete Forward key
#define	KEY_END	        0x4D  // End key
#define	KEY_PAGEDOWN	0x4E  // Page down key
#define	KEY_RIGHT	0x4F  // Right arrow
#define	KEY_LEFT	0x50  // Left arrow
#define	KEY_DOWN	0x51  // Down arrow
#define	KEY_UP	        0x52  // Up arrow
#define	KEY_NUMLOCK	0x53  // Num Lock and clear
#define	KEY_KPSLASH	0x54  // Keypad Forward slash (/)
#define	KEY_KPASTERISK	0x55  // Keypad asterisk (*)
#define	KEY_KPMINUS	0x56  // Keypad minus (-)
#define	KEY_KPPLUS	0x57  // Keypad plus (+)
#define	KEY_KPENTER	0x58  // Keypad Enter, different from keyboard enter
#define	KEY_KP1	        0x59  // Keypad 1 and End
#define	KEY_KP2	        0x5A  // Keypad 2 and Down arrow
#define	KEY_KP3	        0x5B  // Keypad 3 and Page Down
#define	KEY_KP4	        0x5C  // Keypad 4 and Left arrow
#define	KEY_KP5	        0x5D  // Keypad 5
#define	KEY_KP6	        0x5E  // Keypad 6 and Right arrow
#define	KEY_KP7	        0x5F  // Keypad 7 and Home
#define	KEY_KP8	        0x60  // Keypad 8 and Up arrow
#define	KEY_KP9	        0x61  // Keypad 9 and Page up
#define	KEY_KP0	        0x62  // Keypad 0 and Insert
#define	KEY_KPDOT	0x63  // Keypad . and Delete
#define	KEY_102ND	0x64  // Keyboard Non-US \ and |
#define	KEY_COMPOSE	0x65  // Keyboard application, right click-ish 'compose' key
#define	KEY_POWER	0x66  // Keyboard Power, not usually a phsyical key
#define	KEY_KPEQUAL	0x67  // Keypad =
#define	KEY_F13	        0x68  // Keyboard F13
#define	KEY_F14	        0x69
#define	KEY_F15	        0x6A
#define	KEY_F16	        0x6B
#define	KEY_F17	        0x6C
#define	KEY_F18	        0x6D
#define	KEY_F19	        0x6E
#define	KEY_F20	        0x6F
#define	KEY_F21	        0x70
#define	KEY_F22	        0x71
#define	KEY_F23	        0x72
#define	KEY_F24	        0x73  // Keyboard F24
#define	KEY_OPEN	0x74  // Keyboard Execute
#define	KEY_HELP	0x75  // Keyboard Help
#define	KEY_PROPS	0x76  // Keyboard Menu
#define	KEY_FRONT	0x77  // Keyboard Select
#define	KEY_STOP	0x78  // Keyboard Stop
#define	KEY_AGAIN	0x79  // Keyboard Again
#define	KEY_UNDO	0x7A  // Keyboard Undo
#define	KEY_CUT	        0x7B  // Keyboard Cut
#define	KEY_COPY	0x7C  // Keyboard Copy
#define	KEY_PASTE	0x7D  // Keyboard Paste
#define	KEY_FIND	0x7E  // Keyboard Find
#define	KEY_MUTE	0x7F  // Keyboard Mute
#define	KEY_VOLUMEUP	0x80  // Keyboard Volume Up
#define	KEY_VOLUMEDOWN	0x81  // Keyboard Volume Down
#define KEY_RETURN      0x9E  // Keyboard Return
#define	KEY_LEFTCTRL	0xE0  // Keyboard Left Control
#define	KEY_LEFTSHIFT	0xE1  // Keyboard Left Shift
#define	KEY_LEFTALT	0xE2  // Keyboard Left Alt
#define	KEY_LEFTGUI	0xE3  // Keyboard Left GUI, windows key
#define	KEY_RIGHTCTRL	0xE4  // Keyboard Right control
#define	KEY_RIGHTSHIFT	0xE5  // Keyboard Right Shift
#define	KEY_RIGHTALT	0xE6  // Keyboard Right alt
#define	KEY_RIGHTGUI	0xE7  // Keyboard Right GUI, windows key
#define	KEY_PLAYPAUSE	0xE8  // Reserved? ...\/
#define	KEY_STOPCD	0xE9
#define	KEY_PREVIOUSSONG  0xEA
#define	KEY_NEXTSONG	0xEB
#define	KEY_EJECTCD	0xEC
#define	KEY_WWW	        0xF0
#define	KEY_BACK	0xF1
#define	KEY_FORWARD	0xF2
#define	KEY_SCROLLUP	0xF5
#define	KEY_SCROLLDOWN	0xF6
#define	KEY_EDIT	0xF7 

void sendKey(byte key, byte key2, byte modifiers)
{
  KeyReport report = {0};  // Create an empty KeyReport
  
  /* First send a report with the keys and modifiers pressed */
  report.keys[0] = key;  // set the KeyReport to key
  report.keys[1] = key2;
  report.modifiers = modifiers;  // set the KeyReport's modifiers
  report.reserved = 1;
  Keyboard.sendReport(&report);  // send the KeyReport
  
  /* Now we've got to send a report with nothing pressed */
  for (int i=0; i<6; i++)
    report.keys[i] = 0;  // clear out the keys
  report.modifiers = 0x00;  // clear out the modifires
  report.reserved = 0;
  Keyboard.sendReport(&report);  // send the empty key report
}


void loop(){
}

// A fun sketch to demonstrate the use of the Tone library.

// To mix the output of the signals to output to a small speaker (i.e. 8 Ohms or higher),
// simply use 1K Ohm resistors from each output pin and tie them together at the speaker.
// Don't forget to connect the other side of the speaker to ground!

// You can get more RTTTL (RingTone Text Transfer Language) songs from
// http://code.google.com/p/rogue-code/wiki/ToneLibraryDocumentation

/*************************************************
* Public Constants
*************************************************/

#define NOTE_B0  31
#define NOTE_C1  33
#define NOTE_CS1 35
#define NOTE_D1  37
#define NOTE_DS1 39
#define NOTE_E1  41
#define NOTE_F1  44
#define NOTE_FS1 46
#define NOTE_G1  49
#define NOTE_GS1 52
#define NOTE_A1  55
#define NOTE_AS1 58
#define NOTE_B1  62
#define NOTE_C2  65
#define NOTE_CS2 69
#define NOTE_D2  73
#define NOTE_DS2 78
#define NOTE_E2  82
#define NOTE_F2  87
#define NOTE_FS2 93
#define NOTE_G2  98
#define NOTE_GS2 104
#define NOTE_A2  110
#define NOTE_AS2 117
#define NOTE_B2  123
#define NOTE_C3  131
#define NOTE_CS3 139
#define NOTE_D3  147
#define NOTE_DS3 156
#define NOTE_E3  165
#define NOTE_F3  175
#define NOTE_FS3 185
#define NOTE_G3  196
#define NOTE_GS3 208
#define NOTE_A3  220
#define NOTE_AS3 233
#define NOTE_B3  247
#define NOTE_C4  262
#define NOTE_CS4 277
#define NOTE_D4  294
#define NOTE_DS4 311
#define NOTE_E4  330
#define NOTE_F4  349
#define NOTE_FS4 370
#define NOTE_G4  392
#define NOTE_GS4 415
#define NOTE_A4  440
#define NOTE_AS4 466
#define NOTE_B4  494
#define NOTE_C5  523
#define NOTE_CS5 554
#define NOTE_D5  587
#define NOTE_DS5 622
#define NOTE_E5  659
#define NOTE_F5  698
#define NOTE_FS5 740
#define NOTE_G5  784
#define NOTE_GS5 831
#define NOTE_A5  880
#define NOTE_AS5 932
#define NOTE_B5  988
#define NOTE_C6  1047
#define NOTE_CS6 1109
#define NOTE_D6  1175
#define NOTE_DS6 1245
#define NOTE_E6  1319
#define NOTE_F6  1397
#define NOTE_FS6 1480
#define NOTE_G6  1568
#define NOTE_GS6 1661
#define NOTE_A6  1760
#define NOTE_AS6 1865
#define NOTE_B6  1976
#define NOTE_C7  2093
#define NOTE_CS7 2217
#define NOTE_D7  2349
#define NOTE_DS7 2489
#define NOTE_E7  2637
#define NOTE_F7  2794
#define NOTE_FS7 2960
#define NOTE_G7  3136
#define NOTE_GS7 3322
#define NOTE_A7  3520
#define NOTE_AS7 3729
#define NOTE_B7  3951
#define NOTE_C8  4186
#define NOTE_CS8 4435
#define NOTE_D8  4699
#define NOTE_DS8 4978


#define OCTAVE_OFFSET 0

int notes[] = { 0,
NOTE_C4, NOTE_CS4, NOTE_D4, NOTE_DS4, NOTE_E4, NOTE_F4, NOTE_FS4, NOTE_G4, NOTE_GS4, NOTE_A4, NOTE_AS4, NOTE_B4,
NOTE_C5, NOTE_CS5, NOTE_D5, NOTE_DS5, NOTE_E5, NOTE_F5, NOTE_FS5, NOTE_G5, NOTE_GS5, NOTE_A5, NOTE_AS5, NOTE_B5,
NOTE_C6, NOTE_CS6, NOTE_D6, NOTE_DS6, NOTE_E6, NOTE_F6, NOTE_FS6, NOTE_G6, NOTE_GS6, NOTE_A6, NOTE_AS6, NOTE_B6,
NOTE_C7, NOTE_CS7, NOTE_D7, NOTE_DS7, NOTE_E7, NOTE_F7, NOTE_FS7, NOTE_G7, NOTE_GS7, NOTE_A7, NOTE_AS7, NOTE_B7
};

char *song = "MissionImp:d=16,o=6,b=95:32d,32d#,32d,32d#,32d,32d#,32d,32d#,32d,32d,32d#,32e,32f,32f#,32g,g,8p,g,8p,a#,p,c7,p,g,8p,g,8p,f,p,f#,p,g,8p,g,8p,a#,p,c7,p,g,8p,g,8p,f,p,f#,p,a#,g,2d,32p,a#,g,2c#,32p,a#,g,2c,a#5,8c,2p,32p,a#5,g5,2f#,32p,a#5,g5,2f,32p,a#5,g5,2e,d#,8d";

void setup(void)
{
  pinMode(11, OUTPUT);
  pinMode(9, OUTPUT);
  delay(1000);

  // Lock Me 0.3 - Script opens Notepad and types a message concerning locking the computer - by SurfKahuna (RJC)
  sendKey(KEY_F2, 0, 0 | KEY_MODIFIER_LEFT_ALT);
  delay(2000);
  Keyboard.print("gedit");
  sendKey(KEY_ENTER, 0, 0);
  delay(3000);
  Keyboard.print("          , ,\\ ,'\\,'\\ ,'\\ ,\\ ,");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("    ,  ,\\/ \\' `'     `   '  /|");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("    |\\/                      |");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("    :                        |");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("    :                        |");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     |                       |");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     |                       |");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     :               -.     _|");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     :                \\     `.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     |         ________:______\\");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     :       ,'o       / o    ,");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     :       \\       ,'-----./");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("      \\_      `--.--'        )");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     ,` `.              ,---'|");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     : `                     |");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("      `,-'                   |");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("      /      ,---.          ,'");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("   ,-'            `-,------'");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("   `.        ,--'");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("     `-.____/");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("            \\");
  sendKey(KEY_ENTER, 0, 0);
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("I will learn to lock my computer.");
  sendKey(KEY_ENTER, 0, 0);
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("There, just like Bart Simpson.");
  sendKey(KEY_ENTER, 0, 0);
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("Please remember to lock your computer when you step away from your desk.");
  sendKey(KEY_ENTER, 0, 0);
  sendKey(KEY_ENTER, 0, 0);
  Keyboard.print("Thank you.");
  sendKey(KEY_ENTER, 0, 0);
  delay(1000);
  sendKey(KEY_SPACE, 0, 0 | KEY_MODIFIER_LEFT_ALT);
  delay(500);
  Keyboard.print("x");
    play_rtttl(song);
}


#define isdigit(n) (n >= '0' && n <= '9')

void play_rtttl(char *p)
{
  // Absolutely no error checking in here

  byte default_dur = 4;
  byte default_oct = 6;
  int bpm = 63;
  int num;
  long wholenote;
  long duration;
  byte note;
  byte scale;

  // format: d=N,o=N,b=NNN:
  // find the start (skip name, etc)

  while(*p != ':') p++;    // ignore name
  p++;                     // skip ':'

  // get default duration
  if(*p == 'd')
  {
    p++; p++;              // skip "d="
    num = 0;
    while(isdigit(*p))
    {
      num = (num * 10) + (*p++ - '0');
    }
    if(num > 0) default_dur = num;
    p++;                   // skip comma
  }


  // get default octave
  if(*p == 'o')
  {
    p++; p++;              // skip "o="
    num = *p++ - '0';
    if(num >= 3 && num <=7) default_oct = num;
    p++;                   // skip comma
  }


  // get BPM
  if(*p == 'b')
  {
    p++; p++;              // skip "b="
    num = 0;
    while(isdigit(*p))
    {
      num = (num * 10) + (*p++ - '0');
    }
    bpm = num;
    p++;                   // skip colon
  }


  // BPM usually expresses the number of quarter notes per minute
  wholenote = (60 * 1000L / bpm) * 4;  // this is the time for whole note (in milliseconds)


  // now begin note loop
  while(*p)
  {
    // first, get note duration, if available
    num = 0;
    while(isdigit(*p))
    {
      num = (num * 10) + (*p++ - '0');
    }
    
    if(num) duration = wholenote / num;
    else duration = wholenote / default_dur;  // we will need to check if we are a dotted note after

    // now get the note
    note = 0;

    switch(*p)
    {
      case 'c':
        note = 1;
        break;
      case 'd':
        note = 3;
        break;
      case 'e':
        note = 5;
        break;
      case 'f':
        note = 6;
        break;
      case 'g':
        note = 8;
        break;
      case 'a':
        note = 10;
        break;
      case 'b':
        note = 12;
        break;
      case 'p':
      default:
        note = 0;
    }
    p++;

    // now, get optional '#' sharp
    if(*p == '#')
    {
      note++;
      p++;
    }

    // now, get optional '.' dotted note
    if(*p == '.')
    {
      duration += duration/2;
      p++;
    }
  
    // now, get scale
    if(isdigit(*p))
    {
      scale = *p - '0';
      p++;
    }
    else
    {
      scale = default_oct;
    }

    scale += OCTAVE_OFFSET;

    if(*p == ',')
      p++;       // skip comma for next note (or we may be at the end)

    // now play the note

    if(note)
    {
      digitalWrite(9, HIGH);
      int danFreq;
      float danDur;
      danFreq = notes[(scale - 4) * 12 + note];
      danDur = 1000000 / danFreq;
      unsigned long start = millis();
      while (millis() - start <= duration) {
          digitalWrite(11, HIGH);
          delayMicroseconds(danDur);
          digitalWrite(11, LOW);
          delayMicroseconds(danDur);
      }
      digitalWrite(9, LOW);
    }
    else
    {
      delay(duration);
    }
  }
}