HIGH VOLTAGE PLASMA PIANO

1#include <MIDI.h> 
2#include <PWM.h>
3//#include <avr/wdt.h>
4int output = 9; //digital output pin
5int Vibrato = 40, Flat = 500; //vibrato period in ms
6int freqV = 0; //variable for storing frequency
7long Time = 0, PastTime = 0, PastTimeV = 0, TimeOn = 0; //for time monitoring
8int NoteNumber = 0;
9int delta = 0;
10byte DutyON = 0, DutyOFF = 255, Duty50 = 127; //variables for PWM duty
11byte pass = 1, counter = 1;
12
13bool SetModeFlat = 0, SetModeVibrato = 0;//helping logic variable
14bool MIDImode = 0, Delay = 0;
15
16int NoteG7 = 3179, NoteF_7 = 2997, NoteF7 = 2826, NoteE7 = 2665, NoteD_7 = 2513, NoteD7 = 2370, NoteC_7 = 2235, NoteC7 = 2108, //octave7
17    NoteB6 = 1989, NoteA_6 = 1876, NoteA6 = 1770, NoteG_6 = 1670, NoteG6 = 1576, NoteF_6 = 1487, NoteF6 = 1403, NoteE6 = 1323, NoteD_6 = 1248, NoteD6 = 1178, NoteC_6 = 1112, NoteC6 = 1048, //octave6
18    NoteB5 = 989, NoteA_5 = 937, NoteA5 = 883, NoteG_5 = 835, NoteG5 = 788, NoteF_5 = 743, NoteF5 = 702, NoteE5 = 663, NoteD_5 = 623, NoteD5 = 590, NoteC_5 = 555, NoteC5 = 525, //octave5
19    NoteB4 = 495, NoteA_4 = 467, NoteA4 = 441, NoteG_4 = 416, NoteG4 = 392, NoteF_4 = 371, NoteF4 = 350, NoteE4 = 330, NoteD_4 = 312, NoteD4 = 295, NoteC_4 = 278, NoteC4 = 262, //octave4
20    NoteB3 = 248, NoteA_3 = 234, NoteA3 = 221, NoteG_3 = 208, NoteG3 = 197, NoteF_3 = 186, NoteF3 = 175, NoteE3 = 165, NoteD_3 = 156, NoteD3 = 147, NoteC_3 = 139, NoteC3 = 130, //octave3
21    NoteB2 =124, NoteA_2 = 117, NoteA2 = 110, NoteG_2 = 104, NoteG2 = 99, NoteF_2 = 93, NoteF2 = 87, NoteE2 = 83, NoteD_2 = 78, NoteD2 = 74, NoteC_2 = 70, NoteC2 = 65, //octave2
22    NoteB1 = 62, NoteA_1 = 58, NoteA1 = 55, NoteG_1 = 52, NoteG1 = 49, NoteF_1 = 46, NoteF1 = 44, NoteE1 = 41, NoteD_1 = 39, NoteD1 = 37, NoteC_1 = 35, NoteC1 = 33, //octave1
23    NoteB0 = 31, NoteA_0 = 29, NoteA0 = 27; //octave0
24
25MIDI_CREATE_DEFAULT_INSTANCE();
26
27void setup() {
28  InitTimersSafe(); 
29  SetPinFrequency(output, 0);
30  pwmWrite(output, 255);
31  pinMode(13, OUTPUT);
32  MIDI.begin(MIDI_CHANNEL_OMNI);
33  MIDI.setHandleNoteOn(MyHandleNoteOn);
34  MIDI.setHandleNoteOff(MyHandleNoteOff);
35  //wdt_enable(WDTO_500MS);
36}
37
38void loop() {
39  MIDI.read();
40  Time = millis();
41  if( (Delay == 1) && (Time - TimeOn > 16)){
42    Delay = 0;
43    MIDImode = 1;
44    pwmWrite(output, 127);
45  }
46  
47  if( MIDImode == 1 ){
48  if(((Time - PastTime) <= Flat) && SetModeFlat){  
49  }
50  else if(((Time - PastTime) > Flat) && SetModeFlat){
51    SetModeFlat = 0;
52    SetModeVibrato = 1;
53  }
54  else if(((Time - PastTimeV) > Vibrato) && SetModeVibrato){
55    switch(pass){
56      case 1:
57      pass = 2;
58      SetPinFrequency(output, freqV+delta);
59      break;
60      case 2:
61      pass = 3;
62      SetPinFrequency(output, freqV);
63      break;
64      case 3:
65      pass = 4;
66      SetPinFrequency(output, freqV-delta);
67      break;
68      case 4:
69      pass = 1;
70      SetPinFrequency(output, freqV);
71      break;
72      default:
73      pass = 1;
74      break;
75    }
76    PastTimeV = millis();
77    }
78  }
79  //wdt_reset();
80  }
81
82void MyHandleNoteOn(byte channel, byte pitch, byte velocity) {
83  if(pitch == 30 || pitch == 31 || pitch == 40 || pitch == 41 || pitch == 50 || pitch == 51){
84  digitalWrite(13, HIGH);
85  pwmWrite(output, 255);
86  TimeOn = millis();
87  SetModeVibrato = 0;
88  SetModeFlat = 1;
89  MIDImode = 0;
90  Delay = 1;
91  NoteNumber = pitch;
92  PastTime = millis();
93switch(pitch){
94  case 30: freqV = NoteF_1; break;
95  case 31: freqV = NoteG1; break;
96  
97  case 40: freqV = NoteE2; break;
98  case 41: freqV = NoteF2; break;
99  
100  case 50: freqV = NoteD3; break;
101  case 51: freqV = NoteD_3; break;
102  }
103  delta = (int)(freqV*0.003);
104  if(delta == 0){
105    delta = 1;
106  }
107  SetPinFrequency(output, freqV);
108  //delay(10);
109  //pwmWrite(output, 127);
110}
111}
112
113void MyHandleNoteOff(byte channel, byte pitch, byte velocity) {
114if(NoteNumber == pitch){
115   pwmWrite(output, 255);
116   SetPinFrequency(output, 0);
117   digitalWrite(13, LOW);
118   MIDImode = 0;
119   Delay = 0;
120   SetModeVibrato = 0;
121   SetModeFlat == 0;
122}
123}