Midi Organ pedalboard arduino sketch

pedals.ino

boolean C1 = 1;
boolean CS1 = 1;
boolean D1 = 1;
boolean DS1 = 1;
boolean E1 = 1;
boolean F1 = 1;
boolean FS1 = 1;
boolean G1 = 1;
boolean GS1 = 1;
boolean An1 = 1;//has a lowercase n (stands for note), because it wouldn't compile as A0.
boolean AnS1 = 1;
boolean Bn1 = 1;
boolean C2 = 1;
boolean CS2 = 1;
boolean D2 = 1;
boolean DS2 = 1;
boolean E2 = 1;
boolean F2 = 1;
boolean FS2 = 1;
boolean G2 = 1;
boolean GS2 = 1;
boolean An2 = 1;
boolean AnS2 = 1;
boolean Bn2 = 1;
boolean C3 = 1;

boolean C1last = 1;
boolean CS1last = 1;
boolean D1last = 1;
boolean DS1last = 1;
boolean E1last = 1;
boolean F1last = 1;
boolean FS1last = 1;
boolean G1last = 1;
boolean GS1last = 1;
boolean A1last = 1;
boolean AS1last = 1;
boolean B1last = 1;
boolean C2last = 1;
boolean CS2last = 1;
boolean D2last = 1;
boolean DS2last = 1;
boolean E2last = 1;
boolean F2last = 1;
boolean FS2last = 1;
boolean G2last = 1;
boolean GS2last = 1;
boolean A2last = 1;
boolean AS2last = 1;
boolean B2last = 1;
boolean C3last = 1;


boolean last[] = {C1last, CS1last, D1last, DS1last, E1last, F1last, FS1last, G1last, GS1last, A1last, AS1last, B1last, C2last, CS2last, D2last, DS2last, E2last, F2last, FS2last, G2last, GS2last, A2last, AS2last, B2last, C3last};
 
  
int lowestNote = 36;//The lowest C pedal on an organ (or at least mine) is 36 aka C1
int numberOfPedals = 25;
int vol = 0;

void setup()  {
  Serial.begin(31250);
  pinMode(22, INPUT_PULLUP);
  pinMode(23, INPUT_PULLUP);
  pinMode(24, INPUT_PULLUP);
  pinMode(25, INPUT_PULLUP);
  pinMode(26, INPUT_PULLUP);
  pinMode(27, INPUT_PULLUP);
  pinMode(28, INPUT_PULLUP);
  pinMode(29, INPUT_PULLUP);
  pinMode(30, INPUT_PULLUP);
  pinMode(31, INPUT_PULLUP);
  pinMode(32, INPUT_PULLUP);
  pinMode(33, INPUT_PULLUP);
  pinMode(34, INPUT_PULLUP);
  pinMode(35, INPUT_PULLUP);
  pinMode(36, INPUT_PULLUP);
  pinMode(37, INPUT_PULLUP);
  pinMode(38, INPUT_PULLUP);
  pinMode(39, INPUT_PULLUP);
  pinMode(40, INPUT_PULLUP);
  pinMode(41, INPUT_PULLUP);
  pinMode(42, INPUT_PULLUP);
  pinMode(43, INPUT_PULLUP);
  pinMode(44, INPUT_PULLUP);
  pinMode(45, INPUT_PULLUP);
  pinMode(46, INPUT_PULLUP);

  pinMode(52, OUTPUT);
//    midiProg(0xC0, 1);//still deciding how to trigger this while the code is looping. 0xC0 is midi for program change and second param is which setting.
}

void loop()  {



  
  vol = 1023;//analogRead(A5);//1023 is max volume. This can be replaced with a potentiometer later, but for now i'll just use the volume knob on my amp
  vol = map(vol, 0, 1023, 0, 127);
  
 
  C1 = digitalRead(41);//41
  CS1 = digitalRead(43);//43
  D1 = digitalRead(30);//30
  DS1 = digitalRead(32);//32
  E1 = digitalRead(36);//36
  F1 = digitalRead(22);//22
  FS1 = digitalRead(45);//45
  G1 = digitalRead(38);//38
  GS1 = digitalRead(27);//27
  An1 = digitalRead(37);//37
  AnS1 = digitalRead(39);//39
  Bn1 = digitalRead(23);//23
  C2 = digitalRead(29);//31
  CS2 = digitalRead(24);//28
  D2 = digitalRead(44);//44
  DS2 = digitalRead(46);//24
  E2 = digitalRead(26);//26
  F2 = digitalRead(31);//42
  FS2 = digitalRead(28);//29
  G2 = digitalRead(40);
  GS2 = digitalRead(42);//40
  An2 = digitalRead(25);//25
  AnS2 = digitalRead(35);//35
  Bn2 = digitalRead(34);//34
  C3 = digitalRead(33);//33

  boolean inputs[] = {C1, CS1, D1, DS1, E1, F1, FS1, G1, GS1, An1, AnS1, Bn1, C2, CS2, D2, DS2, E2, F2, FS2, G2, GS2, An2, AnS2, Bn2, C3};

  
  for (int index=0; index<numberOfPedals; index++) {
    if (inputs[index] != last[index]) {
       if (inputs[index] == 0) {
        noteOn(0x90, lowestNote+index, vol);
       }
       else {
        noteOn(0x80, lowestNote+index, 0x00);
       }
    }
    
    last[index] = inputs[index];
  }

  
  delay(50);
}

 void noteOn(byte cmd, byte data1, byte data2) {
  if (data2 == 0x00) {//triggers an led to light up whenver a note is produced.
    digitalWrite(52, LOW);
  } else {
    digitalWrite(52, HIGH);
  }
   Serial.write(cmd);
   Serial.write(data1);
   Serial.write(data2);
   delay(10);
 }
 
 //  Send a two byte midi message  
void midiProg(char status, int data ) {
  Serial.write(status);
  Serial.write(data);
}