midiControllerPedal2.ino

int last2 = HIGH;
int last3 = HIGH;
int last4 = HIGH;
int last5 = HIGH;
int last6 = HIGH;

int now2 = HIGH;
int now3 = HIGH;
int now4 = HIGH;
int now5 = HIGH;
int now6 = HIGH;

byte bank = 0;
byte startStopBit = 0;

byte midiStart = 0xFA;
byte midiStop = 0xFC;
byte statusControl = 0xB9;
byte initControl = 0x20;
byte endControl = 0x63;

int hold2 = 0;
int hold3 = 0;

int midiClock = 1;

#include <SoftwareSerial.h>
SoftwareSerial midiSerial(11, 12);

void setup() {
  midiSerial.begin(31250);
  pinMode(2, INPUT);
  pinMode(3, INPUT);
  pinMode(4, INPUT);
  pinMode(5, INPUT);
  pinMode(6, INPUT);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  
  pinMode(13, OUTPUT);
}

void send2(byte byte1, byte byte2){
  midiSerial.write(byte1);
  midiSerial.write(byte2);
}

void send3(byte byte1, byte byte2, byte byte3){
  midiSerial.write(byte1);
  midiSerial.write(byte2);
  midiSerial.write(byte3);
}

void bankSelect (int select){
  bank = bank + select;
  send3(0xB9, 0x20, bank >> 7);
  send2(0xC9, bank&127);
}

void startStop(){
  if (startStopBit == 0){
    startStopBit = 1;
    send2(0xB9, 0xFA);
  }
  else{
    startStopBit = 0;
    send2(0xB9, 0xFC);
    midiClock = 1;
  }
}

void loop() {
  now2 = digitalRead(2);
  now3 = digitalRead(3);
  now4 = digitalRead(4);
  now5 = digitalRead(5);
  now6 = digitalRead(6);
  
  if (now2 == LOW && last2 == HIGH){
    bankSelect(1);
  }
  if (now2 == LOW && last2 == LOW){
    hold2 ++;
    if (hold2 > 10){
      bankSelect(1);
    }
  }
  if (now2 == HIGH && last2 == LOW){
    hold2 = 0;
  }
  if (now3 == LOW && last3 == HIGH){
    bankSelect(-1);
  }
  if (now3 == LOW && last3 == LOW){
    hold3 ++;
    if (hold3 > 10){
      bankSelect(-1);
    }
  }
  if (now3 == HIGH && last3 == LOW){
    hold3 = 0;
  }
  if (now4 == LOW && last4 == HIGH){
    startStop();
  }
  if (now5 == LOW && last5 == HIGH){
    send2(0xB9, byte(27));
  }
  if (now6 == LOW && last6 == HIGH){
    send2(0xB9, byte(28));
  }
  
  last2 = now2;
  last3 = now3;
  last4 = now4;
  last5 = now5;
  last6 = now6;
  if (startStopBit == 1){
    if (midiClock == 1){
      digitalWrite(13, HIGH);
    }
    if (midiClock > 23){
      midiClock = 0;
    }
    midiClock ++;
    send2(0xB9, 0xF8);
    
    delay(10);
    delayMicroseconds(11333);
    digitalWrite(13, LOW);
  }
  else{
    delay(50);
  }
}