ELECTRICIDAD, código comunicación MIDI

COMUNICACIÓN MIDI

#include <MIDI.h>

const int sustain = 7; 
int a = 0;
int b = 0;


const int analogInPin3 = A0;  // Analog input pin that the potentiometer is attached to
const int analogOutPin3 = 11; // Analog output pin that the LED is attached to

const int analogInPin = A2;  // Analog input pin that the potentiometer is attached to
const int analogOutPin = 9; // Analog output pin that the LED is attached to

const int analogInPin2 = A1;  // Analog input pin that the potentiometer is attached to
const int analogOutPin2 = 10; // Analog output pin that the LED is attached to

int sensorValue = 0;        // value read from the pot
int outputValue = 0;  

int sensorValue2 = 0;        // value read from the pot
int outputValue2= 0; 

int sensorValue3 = 0;        // value read from the pot
int outputValue3= 0; 

void setup() {
  MIDI.begin();
  Serial.begin(31250);
  pinMode(sustain,INPUT);
}

void loop() {
  ////////////////////////////////////////////pitch bend//////////////
 sensorValue = analogRead(analogInPin);            
  // map it to the range of the analog out:
  outputValue = map(sensorValue,0, 1023, -8190, 8190);  
  // change the analog out value:
  analogWrite(analogOutPin, outputValue);           
 delay(7);
  //////////////////////////////////modulacion//////////////////////////////
  
 sensorValue2 = analogRead(analogInPin2);            
  // map it to the range of the analog out:
  outputValue2 = map(sensorValue2, 0, 1023, 0, 127);  
  // change the analog out value:
  analogWrite(analogOutPin2, outputValue2);           
 delay(7);
  ////////////////////////////////////volumen///////////////////
  sensorValue3 = analogRead(analogInPin3);            
  // map it to the range of the analog out:
  outputValue3 = map(sensorValue3, 0, 1023, 0, 127);  
  // change the analog out value:
  analogWrite(analogOutPin3, outputValue3);    
   delay(7);
  
  ////////////////////////////////////aquitermina//////////////////////////////
  
   int b = digitalRead(sustain);
   
    if(b==HIGH){  b =   127;  }
  
    controlChange(1, 7,outputValue3);
    PitchWheelChange(1, outputValue);  
    controlChange(1, 1,outputValue2);
    controlChange(1, 64,b); 
    delay(7);
   
}

//  plays a MIDI note.  Doesn't check to see that
//  cmd is greater than 127, or that data values are  less than 127:
void noteOn(int cmd, int pitch, int velocity) {
  Serial.write(cmd);
  Serial.write(pitch);
  Serial.write(velocity);
}

void PitchWheelChange(int channel, int value)  
{ /// value -8192,8191 (14 bits)
unsigned int change = 0x2000 + value;

unsigned char low = change & 0x7F ;   //low 7 bits

unsigned char high = (change >> 7)& 0x7F; //high 7 bits
Serial.write(B11100000 + channel-1);
Serial.write(low);
Serial.write(high);
}
void controlChange(int channel, int control, int value)
{
Serial.write(0xB0 + channel-1);
Serial.write(control);
Serial.write(value);

}