Construyendo un controlador MIDI con arduino

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#include <AnalogMultiButton.h> //Will be used for connect two or more buttons,using resistors, to one analog input on arduino.
#include <Control_Surface.h> //Include Control Surface library (
#include <Arduino_Helpers.h> //Include the Arduino Helpers library.
#include <AH/Containers/ArrayHelpers.hpp> //Include the ArrayHelpers library.
#include <AH/Hardware/Button.hpp> //Include the Button library.
#include <AH/Hardware/ExtendedInputOutput/AnalogMultiplex.hpp> //Include the AnalogMultiplex library.


USBMIDI_Interface usbmidi;



Bank<8> bankpedal(4); //Declare a bank named bankpedal.<8>bank positions.and(4)incrementDecrement value
Bank<8> bankamp(4); //Declare a bank named bankpedal.<8>bank positions.and(4)IncrementDecrement value

/**Declare a CD74HC4067 multiplexer named "mux2".*/
CD74HC4067 mux2 = {
8, //Pin SIG on multiplexer, connected to pin(8) on arduino.
{9, 10, 11, 12}, //Pins S0, S1, S2, S3 on multiplexer, connected to pins( 9, 10, 11 and 12 )on arduino.
};

/**Declare 8 buttons as ccbuttonlatched and
*connected to pins 0-7 in multiplexer 2 (mux2) 99,
*declared as digital inputs and named "pedalswitches" .
*Will be the 8 on/off buttons for 8 different pedals
*/
CCButtonLatched pedalswitches[] = {
{ mux2.pin(0), { 77, CHANNEL_1 } }, //Button connected to C0 in multiplexer(mux2)and Ground. CC 77 MIDI signal on channel 1. First pedal effect on/off button (with led state)
{ mux2.pin(1), { 81, CHANNEL_1 } }, //Button connected to C1 in multiplexer(mux2)and Ground. CC 81 MIDI signal on channel 1. Second pedal effect on/off button (with led state)
{ mux2.pin(2), { 85, CHANNEL_1 } }, //Button connected to C2 in multiplexer(mux2)and Ground. CC 85 MIDI signal on channel 1. Third pedal effect on/off button (with led state)
{ mux2.pin(3), { 89, CHANNEL_1 } }, //Button connected to C3 in multiplexer(mux2)and Ground. CC 89 MIDI signal on channel 1. Fourth pedal effect on/off button (with led state)
{ mux2.pin(4), { 93, CHANNEL_1 } }, //Button connected to C4 in multiplexer(mux2)and Ground. CC 93 MIDI signal on channel 1. Fifth pedal effect on/off button (with led state)
{ mux2.pin(5), { 97, CHANNEL_1 } }, //Button connected to C5 in multiplexer(mux2)and Ground. CC 97 MIDI signal on channel 1. Sixth pedal effect on/off button (with led state)
{ mux2.pin(6), { 101, CHANNEL_1 } }, //Button connected to C6 in multiplexer(mux2)and Ground. CC 101 MIDI signal on channel 1. Seventh pedal effect on/off button (with led state)
{ mux2.pin(7), { 105, CHANNEL_1 } }, //Button connected to C7 in multiplexer(mux2)and Ground. CC 105 MIDI signal on channel 1. eighth pedal effect on/off button (with led state)
};


/**Declare 8 buttons as ccbuttonlatched type and
* connected to pins 8-15 in multiplexer 2 (mux2),
* as digital inputs, "named single8buttons" */
CCButtonLatched single8buttons[] = {
{ mux2.pin(8), { 84, CHANNEL_1 } }, //Button connected to C8 in multiplexer(mux2)and Ground. CC 84 MIDI signal on channel 1.
{ mux2.pin(9), { 86, CHANNEL_2 } }, //Button connected to C9 in multiplexer(mux2)and Ground. CC 86 MIDI signal on channel 2.
{ mux2.pin(10), { 87, CHANNEL_3 } }, //Button connected to C10 in multiplexer(mux2)and Ground. CC 87 MIDI signal on channel 3.
{ mux2.pin(11), { 88, CHANNEL_4 } }, //Button connected to C11 in multiplexer(mux2)and Ground. CC 88 MIDI signal on channel 4.
{ mux2.pin(12), { 90, CHANNEL_5 } }, //Button connected to C12 in multiplexer(mux2)and Ground. CC 90 MIDI signal on channel 5.
{ mux2.pin(13), { 91, CHANNEL_6 } }, //Button connected to C13 in multiplexer(mux2)and Ground. CC 91 MIDI signal on channel 6.
{ mux2.pin(14), { 92, CHANNEL_7 } }, //Button connected to C14 in multiplexer(mux2)and Ground. CC 92 MIDI signal on channel 7.
{ mux2.pin(15), { 94, CHANNEL_8 } }, //Button connected to C15 in multiplexer(mux2)and Ground. CC 77 MIDI signal on channel 1.
};

/**Declare a CD74HC4067 multiplexer named "mux3".*/
CD74HC4067 mux3 = {
A15, //Pin SIG on multiplexer, connected to pin(A15) on arduino.
{A14, A13, A12, A11}, //Pins S0, S1, S2, S3 on multiplexer, connected to pins( A14, A13, A12 and A11 )in arduino.
};




/**Declare 8 potentiometers as ccpotentiometer type and
* connected to pins 4-7 (POTSpedal) and 12-15 (POTSamps).
* Declared as analog inputs in multiplexer 3 (mux3), ,and named "POTSpedalPOTSamp" */
CCPotentiometer POTSpedalPOTSamp[] = {

{mux3.pin(4), 74}, //Potentiometer connected to C4 in multiplexer(mux3)and Ground. CC 74 MIDI signal on channel 1. Pots pedal (not bankable)
{mux3.pin(5), 75}, //Potentiometer connected to C5 in multiplexer(mux3)and Ground. CC 75 MIDI signal on channel 1. Pots pedal (not bankable)
{mux3.pin(6), 76}, //Potentiometer connected to C6 in multiplexer(mux3)and Ground. CC 76 MIDI signal on channel 1. Pots pedal (not bankable)
{mux3.pin(7), 78}, //Potentiometer connected to C7 in multiplexer(mux3)and Ground. CC 78 MIDI signal on channel 1. Pots pedal (not bankable)
{mux3.pin(12), 79}, //Potentiometer connected to C12 in multiplexer(mux3)and Ground. CC 79 MIDI signal on channel 1.Pots amp (not bankable)
{mux3.pin(13), 80}, //Potentiometer connected to C13 in multiplexer(mux3)and Ground. CC 80 MIDI signal on channel 1.Pots amp (not bankable)
{mux3.pin(14), 82}, //Potentiometer connected to C14 in multiplexer(mux3)and Ground. CC 82 MIDI signal on channel 1.Pots amp (not bankable)
{mux3.pin(15), 83}, //Potentiometer connected to C15 in multiplexer(mux3)and Ground. CC 83 MIDI signal on channel 1.Pots amp (not bankable)
};


/** Declare a button as bankable::ccbuttonlatched type
* (this button will increment or decrement (4) values (CC)
* in <8> each bank position (bankpedal).(Starts on position one
* 77 CC and finish position eight 105 CC).
* it´s connected to pin 6 in arduino,
* declared as digital input,and named "pedaleffectprincipalbutton"
* This button will turn ON/OFF the pedal effect.
* pressing increment/decrement button will turn on/off the next pedal effect.
*/
Bankable::CCButtonLatched<8> pedaleffectprincipalbutton[] = {
{ bankpedal, 6, 77, },
};


/**Declare 4 potentiometers as bankable::ccpotentiometer type and
* connected to pins 8-11 in multiplexer 3 (mux3),
* declared as analog inputs,and named POTSbankamp.
* (this potentiometers will increment or decrement (4) values (CC)
* in <8> each bank position (bankamp).(First potentiometer starts on position one
* 1 CC and finish position eight 29 CC).
*/
Bankable::CCPotentiometer POTSbankamp[] = {

{bankamp, mux3.pin(8), 1},
{bankamp, mux3.pin(9), 3},
{bankamp, mux3.pin(10), 4},
{bankamp, mux3.pin(11), 6},
};


/**Declare 4 potentiometers as bankable::ccpotentiometer type and
* connected to pins 0-3 in multiplexer 3 (mux3),
* declared as analog inputs,and named POTSbankpedal.
* (this potentiometers will increment or decrement (4) values (CC)
* in <8> each bank position (bankamp).(First potentiometer starts on position one
* 37 CC and finish position eight 65 CC).
*/
Bankable::CCPotentiometer POTSbankpedal[] = {

{bankpedal, mux3.pin(0), 37},
{bankpedal, mux3.pin(1), 38},
{bankpedal, mux3.pin(2), 39},
{bankpedal, mux3.pin(3), 40},
};


/** Declare two buttons as Incrementdecrementselectorleds type
* (this buttons will increment or decrement bank position
* in bankpedal.(Starts on position one and finish in position eight)
* declared as digital inputs,and named "bankSelectorbankpedal"
* This buttons will show bank position from one to eight with eight
* different leds
*/
IncrementDecrementSelectorLEDs<8> bankSelectorbankpedal = {
bankpedal,
{5, 7}, // button pins connected to digital inputs 5 and 7 in arduino and ground
{30, 31, 32, 33, 34, 35, 36, 37}, // LED pins connected to digital inputs 30-37 in arduino and ground
};


/** Declare two buttons as Incrementdecrementselectorleds type
* (this buttons will increment or decrement bank position
* in bankamp.(Starts on position one and finish in position eight)
* declared as digital inputs,and named "bankSelectorbankamp"
* This buttons will show bank position 1-8 with eight
* different leds
*/
IncrementDecrementSelectorLEDs<8> bankSelectorbankamp = {
bankamp,
{14, 15}, // buttons connected to digital inputs 14 and 15 in arduino and ground
{38, 43, 44, 41, 42, 39, 40, 45}, // LED pins connected to digital inputs 38-45 in arduino.and ground
};

/**Next lines are for declare pedal on/off state LEDS..the leds reflects the pedal effect position
pedal buttons */
const pin_t ledPins[] = { 22, 23, 24, 25, 26, 27, 28, 29 }; //led pins connected to digital outputs 22-29 in arduino

template <class T, size_t N> constexpr size_t length(T (&)[N]) { return N; }

static_assert(length(pedalswitches) == length(ledPins),
"Error: requires same number of buttons as LEDs");


void setup() {

Control_Surface.begin(); // Control surface library init

for (auto pin : ledPins) //Set the pinMode to output for all LEDs

pinMode(pin, OUTPUT);
pinMode(5,INPUT_PULLUP);
pinMode(6,INPUT_PULLUP);
pinMode(7,INPUT_PULLUP);
pinMode(14,INPUT_PULLUP);
pinMode(15,INPUT_PULLUP);
pinMode(mux2.pin(0),INPUT_PULLUP);
pinMode(mux2.pin(1),INPUT_PULLUP);
pinMode(mux2.pin(2),INPUT_PULLUP);
pinMode(mux2.pin(3),INPUT_PULLUP);
pinMode(mux2.pin(4),INPUT_PULLUP);
pinMode(mux2.pin(5),INPUT_PULLUP);
pinMode(mux2.pin(6),INPUT_PULLUP);
pinMode(mux2.pin(7),INPUT_PULLUP);
pinMode(mux2.pin(8),INPUT_PULLUP);
pinMode(mux2.pin(9),INPUT_PULLUP);
pinMode(mux2.pin(10),INPUT_PULLUP);
pinMode(mux2.pin(11),INPUT_PULLUP);
pinMode(mux2.pin(12),INPUT_PULLUP);
pinMode(mux2.pin(13),INPUT_PULLUP);
pinMode(mux2.pin(14),INPUT_PULLUP);
pinMode(mux2.pin(15),INPUT_PULLUP);
}

void loop() {

Control_Surface.loop();

for (size_t i = 0; i < length(pedalswitches); ++i)
// Update the LED states to reflect the toggled switch states
digitalWrite(ledPins, pedalswitches.getState() ? LOW : HIGH);
}