Un contrôleur MIDI très DIY.

#include <MIDI.h>
#include <midi_defs.h>
#include <midi_message.h>
#include <midi_namespace.h>
#include <midi_settings.h>

MIDI_CREATE_INSTANCE(HardwareSerial, Serial, midiOut); // create a MIDI object called midiOut

double previous_Button;
double button_Time;
double blink_Time;
double previous_Blink_Time;
double previous_Message_Time;
double message_Time;

byte bank_Selected;
boolean button_State_A;
boolean button_State_B;

int pot_0;
int pot_1;
int pot_2;
int pot_3;
int pot_4;
int pot_5;

int old_pot_0;
int old_pot_1;
int old_pot_2;
int old_pot_3;
int old_pot_4;
int old_pot_5;

byte cc0;
byte cc1;
byte cc2;
byte cc3;
byte cc4;
byte cc5;

boolean midi_Send = 0;
boolean Led_State_A = 0;
boolean Led_State_B = 0;
boolean blink_Mode = 0;

byte midi_Ch;




void setup() {

cc0 = 1; // MOD Wheel
cc1 = 0; //
cc2 = 0; //
cc3 = 0; //
cc4 = 0; //
cc5 = 0; //
midi_Ch = 1;


pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, INPUT);
pinMode(5, INPUT);

blink_Button();

Serial.begin(31250); // setup serial for MIDI
}

void loop() {

check_Button();
check_Pot();


// digitalWrite( 2, button_State_A);
// digitalWrite( 3, button_State_B);

// digitalWrite( 2, LOW);
// digitalWrite( 2, HIGH);


blink_Time = millis();
if ( previous_Blink_Time + 30 < blink_Time) {
blink_Mode = !blink_Mode;
previous_Blink_Time = millis();
}


if ( midi_Send == 1 ) {
message_Time = millis();
if ( previous_Message_Time + 60 < message_Time) {
midi_Send = 0;
}
}



if ( midi_Send == 0 ) {
Led_State_A = button_State_A;
Led_State_B = button_State_B;
} else {

if ( blink_Mode == 0 && midi_Ch == 1)
Led_State_A = button_State_A;

if ( blink_Mode == 1 && midi_Ch == 1)
Led_State_A = !button_State_A;


if ( blink_Mode == 0 && midi_Ch == 2)
Led_State_B = button_State_B;

if ( blink_Mode == 1 && midi_Ch == 2)
Led_State_B = !button_State_B;

}


if ( midi_Send == 1 ) {
message_Time = millis();
if ( previous_Message_Time + 60 < message_Time) {
midi_Send = 0;
}
}



digitalWrite( 2, Led_State_A);
digitalWrite( 3, Led_State_B);





}





//***********************************************************************
void check_Button() {




boolean button_A = digitalRead(4);

if ( button_A == 1 ) {
button_Time = millis();


if ( button_Time > previous_Button + 1000 ) {
button_State_A = ! button_State_A;
Led_State_A = button_State_A;
previous_Button = millis();
}
}



boolean button_B = digitalRead(5);

if ( button_B == 1 ) {
button_Time = millis();


if ( button_Time > previous_Button + 1000 ) {
button_State_B = ! button_State_B;
previous_Button = millis();
}
}




bank_Selected = button_State_A + ( button_State_B * 2 );



switch (bank_Selected) {
case 0:

cc0 = 1; // MOD Wheel
cc1 = 0; //
cc2 = 0; //
cc3 = 0; //
cc4 = 0; //
cc5 = 0; //
midi_Ch = 1;
break;


case 1:
cc0 = 74; // general Midi FLT Cutoff
cc1 = 71; // general Midi FLT Q
cc2 = 73; // general midi attack
cc3 = 5; // general Midi portamento
cc4 = 1; // general Midi modulation wheel
cc5 = 72; // general Midi decay
midi_Ch = 1;
break;


case 2:
cc0 = 74; // FLT Cutoff
cc1 = 71; // FLT Q
cc2 = 59; // FLT mod
cc3 = 47; // FLT attack
cc4 = 52; // FLT decay
cc5 = 53; // FLT Sustain
midi_Ch = 2;
break;


case 3:
cc0 = 103; // LFO>osc
cc1 = 104; // LFO wave
cc2 = 102; // LFO rate
cc3 = 116; // PWM rate
cc4 = 117; // PWM mod
cc5 = 105; // LFO filter
midi_Ch = 2;
break;




}

}

//***********************************************************************
void check_Pot() {

if ( cc0 != 0 ) {
pot_0 = analogRead (A0);
if ( abs( pot_0 - old_pot_0) > 3) {
old_pot_0 = pot_0;
pot_0 = pot_0 >> 3;
midiOut.sendControlChange( cc0 , pot_0, midi_Ch );
midi_Send = 1;
previous_Message_Time = millis();
}
}

if ( cc1 != 0 ) {
pot_1 = analogRead (A1);
if ( abs( pot_1 - old_pot_1) > 3) {
old_pot_1 = pot_1;
pot_1 = pot_1 >> 3;
midiOut.sendControlChange( cc1 , pot_1, midi_Ch );
midi_Send = 1;
previous_Message_Time = millis();
}
}

if ( cc2 != 0 ) {
pot_2 = analogRead (A2);
if ( abs( pot_2 - old_pot_2) > 3) {
old_pot_2 = pot_2;
pot_2 = pot_2 >> 3;
midiOut.sendControlChange( cc2 , pot_2, midi_Ch );
midi_Send = 1;
previous_Message_Time = millis();
}
}

if ( cc3 != 0 ) {
pot_3 = analogRead (A3);
if ( abs( pot_3 - old_pot_3) > 3) {
old_pot_3 = pot_3;
pot_3 = pot_3 >> 3;
midiOut.sendControlChange( cc3 , pot_3, midi_Ch );
midi_Send = 1;
previous_Message_Time = millis();
}
}

if ( cc4 != 0 ) {
pot_4 = analogRead (A4);
if ( abs( pot_4 - old_pot_4) > 3) {
old_pot_4 = pot_4;
pot_4 = pot_4 >> 3;
midiOut.sendControlChange( cc4 , pot_4, midi_Ch );
midi_Send = 1;
previous_Message_Time = millis();
}
}

if ( cc5 != 0 ) {
pot_5 = analogRead (A5);
if ( abs( pot_5 - old_pot_5) > 3) {
old_pot_5 = pot_5;
pot_5 = pot_5 >> 3;
midiOut.sendControlChange( cc5 , pot_5, midi_Ch );
midi_Send = 1;
previous_Message_Time = millis();
}
}



}




void blink_Button() {

for (int i = 0; i <= 30; i++) {

digitalWrite( 2, HIGH);
digitalWrite( 3, LOW);
delay ( 30 );

digitalWrite( 2, LOW);
digitalWrite( 3, HIGH);
delay ( 30 );

}
digitalWrite( 3, LOW);





}