alemi/cv-keyboard
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Commited previous testing branch

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Completely rewriting my code to make it more modular and debuggable. Pushing to master previous status because the code currently in master is just way too old
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əlemi 2019-03-04 18:53:16 +01:00 committed by GitHub
parent 1a37d52310
commit c3ec7b1bb0
1 changed files with 112 additions and 28 deletions
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140
cvkeyboard.ino
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@ -18,24 +18,37 @@
#define Oct4 10 #define Oct4 10
#define noteOffset 36 #define noteOffset 36
#define offCounter 100 #define offCounter 0
#define MINUTE 60000
#include <MIDI.h> #include <MIDI.h>
#include <HID.h> #include <HID.h>
MIDI_CREATE_DEFAULT_INSTANCE(); MIDI_CREATE_DEFAULT_INSTANCE();
int note[12] = { int note[12] = {
C, Db, D, Eb, E, F, Gb, G, Ab, A, Bb, B }; // Pin delle note : 0 -> C , 11 -> B C, Db, D, Eb, E, F, Gb, G, Ab, A, Bb, B }; // Note Pins above
int octave[4] = { int octave[4] = {
Oct1, Oct2, Oct3, Oct4 }; // Pin delle ottave : 0 -> 2 , 3 -> 5 Oct1, Oct2, Oct3, Oct4 }; // Octave Pins above
int noteCounter[49] = { 0 }; int noteCounter[49] = { 0 };
boolean status[49] = { LOW }; // Array di stato, aggiornato durante ogni ciclo. 0 -> C2 , 11 -> C3 , 23 -> C4 -> , 35 -> C5 , 48 -> C6 boolean status[49] = { LOW };
boolean flip[49] = { LOW }; boolean flip[49] = { LOW };
boolean buffer = LOW; // Usato come buffer per lo stato di ogni pin, per non chiamare una lettura ogni volta. boolean buffer = LOW;
int octBuffer; // Usato per non ripetere l'aritmetica ad ogni accesso all'array di stato.
int octBuffer;
byte noteBuffer; byte noteBuffer;
byte velocity = 100; // Placeholder.
int channel = 7; // Placeholder.
byte velocity = 100; // Placeholder. Will need something to change it
int channel = 7; // Placeholder. Will need something to change it
int bpm = 120; // Placeholder. Will need something to change it
int gate = 300; // Placeholder. Will need something to change it
unsigned long nextBeat = 0;
int step = 0;
int lastStep = 0;
boolean notePlayed = LOW;
void setup() void setup()
@ -48,11 +61,86 @@ void setup()
} }
MIDI.begin(MIDI_CHANNEL_OFF); MIDI.begin(MIDI_CHANNEL_OFF);
Serial.begin(115200); Serial.begin(115200);
nextBeat = millis() + (MINUTE / bpm);
} }
void loop() { void loop() {
if (millis() < nextBeat) return;
notePlayed = LOW;
while (notePlayed == LOW) {
cleanScan();
arp();
}
nextBeat += (MINUTE / bpm);
}
void cleanScan() {
int c;
for (c = 0; c < 49; c++) noteCounter[c] = 0;
scan(); scan();
for (c = 0; c < 49; c++) {
if (status[c] == HIGH) noteCounter[c]++;
}
scan();
for (c = 0; c < 49; c++) {
if (status[c] == HIGH) noteCounter[c]++;
}
scan();
for (c = 0; c < 49; c++) {
if (status[c] == HIGH) noteCounter[c]++;
}
for (c = 0; c < 49; c++) {
if (noteCounter[c] == 3) status[c] = HIGH;
else status[c] = LOW;
}
}
void send() {
for (int c = 48; c >= 0; c--) {
if (flip[c] == HIGH) {
flip[c] = LOW;
if (noteCounter[c] > 0) {
noteCounter[c]--;
}
else {
noteCounter[c] = offCounter;
noteBuffer = c + noteOffset;
if (status[c] == HIGH) {
MIDI.sendNoteOn(noteBuffer, velocity, channel);
}
else if (status[c] == LOW) {
MIDI.sendNoteOff(noteBuffer, velocity, channel);
}
}
}
}
}
void playNote(int c, boolean status) {
if (status == HIGH) {
MIDI.sendNoteOn(c + noteOffset, velocity, channel);
}
else if (status == LOW) {
MIDI.sendNoteOff(c + noteOffset, velocity, channel);
}
}
void arp() {
step++;
while (step < 49 && status[step] == LOW) {
step++;
}
if (step == 49) {
step = 0;
}
else {
playNote(lastStep, LOW);
playNote(step, HIGH);
lastStep = step;
notePlayed = HIGH;
}
return;
} }
void scan() { void scan() {
@ -62,31 +150,27 @@ void scan() {
for (int cNote = 0; cNote < 12; cNote++) { for (int cNote = 0; cNote < 12; cNote++) {
if (noteCounter[cNote + octBuffer] > 0) { buffer = digitalRead(note[cNote]);
noteCounter[cNote + octBuffer]--;
if (buffer ^ status[cNote + octBuffer]) {
status[cNote + octBuffer] = buffer;
flip[cNote + octBuffer] = HIGH;
} }
else { else {
noteCounter[cNote + octBuffer] = offCounter; flip[cNote + octBuffer] = LOW;
buffer = digitalRead(note[cNote]);
if (buffer ^ status[cNote + octBuffer]) {
status[cNote + octBuffer] = buffer;
flip[cNote + octBuffer] = HIGH;
noteBuffer = cNote + octBuffer + noteOffset;
if (buffer == HIGH) {
MIDI.sendNoteOn(noteBuffer, velocity, 1);
}
if (buffer == LOW) {
MIDI.sendNoteOff(noteBuffer, velocity, 1);
}
}
else {
flip[cNote + octBuffer] = LOW;
}
} }
} }
digitalWrite(octave[cOctave], LOW); digitalWrite(octave[cOctave], LOW);
} }
}
int nPressed() {
int c, n = 0;
for (c = 0; c < 49; c++) {
if (status[c] == HIGH) {
n++;
}
}
} }