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https://git.alemi.dev/cv-keyboard.git
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Various improvements and debug leftovers
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parent
35950fd11b
commit
68d2631f33
1 changed files with 72 additions and 23 deletions
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@ -2,12 +2,15 @@
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#include <MIDI.h>
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#include <HID.h>
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#define BPQN 24 // Ableton sends 24, VCV rack only one, by standard should be 24?
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#define NOTEOffset 36
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#define drumOffset 60
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#define MINUTE 60000
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#define MIDICLOCK 0xf8
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#define MAXKEYS 48
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#define MAXDPAD 3
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#define MAXSTEP 16
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MIDI_CREATE_DEFAULT_INSTANCE();
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@ -21,6 +24,7 @@ typedef struct OCTAVEStatus { // This struct is for an OCTAVE status. Each
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typedef struct SequencerStep {
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bool kboard_s[MAXKEYS];
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bool dpad_s[MAXDPAD];
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unsigned short stepnumber;
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link next;
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} step;
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@ -49,16 +53,18 @@ int bpm = 360; //
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// SEQUENCER POINTERS
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link head, tail, current;
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link head = NULL;
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link current = NULL;
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// SYSTEM VARIABLES
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int nstep = 0; // Keeps track of the sequencer steps
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unsigned short nstep = 0; // Keeps track of the sequencer steps
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int arp = 0; // Keeps track of last played NOTE if arpeggiating
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int midiclock = 0; // Used to sync with MIDI clock
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bool add_step = LOW; // This is used to remember the addition of a step
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int sem_beat = 0; // Basic semaphore used to sync with MIDI beat
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int sem_gate = 0; // Basic semaphore used for gate timing
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unsigned long last_gate = 0; // Gate start time for last sequencer step
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unsigned long gate_length = 200; // ms of keypress if arpeggiator
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unsigned long gate_length = 500; // ms of keypress if arpeggiator
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bool dpadhit = LOW; // If any drum pad has been hit in this cycle, this is true
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int npressed; // Number of keys pressed, used to avoid doing anything when no keys are pressed
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bool kboard[MAXKEYS]; // Last status of keyboard
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@ -73,7 +79,7 @@ void setup() {
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for (int cButton = 0; cButton < MAXDPAD; cButton++) { // Capacitive Buttons configuration
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bCap[cButton] = new CapacitiveSensor(SEND[cButton], RECEIVE[cButton]); // Initialized
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bCap[cButton]->set_CS_AutocaL_Millis(0xFFFFFFFF); // No recalibration
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bCap[cButton]->set_CS_Timeout_Millis(200); // Timeout set to 200ms (instead of 2s)
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bCap[cButton]->set_CS_Timeout_Millis(10); // Timeout set to 20ms (instead of 2s)
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dpad[cButton] = LOW; // Button starts LOW
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}
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@ -84,36 +90,63 @@ void setup() {
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pinMode(OW, INPUT_PULLUP); // Used for overwrite switch
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pinMode(ADD, INPUT_PULLUP); // Used for overwrite switch
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for (int i = 0; i < 16; i++) { // Boot up fancyness!
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display(i);
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delay(200);
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}
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display(nstep);
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}
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void loop() {
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// Serial.println(midiclock);
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// Serial.print("Start | ");
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// Serial.print(millis());
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// Serial.print('\n');
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sync();
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if (current == head) nstep = 0;
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else nstep++;
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display(nstep);
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add_step = (add_step || !digitalRead(ADD));
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// Serial.print("SPEPS DONE | ");
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// Serial.print(millis());
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// Serial.print('\n');
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if (sem_beat > 0) {
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sem_beat--;
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if (sem_gate > 0) { // If step was shorter than gate, close all open notes before next step
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sem_gate--;
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for (int i = 0; i < MAXKEYS; i++) if (current->kboard_s[i]) playNOTE(i, !current->kboard_s[i]);
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for (int i = 0; i < MAXDPAD; i++) if (current->dpad_s[i]) playDrum(i, !current->dpad_s[i]);
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}
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if (digitalRead(ADD)) insertStep();
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if (add_step) {
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add_step = LOW;
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if (nstep < MAXSTEP) insertStep();
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}
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//if (digitalRead(ADD) && !digitalRead(OW)) deleteStep(); // Placeholder because I miss a button
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nextStep();
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display(current->stepnumber);
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if (current != NULL) { // Play all step notes and begin counting for gate
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for (int i = 0; i < MAXKEYS; i++) if (current->kboard_s[i]) playNOTE(i, current->kboard_s[i]);
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for (int i = 0; i < MAXDPAD; i++) if (current->dpad_s[i]) playDrum(i, current->dpad_s[i]);
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last_gate = millis();
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sem_gate++;
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}
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// Serial.print("BEAT ELABORATED AND PLAYED | ");
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// Serial.print(millis());
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// Serial.print('\n');
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}
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if (sem_gate > 0 && (millis() - last_gate) > gate_length) {
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sem_gate--;
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for (int i = 0; i < MAXKEYS; i++) if (current->kboard_s[i]) playNOTE(i, !current->kboard_s[i]);
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for (int i = 0; i < MAXDPAD; i++) if (current->dpad_s[i]) playDrum(i, !current->dpad_s[i]);
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// Serial.print("GATE FINISHED | ");
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// Serial.print(millis());
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// Serial.print('\n');
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}
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dpadhit = LOW;
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for (int cButton = 0; cButton < MAXDPAD; cButton++) {
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dpad[cButton] = evalButton(bCap[cButton], dpad[cButton], cButton);
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@ -126,10 +159,16 @@ void loop() {
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npressed += eval(scan(cOCTAVE));
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digitalWrite(OCTAVE[cOCTAVE], LOW);
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}
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// Serial.print("READ KEYBOARD | ");
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// Serial.print(millis());
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// Serial.print('\n');
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if (digitalRead(OW)) {
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if (npressed > 0) for (int i = 0; i < MAXKEYS; i++) current->kboard_s[i] = kboard[i];
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if (dpadhit) for (int i = 0; i < MAXDPAD; i++) current->dpad_s[i] = dpad[i];
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// Serial.print("OVERWRITTEN STUFF | ");
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// Serial.print(millis());
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// Serial.print('\n');
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}
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}
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@ -149,13 +188,14 @@ octst scan(int nOct) { // This function reads the 12 NOTE pins and retu
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void display(int number){
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for(int i = 0; i < 4; i++) {
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digitalWrite(LEDS[i], number & 1);
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number >> 1;
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}
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digitalWrite(LEDS[i], number & (unsigned short) 1);
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number = number >> 1;
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}
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}
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bool evalButton(CapacitiveSensor* b, bool value, int note_number) {
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long sensor = b->capacitiveSensor(1);
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// Serial.println(sensor);
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if (sensor > 15) {
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if (value) return HIGH;
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@ -212,12 +252,14 @@ void playDrum(int c, bool status) {
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// Sync functions
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void sync() {
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if (Serial.available() && Serial.read() == MIDICLOCK) {
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//sem_beat++;
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midiclock++;
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if (midiclock == 24){
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midiclock = 0;
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sem_beat++;
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if (Serial.available()) {
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if (Serial.read() == MIDICLOCK) {
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//sem_beat++;
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midiclock++;
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if (midiclock == BPQN){
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midiclock = 0;
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sem_beat++;
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}
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}
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}
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}
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@ -230,28 +272,35 @@ link newStep() {
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bool insertStep() {
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link newS = newStep();
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link buffer;
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if (newS == NULL) {
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free(newS);
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return LOW;
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}
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for (int i = 0; i < MAXKEYS; i++) newS->kboard_s[i] = kboard[i];
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for (int i = 0; i < MAXDPAD; i++) newS->dpad_s[i] = dpad[i];
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for (int i = 0; i < MAXKEYS; i++) newS->kboard_s[i] = LOW;
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for (int i = 0; i < MAXDPAD; i++) newS->dpad_s[i] = LOW;
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if (nstep == 0) {
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if (current == NULL) {
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newS->next = newS;
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newS->stepnumber = (unsigned short) 0;
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current = newS;
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head = newS;
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nstep = 1;
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}
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else {
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newS->next = current->next;
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current->next = newS;
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newS->stepnumber = nstep;
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buffer = current;
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while (buffer->next != head) buffer = buffer->next;
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buffer->next = newS;
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newS->next = head;
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nstep++;
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}
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nstep++;
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return HIGH;
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}
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void nextStep() {
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if (current == NULL) return;
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current = current->next;
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}
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