mirror of
https://git.alemi.dev/cv-keyboard.git
synced 2024-09-19 18:34:07 +02:00
Cleaned code. Capacitive Buttons have been reimplemented and are now easily scalable
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parent
7c7b0cf116
commit
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1 changed files with 48 additions and 115 deletions
163
cvkeyboard.ino
163
cvkeyboard.ino
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@ -1,24 +1,7 @@
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#define C 22
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#define Db 24
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#define D 26
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#define Eb 28
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#define E 30
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#define F 32
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#define Gb 34
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#define G 36
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#define Ab 38
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#define A 40
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#define Bb 42
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#define B 44
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#define testLed 13
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#define Oct1 12
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#define Oct2 9
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#define Oct3 8
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#define Oct4 10
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#define noteOffset 36
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#define DRUMNOTE 60
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#define MINUTE 60000
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#define MIDICLOCK 0xf8
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#include <CapacitiveSensor.h>
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#include <MIDI.h>
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@ -26,33 +9,39 @@
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MIDI_CREATE_DEFAULT_INSTANCE();
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typedef struct OctaveStatus {
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typedef struct OctaveStatus { // This struct is for an octave status. Each bool is for 1 note
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bool stat[12];
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int nOct;
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} octst;
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int note[12] = {
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C, Db, D, Eb, E, F, Gb, G, Ab, A, Bb, B }; // Note Pins above
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int octave[4] = {
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Oct1, Oct2, Oct3, Oct4 }; // Octave Pins above
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int clock = 0; // Used if arp to cycle through notes
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octst buff;
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bool kboard[49];
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bool raw; // Global Settings. RAW = signal is sent when key is detected
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byte velocity = 100;
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byte channel = 1;
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byte midi_clock = 0xf8;
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byte dataIn;
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int bpm = 360;
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unsigned long nextBeat = 0;
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unsigned long gate = 50; //ms of keypress if arpeggiator
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int npressed;
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bool bu1, bu2, bu3;
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// PIN DECLARATIONS
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int note[12] = { // Pins used to read each note (C is 0, B is 11)
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22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44 };
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int octave[4] = { // Pins associated to each octave's contact bar
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12, 9, 8, 10 };
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int sendPin[3] = { // Pins used as sender for capacitive touch buttons
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5, 4, 16 };
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int receivePin[3] = { // Pins used as receiver for capacitive touch buttons
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6, 3, 17 };
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// GLOBAL SETTINGS
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bool raw; // Signal is sent when key is detected
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// PLACEHOLDERS
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byte velocity = 100; //
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byte channel = 1; //
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int bpm = 360; //
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unsigned long gate = 50; // ms of keypress if arpeggiator
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unsigned long nextBeat = 0; // Used to keep track of beats. Useless if receiving MIDI clock.
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// SYSTEM VARIABLES
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int clock = 0; // Used if arp to cycle through notes
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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[49]; // Last status of keyboard
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bool bCapStat[3]; // Last status of Capacitive Buttons
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CapacitiveSensor* bCap[3];
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CapacitiveSensor b1 = CapacitiveSensor(5, 6);
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CapacitiveSensor b2 = CapacitiveSensor(4, 3);
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CapacitiveSensor b3 = CapacitiveSensor(16, 17);
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void setup() {
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for (int cOctave = 0; cOctave < 4; cOctave++) {
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@ -61,23 +50,25 @@ void setup() {
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for (int cNote = 0; cNote < 12; cNote++) {
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pinMode(note[cNote], INPUT);
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}
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for (int cButton = 0; cButton < 3; cButton++) { // Capacitive Buttons configuration
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bCap[cButton] = new CapacitiveSensor(sendPin[cButton], receivePin[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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bCapStat[cButton] = LOW; // Button starts LOW
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}
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for (int cStat = 0; cStat < 49; cStat++) kboard[cStat] = LOW; // All keyboard keys start LOW
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MIDI.begin(MIDI_CHANNEL_OFF);
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Serial.begin(115200);
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nextBeat = millis() + (MINUTE / bpm);
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pinMode(2, INPUT_PULLUP);
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for (int cStat = 0; cStat < 49; cStat++) kboard[cStat] = LOW;
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nextBeat = 0;
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b1.set_CS_AutocaL_Millis(0xFFFFFFFF);
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b2.set_CS_AutocaL_Millis(0xFFFFFFFF);
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b3.set_CS_AutocaL_Millis(0xFFFFFFFF);
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bu1 = LOW;
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bu2 = LOW;
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bu3 = LOW;
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pinMode(2, INPUT_PULLUP); // Used for RAW switch
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}
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void loop() {
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scanButtons();
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for (int cButton = 0; cButton < 3; cButton++) {
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bCapStat[cButton] = evalButton(bCap[cButton], bCapStat[cButton], DRUMNOTE + cButton);
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}
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npressed = 0;
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raw = digitalRead(2);
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@ -88,8 +79,7 @@ void loop() {
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}
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if (raw) return;
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if (npressed < 1) return;
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dataIn = Serial.read();
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if (dataIn == midi_clock) {
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if (Serial.read() == MIDICLOCK) {
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clock++;
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while (kboard[clock] == LOW) {
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clock++;
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@ -103,7 +93,7 @@ void loop() {
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octst scan(int nOct) { // This function reads the 12 note pins and returns a struct
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int c; // with 1 bool for each note
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int c; // with 1 bool for each note
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octst output;
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output.nOct = nOct;
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@ -128,13 +118,6 @@ int eval(octst input) {
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return pressed;
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}
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void serialDebug(octst input) { // Prints on the Serial Monitor the 12 bits just read
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for (int c = 0; c < 12; c++) {
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Serial.print(input.stat[c]);
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}
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Serial.println("");
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}
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void playNote(int c, bool status) {
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byte n = c + noteOffset;
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if (status == HIGH) {
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@ -145,70 +128,20 @@ void playNote(int c, bool status) {
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}
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}
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void scanButtons() {
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long sensor1 = b1.capacitiveSensor(1);
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long sensor2 = b2.capacitiveSensor(1);
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long sensor3 = b3.capacitiveSensor(1);
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if (sensor1 > 10) {
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if (!bu1) {
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MIDI.sendNoteOn(95, velocity, 7);
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bu1 = HIGH;
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}
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}
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else {
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if (bu1) {
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MIDI.sendNoteOff(95, velocity, 7);
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bu1 = LOW;
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}
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}
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if (sensor2 > 10) {
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if (!bu2) {
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MIDI.sendNoteOn(97, velocity, 7);
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bu2 = HIGH;
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}
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}
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else {
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if (bu2) {
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MIDI.sendNoteOff(97, velocity, 7);
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bu2 = LOW;
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}
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}
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if (sensor3 > 10) {
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if (!bu3) {
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MIDI.sendNoteOn(99, velocity, 7);
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bu3 = HIGH;
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}
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}
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else {
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if (bu3) {
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MIDI.sendNoteOff(99, velocity, 7);
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bu3 = LOW;
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}
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}
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/*bu1 = evalButton(b1, bu1, 95);
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bu2 = evalButton(b2, bu2, 97);
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bu3 = evalButton(b3, bu3, 99);*/
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}
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bool evalButton(CapacitiveSensor b, bool value, int note) {
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long sensor = b.capacitiveSensor(1);
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bool evalButton(CapacitiveSensor* b, bool value, byte note) {
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long sensor = b->capacitiveSensor(1);
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if (sensor > 15) {
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if (value) return HIGH;
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else {
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MIDI.sendNoteOn(note, velocity, 7);
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MIDI.sendNoteOn(note, velocity, (byte)7);
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return HIGH;
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}
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}
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else {
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if (!value) return LOW;
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else {
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MIDI.sendNoteOff(note, velocity, 7);
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MIDI.sendNoteOff(note, velocity, (byte)7);
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return LOW;
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}
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}
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