updated DubSiren the same way as FLMNG. Added MIDI settings, moved some stuff to config.h

.gitignore

@@ -1 +1,2 @@
 */build/arduino.avr.nano
+.DS_Store

DubSiren/DubSiren.ino

@@ -19,13 +19,14 @@
 #include <MetaOscil.h>
 #include <tables/sin2048_int8.h>
 #include <tables/square_no_alias_2048_int8.h>
-//#include <tables/square_analogue512_int8.h>
 #include <StateVariable.h>
 #include <ADSR.h>
 #include <mozzi_midi.h>
 #include <IntMap.h>
 #include <OverSample.h>
 #include <FixMath.h>
+#include <EEPROM.h>
+#include "config.h"
 
 //Band limited oscilator tables for aliasing-free Meta Oscilator
 #include <tables/BandLimited_SQUARE/512/square_max_90_at_16384_512_int8.h> 
@@ -64,31 +65,6 @@ Oscil <SQUARE_MAX_2730_AT_16384_512_NUM_CELLS, MOZZI_AUDIO_RATE> aSq2730(SQUARE_
 Oscil <SQUARE_MAX_8192_AT_16384_512_NUM_CELLS, MOZZI_AUDIO_RATE> aSq8192(SQUARE_MAX_8192_AT_16384_512_DATA);
 MetaOscil<SQUARE_MAX_90_AT_16384_512_NUM_CELLS, MOZZI_AUDIO_RATE, 16> aSquare {&aSq90, &aSq101, &aSq122, &aSq138, &aSq154, &aSq174, &aSq210, &aSq264, &aSq327, &aSq431, &aSq546, &aSq744, &aSq1170, &aSq1638, &aSq2730, &aSq8192};
 
-
-//Settings
-const int pitchSubSteps = 32; //set how many steps are there between semitones. set to 1 to quantize to semitones
-const int driveAmount = 450;
-#define MIDI_CHANNEL MIDI_CHANNEL_OMNI 
-#define MOZZI_CONTROL_RATE 1024
-
-//Hardware Definitions
-#define Knob1   A6  //LFO Frequency
-#define Knob2   A4  //LFO Intensity
-#define Knob3   A2  //LPF Resonance
-#define Knob4   A0  //LPF Cutoff
-#define KnobA   A5  //Attack
-#define KnobDR  A3  //Decay and Release
-#define KnobS   A1  //Sustain
-#define CVIn    A7  //CV input and Pitch knob
-#define GateIn  10 
-#define EnvSwitch 11
-#define DroneSwitch 12
-#define LED     5
-
-#define MOZZI_ANALOG_READ_RESOLUTION 10
-
-MIDI_CREATE_DEFAULT_INSTANCE();
-
 IntMap kMapNote(   0, 4095, 24 * pitchSubSteps, 84 * pitchSubSteps );
 IntMap kMapLFOSpeed(     0, 1023, 500, 20000 );
 IntMap kMapFreqMod(      0, 1023, 0,   1023  );
@@ -111,6 +87,8 @@ byte gain;
 bool MIDINotePlaying;
 bool gateIsHigh = false;
 float noteFreq;
+byte MIDIChannel;
+byte memCode = "a";
 
 void MIDINoteOn(byte channel, byte note, byte velocity) {
   noteFreq = mtof((int) note);
@@ -141,9 +119,83 @@ void setup(){
   pinMode(EnvSwitch, INPUT_PULLUP);
   pinMode(DroneSwitch, INPUT_PULLUP);
 
+  //MIDI Channel setup
+  if(!digitalRead(GateIn)) { //&& !digitalRead(DroneSwitch) && !digitalRead(EnvSwitch)) { //MIDI setup mode, first knob you rotate = MIDI channel
+    int knob1Orig = analogRead(Knob1);
+    int knob2Orig = analogRead(Knob2);
+    int knob3Orig = analogRead(Knob3);
+    int knob4Orig = analogRead(Knob4);
+    int knobAOrig = analogRead(KnobA);
+    int knobDROrig = analogRead(KnobDR);
+    int knobSOrig = analogRead(KnobS);
+    int threshhold = 50; //To reduce noise from the input, needs testing and fine-tuning
+    while(true) {
+      if(abs(analogRead(Knob1) - knob1Orig) > threshhold) { 
+        MIDIChannel = 1;
+        break;
+      } else if (abs(analogRead(Knob2) - knob2Orig) > threshhold) {
+        MIDIChannel = 2;
+        break;
+      } else if (abs(analogRead(Knob3) - knob3Orig) > threshhold) {
+        MIDIChannel = 3;
+        break;
+      } else if (abs(analogRead(Knob4) - knob4Orig) > threshhold) {
+        MIDIChannel = 4;
+        break;
+      } else if (abs(analogRead(KnobA) - knobAOrig) > threshhold) {
+        MIDIChannel = 5;
+        break;
+      } else if (abs(analogRead(KnobDR) - knobDROrig) > threshhold) {
+        MIDIChannel = 6;
+        break;
+      } else if (abs(analogRead(KnobS) - knobSOrig) > threshhold) {
+        MIDIChannel = 7;
+        break;
+      }
+      digitalWrite(LED, HIGH); //slow blinking to indicate the setup mode
+      delay(500);
+      digitalWrite(LED, LOW);
+      delay(500);
+    }
+    EEPROM.write(0, MIDIChannel);
+    EEPROM.write(1023, memCode);
+    digitalWrite(LED, LOW);
+    delay(150);
+    for(int i = 0; i < MIDIChannel; i ++) { //fast blink to indicate saved MIDI channel
+      digitalWrite(LED, HIGH);
+      delay(150);
+      digitalWrite(LED, LOW);
+      delay(150);
+    }
+    delay(500);
+  } else if (EEPROM.read(1023) == memCode) { 
+    MIDIChannel = EEPROM.read(0);
+  } else { //Save default MIDI Channel to EEPROM if it wasn't set
+    MIDIChannel = 1; //channel 1 by default
+    EEPROM.write(0, MIDIChannel);
+    EEPROM.write(1023, memCode);
+  }
+
+  disconnectDigitalIn(Knob1);
+  disconnectDigitalIn(Knob2);
+  disconnectDigitalIn(Knob3);
+  disconnectDigitalIn(Knob4);
+  disconnectDigitalIn(KnobA);
+  disconnectDigitalIn(KnobDR);
+  disconnectDigitalIn(KnobS);
+  disconnectDigitalIn(CVIn);
+
   MIDI.setHandleNoteOn(MIDINoteOn);
   MIDI.setHandleNoteOff(MIDINoteOff);
-  MIDI.begin(MIDI_CHANNEL);
+
+  MIDI.setHandleClock(nullptr);
+  MIDI.setHandleStart(nullptr);
+  MIDI.setHandleStop(nullptr);
+  MIDI.setHandleContinue(nullptr);
+  MIDI.setHandleControlChange(nullptr);
+
+  MIDI.begin(MIDIChannel);
+  MIDI.turnThruOff();
 
   aSquare.setCutoffFreqs(90, 101, 122, 138, 154, 174, 210, 264, 327, 431, 546, 744, 1170, 1638, 2730, 8192);
 

DubSiren/config.h

@@ -0,0 +1,22 @@
+//Settings
+const int pitchSubSteps = 32; //set how many steps are there between semitones. set to 1 to quantize to semitones
+const int driveAmount = 450;
+#define MOZZI_CONTROL_RATE 1024
+
+//Hardware Definitions
+#define Knob1   A6  //Intensity
+#define Knob2   A4  //Modulator frequency ratio/Harmonics
+#define Knob3   A2  //LFO Frequency
+#define Knob4   A0  //LFO Shape
+#define KnobA   A5  //Attack
+#define KnobDR  A3  //Decay and Release
+#define KnobS   A1  //Sustain
+#define CVIn    A7  //CV input and Pitch knob
+#define GateIn  10
+#define EnvSwitch 11
+#define DroneSwitch 12
+#define LED     5
+
+#define MOZZI_ANALOG_READ_RESOLUTION 10
+
+MIDI_CREATE_DEFAULT_INSTANCE();

FLMNG/FLMNG.ino

@@ -4,14 +4,16 @@
 // Code is partly based on Knob_LightLevel_x2_FMSynth example from Mozzi Library
 // 
 // Although the code designed to work on Sitka Instruments WS-1.0 synth, it should  
-// be pretty easy to adapt to run on other arduino/mozzi-based setups
+// be pretty easy to adapt to run on other arduino/mozzi-based setups.
+// Edit config.h to match your setup.
 //
 // This code is licenced under GPL v3 or later
 
 //ToDo:
-//test how accurate and fast oversampling is
-//smooth harmonics knob?
-//rework LFO/Intensity so when LFO rate is 0, intensidy doesn't depend on its phase
+//optimize MIDI input (maybe neohwserial and this parser might help https://github.com/eclab/grains/tree/main/midi)
+//add ramp LFO
+//add uneven rations (like 3:2, 3:5)
+//rework LFO/Intensity so when LFO rate is 0, intensity doesn't depend on its phase
 
 #include <Mozzi.h>
 #include <MIDI.h>
@@ -25,31 +27,8 @@
 #include <mozzi_midi.h>
 #include <IntMap.h>
 #include <OverSample.h>
-
-//Settings
-const int pitchSubSteps = 16; //set how many steps are there between semitones. set to 1 to quantize to semitones
-const int driveAmount = 350;
-const bool oversamplingEnabled = false; //makes V/OCT tracking more precise, but adds a little portamento
-#define MIDI_CHANNEL 1 //MIDI_CHANNEL_OMNI
-#define MOZZI_CONTROL_RATE 1024
-
-//Hardware Definitions
-#define Knob1   A6  //Intensity
-#define Knob2   A4  //Modulator frequency ratio/Harmonics
-#define Knob3   A2  //LFO Frequency
-#define Knob4   A0  //LFO Shape
-#define KnobA   A5  //Attack
-#define KnobDR  A3  //Decay and Release
-#define KnobS   A1  //Sustain
-#define CVIn    A7  //CV input and Pitch knob
-#define GateIn  10 
-#define EnvSwitch 11
-#define DroneSwitch 12
-#define LED     5
-
-#define MOZZI_ANALOG_READ_RESOLUTION 10
-
-MIDI_CREATE_DEFAULT_INSTANCE();
+#include <EEPROM.h>
+#include "config.h"
 
 IntMap kMapCarrierNote(  0, 4095, 24 * pitchSubSteps,  84 * pitchSubSteps );
 IntMap kMapIntensity(    0, 1023, 10,  350   );
@@ -75,6 +54,8 @@ bool MIDINotePlaying;
 bool gateIsHigh = false;
 float carrierFreq;
 long FMIntensity; // carries control info from updateControl to updateAudio
+byte MIDIChannel;
+byte memCode = "a";
 
 void MIDINoteOn(byte channel, byte note, byte velocity) {
   carrierFreq = mtof((int) note);
@@ -99,15 +80,89 @@ long softClip(long input) {
   }
 }
 
-void setup(){
+void setup() {
   pinMode(LED, OUTPUT);
   pinMode(GateIn, INPUT_PULLUP);
   pinMode(EnvSwitch, INPUT_PULLUP);
   pinMode(DroneSwitch, INPUT_PULLUP);
 
+  //MIDI Channel setup
+  if(!digitalRead(GateIn)) { //&& !digitalRead(DroneSwitch) && !digitalRead(EnvSwitch)) { //MIDI setup mode, first knob you rotate = MIDI channel
+    int knob1Orig = analogRead(Knob1);
+    int knob2Orig = analogRead(Knob2);
+    int knob3Orig = analogRead(Knob3);
+    int knob4Orig = analogRead(Knob4);
+    int knobAOrig = analogRead(KnobA);
+    int knobDROrig = analogRead(KnobDR);
+    int knobSOrig = analogRead(KnobS);
+    int threshhold = 50; //To reduce noise from the input, needs testing and fine-tuning
+    while(true) {
+      if(abs(analogRead(Knob1) - knob1Orig) > threshhold) { 
+        MIDIChannel = 1;
+        break;
+      } else if (abs(analogRead(Knob2) - knob2Orig) > threshhold) {
+        MIDIChannel = 2;
+        break;
+      } else if (abs(analogRead(Knob3) - knob3Orig) > threshhold) {
+        MIDIChannel = 3;
+        break;
+      } else if (abs(analogRead(Knob4) - knob4Orig) > threshhold) {
+        MIDIChannel = 4;
+        break;
+      } else if (abs(analogRead(KnobA) - knobAOrig) > threshhold) {
+        MIDIChannel = 5;
+        break;
+      } else if (abs(analogRead(KnobDR) - knobDROrig) > threshhold) {
+        MIDIChannel = 6;
+        break;
+      } else if (abs(analogRead(KnobS) - knobSOrig) > threshhold) {
+        MIDIChannel = 7;
+        break;
+      }
+      digitalWrite(LED, HIGH); //slow blinking to indicate the setup mode
+      delay(500);
+      digitalWrite(LED, LOW);
+      delay(500);
+    }
+    EEPROM.write(0, MIDIChannel);
+    EEPROM.write(1023, memCode);
+    digitalWrite(LED, LOW);
+    delay(150);
+    for(int i = 0; i < MIDIChannel; i ++) { //fast blink to indicate saved MIDI channel
+      digitalWrite(LED, HIGH);
+      delay(150);
+      digitalWrite(LED, LOW);
+      delay(150);
+    }
+    delay(500);
+  } else if (EEPROM.read(1023) == memCode) { 
+    MIDIChannel = EEPROM.read(0);
+  } else { //Save default MIDI Channel to EEPROM if it wasn't set
+    MIDIChannel = 1; //channel 1 by default
+    EEPROM.write(0, MIDIChannel);
+    EEPROM.write(1023, memCode);
+  }
+
+  disconnectDigitalIn(Knob1);
+  disconnectDigitalIn(Knob2);
+  disconnectDigitalIn(Knob3);
+  disconnectDigitalIn(Knob4);
+  disconnectDigitalIn(KnobA);
+  disconnectDigitalIn(KnobDR);
+  disconnectDigitalIn(KnobS);
+  disconnectDigitalIn(CVIn);
+
   MIDI.setHandleNoteOn(MIDINoteOn);
   MIDI.setHandleNoteOff(MIDINoteOff);
-  MIDI.begin(MIDI_CHANNEL);
+
+  MIDI.setHandleClock(nullptr);
+  MIDI.setHandleStart(nullptr);
+  MIDI.setHandleStop(nullptr);
+  MIDI.setHandleContinue(nullptr);
+  MIDI.setHandleControlChange(nullptr);
+
+  MIDI.begin(MIDIChannel);
+  MIDI.turnThruOff();
 
   startMozzi();
 
@@ -117,6 +172,11 @@ void setup(){
 }
 
 void updateControl(){
+
+  for(int i=0; i<10; i++) { // Hacky way to drain the buffer faster
+    MIDI.read();
+  }
+
   //Get Control Values
   int CVInVal = mozziAnalogRead(CVIn);
   int knob1Val = mozziAnalogRead(Knob1);
@@ -223,7 +283,6 @@ void updateControl(){
     gain = 255;
   }
 
-  MIDI.read();
 }
 
 AudioOutput updateAudio(){

FLMNG/config.h

@@ -0,0 +1,23 @@
+//Settings
+const int pitchSubSteps = 16; //set how many steps are there between semitones. set to 1 to quantize to semitones
+const int driveAmount = 350;
+const bool oversamplingEnabled = false; //makes V/OCT tracking more precise, but adds a little portamento
+#define MOZZI_CONTROL_RATE 1024
+
+//Hardware Definitions
+#define Knob1   A6  //Intensity
+#define Knob2   A4  //Modulator frequency ratio/Harmonics
+#define Knob3   A2  //LFO Frequency
+#define Knob4   A0  //LFO Shape
+#define KnobA   A5  //Attack
+#define KnobDR  A3  //Decay and Release
+#define KnobS   A1  //Sustain
+#define CVIn    A7  //CV input and Pitch knob
+#define GateIn  10
+#define EnvSwitch 11
+#define DroneSwitch 12
+#define LED     5
+
+#define MOZZI_ANALOG_READ_RESOLUTION 10
+
+MIDI_CREATE_DEFAULT_INSTANCE();