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Moog_Example/Moog_Example.ino

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+#include <OpenAudio_ArduinoLibrary.h>
+#include <Audio.h>
+#include <Wire.h>
+#include <SPI.h>
+#include <SD.h>
+#include <SerialFlash.h>
+
+// GUItool: begin automatically generated code
+AudioSynthWaveform       waveform1;      //xy=213,76
+AudioSynthWaveformDc     dc17;           //xy=222,178
+AudioSynthWaveformDc     dc16;           //xy=307,958
+AudioEffectMultiply      multiply1;      //xy=528,22
+AudioSynthWaveformDc     dc20;           //xy=534,179
+AudioMixer4              mixer7;         //xy=778,49
+AudioFilterMoog          moog1;          //xy=978,141
+AudioEffectFlange        flange1;        //xy=1113,375
+AudioEffectDelayExternal delayExt1;      //xy=1308,252
+AudioMixer4              mixer6;         //xy=1590,176
+AudioMixer4              mixer5;         //xy=1591,274
+AudioOutputI2S           i2s1;           //xy=1717,482
+AudioConnection          patchCord1(waveform1, 0, multiply1, 0);
+AudioConnection          patchCord2(dc17, 0, multiply1, 1);
+AudioConnection          patchCord3(multiply1, 0, mixer7, 0);
+AudioConnection          patchCord4(dc20, 0, moog1, 1);
+AudioConnection          patchCord5(mixer7, 0, moog1, 0);
+AudioConnection          patchCord6(moog1, 0, mixer6, 1);
+AudioConnection          patchCord7(flange1, delayExt1);
+AudioConnection          patchCord8(flange1, 0, i2s1, 1);
+AudioConnection          patchCord9(delayExt1, 0, mixer6, 0);
+AudioConnection          patchCord10(mixer6, 0, i2s1, 0);
+AudioControlSGTL5000     sgtl5000_1;     //xy=1554,569
+// GUItool: end automatically generated code
+
+
+int dcVal;
+
+//The setup function is called once when the system starts up
+void setup(void) {
+  //Start the USB serial link (to enable debugging)
+  Serial.begin(115200); delay(500);
+  Serial.println("Setup starting...");
+  sgtl5000_1.enable();
+  sgtl5000_1.volume(0.8);
+
+  //Allocate dynamically shuffled memory for the audio subsystem
+  AudioMemory(10);  AudioMemory_F32(10);
+//  sine2.begin(1,220,WAVEFORM_SAWTOOTH);
+  waveform1.begin(1,440,WAVEFORM_SAWTOOTH);
+  //Put your own setup code here
+  moog1.frequency(652.0,true);
+  moog1.resonance(4);
+  moog1.octave(2);
+  moog1.drive(1);
+  //End of setup
+  Serial.println("Setup complete.");
+};
+
+
+//After setup(), the loop function loops forever.
+//Note that the audio modules are called in the background.
+//They do not need to be serviced by the loop() function.
+void loop(void) {
+  volumeCheck();
+  dcValCheck();
+  hang(&waveform1,0,&dc17,0);
+};
+bool wastouched=false;
+void hang( AudioSynthWaveform *sine, AudioSynthWaveform *sinex, AudioSynthWaveformDc *dc, AudioSynthWaveformDc *dcx)
+{
+  int touch = touchRead(30);
+  bool touched = false;
+  if (touch > 5000)
+  {
+    touched = true;
+  }
+  if (touched)
+  {
+    {
+      Serial.print("touch ");
+      Serial.print(" = ");
+      Serial.println(touch);
+    }
+    wastouched=true;
+    //once a pad is touched, a value from the note frquency froma table is looked up via a 2D table
+    //with x corresponding to a scale and y corresponding to one of the eight notes on the drum.
+    sine->frequency(220);
+    dc->amplitude(1, 5);
+//    sinex->frequency(440);
+//    dcx->amplitude(1, 50);
+    dc20.amplitude(1, 50);
+   }
+  if (!touched&&wastouched)
+  {
+    //one the pad is released, the note fades out with a decay val set by the dcVal knob
+    dc->amplitude(0, dcVal);
+ //   dcx->amplitude(0,dcVal);
+    dc20.amplitude(-1,dcVal);
+    wastouched=false;
+  }
+
+}
+void volumeCheck()
+{
+  //check knob value for volume
+  int knob = analogRead(A7);
+  int fknob = analogRead(38);
+  int shift = map(analogRead(37), 0, 1023, 0, 440);
+  moog1.frequency(shift*4);
+  float vol = (float)knob / 1280.0;
+  float fBack = (float)fknob / 128;
+  moog1.resonance(fBack);
+  sgtl5000_1.volume(vol);
+}
+void dcValCheck()
+{
+  //check knob and set value as delay on dc constant for sine wave decay
+  dcVal = map(analogRead(A6), 0, 1023, 1, 1000);
+}