Example for testing the 2nd I2S output with the F32 library

examples/TestSecondI2SOutput/TestSecondI2SOutput.ino

@@ -0,0 +1,34 @@
+#include <Audio.h>
+#include <Wire.h>
+#include <SPI.h>
+#include <SD.h>
+#include <SerialFlash.h>
+#include "OpenAudio_ArduinoLibrary.h"
+
+// GUItool: begin automatically generated code
+AudioSynthWaveformSine_F32  sine2;          //xy=179,339
+AudioSynthWaveformSine_F32  sine1;          //xy=184,267
+AudioOutputI2S2_F32         audio_out;   //xy=600,261
+AudioConnection_F32         pc1(sine1, 0, audio_out, 0);
+AudioConnection_F32         pc2(sine2, 0, audio_out, 1);
+AudioControlSGTL5000        sgtl5000_1;     //xy=591,96
+// GUItool: end automatically generated code
+
+void setup(void) {
+
+  AudioMemory(4);
+  AudioMemory_F32(4);
+
+  sgtl5000_1.enable();
+  
+  sine1.frequency(300);
+  sine1.amplitude(0.5);
+  sine1.begin();
+
+  sine2.frequency(600);
+  sine2.amplitude(0.8);
+  sine2.begin();
+
+} 
+
+void loop() {}