Add warnings for pin conflicts in AudioKit

Author: pschatzmann

README.md

@@ -81,7 +81,7 @@ void loop(){
 
 ```
 Each stream has it's own configuration object that should be passed to the begin method. The defaultConfig() method is providing a default proposal which will usually "just work". Please consult 
-the class documentation for the available configuration parameters.
+the class documentation for the available configuration parameters. You can also easily adapt any provided examples: If you e.g. replace the I2SStream with the AnalogAudioStream class, you will get analog instead of digital output.
 
 Further examples can be found in the [Wiki](https://github.com/pschatzmann/arduino-audio-tools/wiki/Examples). The library also provides a versatile [AudioPlayer](https://github.com/pschatzmann/arduino-audio-tools/wiki/The-Audio-Player-Class).
 

src/AudioLibs/AudioKit.h

@@ -536,16 +536,26 @@ class AudioKitStream : public AudioStreamX {
   /// Setup the supported default actions
   void setupActions() {
     LOGI(LOG_METHOD);
-    actions.add(kit.pinHeadphoneDetect(), actionHeadphoneDetection);
-    // This clashes with the SD CS pin for AIThinker
-    if (!cfg.sd_active && (AUDIOKIT_BOARD!=5 && AUDIOKIT_BOARD!=6)){
+    // pin conflicts with AIThinker A101 and headphone detection
+    if (! (cfg.sd_active && AUDIOKIT_BOARD==6)) {
+      actions.add(kit.pinHeadphoneDetect(), actionHeadphoneDetection);
+    } else {
+      LOGW("Headphone detection ignored because of conflict: %d ",kit.pinHeadphoneDetect());
+    }
+
+    // pin conflicts with the SD CS pin for AIThinker and buttons
+    if (! (cfg.sd_active && (AUDIOKIT_BOARD==5 || AUDIOKIT_BOARD==6))){
       addAction(kit.pinInputMode(), actionStartStop);
+    } else {
+      LOGW("Mode Button ignored because of conflict: %d ",kit.pinInputMode());
     }
 
-    // conflicts with SD Lyrat SD CS Pin
-    if (!cfg.sd_active && (AUDIOKIT_BOARD==5 || AUDIOKIT_BOARD==6)){
+    // pin conflicts with SD Lyrat SD CS Pin and buttons
+    if (! (cfg.sd_active && AUDIOKIT_BOARD==1)){
       addAction(kit.pinVolumeDown(), actionVolumeDown); 
       addAction(kit.pinVolumeUp(), actionVolumeUp);
+    } else {
+      LOGW("Volume Buttons ignored because of conflict: %d ",kit.pinVolumeDown());
     }
   }
 };