diff --git a/examples/examples-custom-boards/lyrat-mini/mic/mic.ino b/examples/examples-custom-boards/lyrat-mini/mic/mic.ino
index d12b787af..8819d56c7 100644
--- a/examples/examples-custom-boards/lyrat-mini/mic/mic.ino
+++ b/examples/examples-custom-boards/lyrat-mini/mic/mic.ino
@@ -15,7 +15,7 @@ void setup(void) {
     
     auto cfg = i2s.defaultConfig(RX_MODE);
     cfg.copyFrom(info);
-    //cfg.input_device = ADC_INPUT_LINE2;
+    // cfg.i2s_function = CODEC; // or CODEC_ADC
     i2s.begin(cfg);
 
     // make sure that we have the correct number of channels set up
diff --git a/examples/examples-custom-boards/lyrat-mini/sd/sd.ino b/examples/examples-custom-boards/lyrat-mini/sd/sd.ino
index 09710b684..1494ab393 100644
--- a/examples/examples-custom-boards/lyrat-mini/sd/sd.ino
+++ b/examples/examples-custom-boards/lyrat-mini/sd/sd.ino
@@ -9,16 +9,24 @@
 #define PIN_SD_CARD_MISO 2
 #define PIN_SD_CARD_MOSI 15
 #define PIN_SD_CARD_CLK  14
+#define PIN_SD_CARD_DET 34
+
 
 // Arduino Setup
 void setup(void) {
   Serial.begin(115200);
   
   // setup SPI
-  SPI.begin(PIN_SD_CARD_CLK, PIN_SD_CARD_MISO, PIN_SD_CARD_MOSI, PIN_SD_CARD_CLK);
+  SPI.begin(PIN_SD_CARD_CLK, PIN_SD_CARD_MISO, PIN_SD_CARD_MOSI, PIN_SD_CARD_CS);
+
+  // Determin if there is an SD card
+  pinMode(PIN_SD_CARD_DET, INPUT);
+  if (digitalRead(PIN_SD_CARD_DET)!=0){
+    Serial.println("No SD Card detected");
+  }
 
   // Setup SD and open file
-  if (!SD.begin(PIN_SD_CARD_CLK, SPI)){
+  if (!SD.begin(PIN_SD_CARD_CS)){
     Serial.println("SD.begin failed");
     while(true);
   }
@@ -33,5 +41,4 @@ void setup(void) {
 }
 
 // Arduino loop - repeated processing 
-void loop() {
-}
\ No newline at end of file
+void loop() {}
\ No newline at end of file
diff --git a/src/AudioTools/AudioLibs/I2SCodecStream.h b/src/AudioTools/AudioLibs/I2SCodecStream.h
index c900d7489..dd0600e8d 100644
--- a/src/AudioTools/AudioLibs/I2SCodecStream.h
+++ b/src/AudioTools/AudioLibs/I2SCodecStream.h
@@ -26,7 +26,7 @@ struct I2SCodecConfig : public I2SConfig {
   output_device_t output_device = DAC_OUTPUT_ALL;
   // to be compatible with the AudioKitStream -> do not activate SD spi if false
   bool sd_active = true;
-
+  PinFunction i2s_function = PinFunction::CODEC; 
   bool operator==(I2SCodecConfig alt) {
     return input_device == alt.input_device &&
            output_device == alt.output_device && *((AudioInfo *)this) == alt;
@@ -253,23 +253,8 @@ class I2SCodecStream : public AudioStream, public VolumeSupport {
   audio_driver_local::Optional<PinsI2S> getI2SPins(){
     TRACED();
      audio_driver_local::Optional<PinsI2S> i2s;
-    // special logic if we have a board which has a dedicated microphone I2S port
-    if (cfg.rx_tx_mode == RX_MODE){
-      i2s = p_board->getPins().getI2SPins(PinFunction::CODEC_ADC);
-#ifdef ESP32
-      if (i2s){
-        cfg.port_no = i2s.value().port;
-        LOGI("Using port %d for input", cfg.port_no);
-      }
-#endif
-    }
-    
-    // Deterine regular I2S pins 
-    if (!i2s){
-      // setup pins in i2s config
-      i2s = p_board->getPins().getI2SPins();
-    }
-    return i2s;   
+    // Deterine I2S pins 
+    return  p_board->getPins().getI2SPins(cfg.i2s_function);
   }
 
   bool beginCodec(I2SCodecConfig info) {