got PAM amp working on analog pin

baby_mobile_v2/baby_mobile_v2.ino

@@ -70,8 +70,8 @@ using namespace Adafruit_LittleFS_Namespace;
 // Map these to your actual PCB connections.
 
 // Audio
-#define PIN_AUDIO_PWM    8    // Any PWM-capable pin
-#define PIN_AMP_SD       14   // PAM8302A shutdown (HIGH=enabled)
+#define PIN_AUDIO_PWM    0    // Any PWM-capable pin
+#define PIN_AMP_SD       6   // PAM8302A shutdown (HIGH=enabled)
 
 // Motor
 #define PIN_MOTOR_PWM    15   // PWM to MOSFET gate
@@ -81,7 +81,7 @@ using namespace Adafruit_LittleFS_Namespace;
 // SPI MOSI/MISO/SCK use default SPI pins
 
 // Buttons (directly to GPIO, active LOW with internal pull-up)
-#define PIN_BTN1         0
+#define PIN_BTN1         4
 #define PIN_BTN2         1
 #define PIN_BTN3         5
 #define PIN_BTN4         3
@@ -690,7 +690,7 @@ void setupBLE() {
 uint32_t g_nextSampleUs = 0;
 
 // Software gain: 1=unity, 2=2x, etc. (clips at 0/255). Adjustable via 'u'/'d' serial.
-static uint8_t g_audioGain = 3;
+static uint8_t g_audioGain = 1;
 
 // Called from loop() every 125µs while g_playing
 void audioTick(void) {
@@ -925,12 +925,15 @@ void setup() {
     
     int c=0;
     while(c<10) {
-      delay(250);
-      digitalWrite(PIN_LED, LOW);
-      // Serial.println("0");
+      // pinMode(c, OUTPUT);
       delay(250);
       digitalWrite(PIN_LED, HIGH);
-      // Serial.println("1");
+      // digitalWrite(c, HIGH);
+      // Serial.println("0");
+      delay(250);
+      digitalWrite(PIN_LED, LOW);
+      // digitalWrite(c, LOW);
+      // Serial.println(c);
       c++;
     }
 
@@ -981,8 +984,8 @@ void setup() {
 #ifdef POC_INTERNAL_FLASH
     // Boot test tone: 440Hz square wave for 1 second
     // If you hear a beep, the amp/PWM chain is working.
-    Serial.println("Boot tone...");
-    digitalWrite(PIN_AMP_SD, HIGH);
+    Serial.println("Boot tone disabled...");
+    // digitalWrite(PIN_AMP_SD, HIGH);
     delay(20);
     for (int i = 0; i < 8000; i++) {
         // 440Hz at 8kHz sample rate: 8000/440 ≈ 18 samples/cycle
@@ -1263,7 +1266,7 @@ void loop() {
         btnLastMs[btn] = millis();
         Serial.print("BTN"); Serial.println(btn);
         g_lastActivity = millis();
-
+/*
         switch (btn) {
             case 1:  // Play / Pause
             case 2:
@@ -1312,7 +1315,7 @@ void loop() {
                 audioStop();
                 motorStop();
                 break;
-        }
+        }*/
 
         waitButtonRelease(btn);
     }