indication for array position while learning

headmic.py

@@ -714,14 +714,50 @@ if __name__ == "__main__":
 
     if "--learn" in sys.argv:
         logging.basicConfig(level=logging.INFO)
-        info = learn_devices()
-        if not info.get("left") or not info.get("right"):
+
+        mgr = XVF3800Manager()
+        mgr.assign()  # discovers and assigns by bus address order
+
+        if not mgr.left or not mgr.right:
             print("[HEADMIC] Need 2 XVF3800 arrays connected for --learn")
             sys.exit(1)
+
+        # Light up the first array and ask the user
+        print()
+        print("[HEADMIC] Identifying mic arrays...")
+        print("          One array should be lighting up GREEN now.")
+        mgr.left.led_solid(0x00FF00)
+        mgr.right.led_off()
+
+        answer = input("          Is the LEFT mic array lit up? [Y/n/swap] ").strip().lower()
+
+        mgr.left.led_off()
+
+        if answer in ("n", "no", "swap"):
+            print("[HEADMIC] Swapping left/right assignment")
+            mgr.left, mgr.right = mgr.right, mgr.left
+
+        # Confirm: light up both with their side color
+        print("[HEADMIC] Confirming: LEFT = green, RIGHT = blue")
+        mgr.left.led_solid(0x00FF00)
+        mgr.right.led_solid(0x0000FF)
+        time.sleep(2)
+        mgr.left.led_off()
+        mgr.right.led_off()
+
+        # Save config
+        info = {}
+        for label, dev in [("left", mgr.left), ("right", mgr.right)]:
+            entry = {"usb_serial": dev.serial}
+            alsa = mgr.serial_to_alsa(dev.serial)
+            if alsa:
+                entry["alsa_card"] = alsa
+            info[label] = entry
+
         cfg = load_config()
         cfg["ears"] = info
         save_config(cfg)
-        print(f"[HEADMIC] Learned ear config → {CONFIG_PATH}")
+        print(f"[HEADMIC] Saved ear config → {CONFIG_PATH}")
         print(json.dumps(info, indent=2))
         sys.exit(0)