Index: AD5941_interface09302025/ad5941_library_extension.cpp
===================================================================
diff -u -r6dc43c82214e34a1441f4f8b3210104d3d08d36b -r4ed225961d7e2ebf9a71c19b1a3bb5788c349c12
--- AD5941_interface09302025/ad5941_library_extension.cpp	(.../ad5941_library_extension.cpp)	(revision 6dc43c82214e34a1441f4f8b3210104d3d08d36b)
+++ AD5941_interface09302025/ad5941_library_extension.cpp	(.../ad5941_library_extension.cpp)	(revision 4ed225961d7e2ebf9a71c19b1a3bb5788c349c12)
@@ -2745,20 +2745,34 @@
 
 // ************************************ Diality **********************************************
 
-void detectSerial() {
-    for (int i = 0; i < 8; i++) {
+void detectSerial() 
+{
+      // First check Serial7 explicitly
+    beginSerial(&Serial7, 115200);
+    delay(50);
+    if (Serial7.available())
+     {
+        activeSerial = &Serial7;
+        // activeSerial->println("Using Serial7 (pins 28,29)");
+        return; // Done, since Serial7 is preferred
+    }
+
+    for (int i = 0; i < 8; i++)
+     {
         beginSerial(serialPorts[i], 115200);
         delay(50); // Give time for init
         // For USB Serial, wait for connection
-        if (serialPorts[i] == &Serial) {
+        if (serialPorts[i] == &Serial)
+         {
             unsigned long start = millis();
-            while (!Serial && millis() - start < 2000) {
+            while (!Serial && millis() - start < 2000)
+             {
                 // Wait up to 2s for USB
             }
         }
         // Assume first port is good (or add handshake logic)
         activeSerial = serialPorts[i];
-        activeSerial->println(String("Using ") + serialNames[i]);
+        // activeSerial->println(String("Using ") + serialNames[i]);
         break;
     }
 }