diff --git a/app/src/main/java/com/example/sensortestingapp/MainActivity.kt b/app/src/main/java/com/example/sensortestingapp/MainActivity.kt
index cedb0b0..703618f 100644
--- a/app/src/main/java/com/example/sensortestingapp/MainActivity.kt
+++ b/app/src/main/java/com/example/sensortestingapp/MainActivity.kt
@@ -16,6 +16,8 @@ import android.os.Bundle
 import android.util.Log
 import android.view.Menu
 import android.view.MenuItem
+import android.view.View.INVISIBLE
+import android.view.View.VISIBLE
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
@@ -124,6 +126,7 @@ class MainActivity : AppCompatActivity() {
                     binding.fab.setIconResource(
                         if (isScanning) R.drawable.action_icon_disconnect else R.drawable.action_icon_scan
                     )
+                    binding.scanProgress.visibility = if (isScanning) VISIBLE else INVISIBLE
                 }
             }
 
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index f768434..c125121 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -31,15 +31,36 @@
         android:padding="10dp"
         tools:listitem="@layout/row_device_list" />
 
-    <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
-        android:id="@+id/fab"
-        android:layout_width="150dp"
-        android:layout_height="wrap_content"
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/fab_container"
+        android:layout_width="wrap_content"
+        android:layout_height="100dp"
         android:layout_gravity="bottom|end"
-        android:layout_marginEnd="@dimen/fab_margin"
-        android:layout_marginBottom="16dp"
-        android:text='Start Scan'
-        app:icon="@drawable/action_icon_scan"
-        app:srcCompat="@android:drawable/stat_sys_data_bluetooth" />
+        android:clipToPadding="false"
+        android:padding="20dp">
+
+        <com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
+            android:id="@+id/fab"
+            android:layout_width="150dp"
+            android:layout_height="match_parent"
+            android:text='Start Scan'
+            app:icon="@drawable/action_icon_scan"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <ProgressBar
+            android:id="@+id/scan_progress"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:layout_marginStart="3dp"
+            android:translationZ="100dp"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            android:indeterminateTintMode="src_atop"
+            android:indeterminateTint="?attr/colorPrimary"
+            android:visibility="invisible" />
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
 
 </androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file