diff --git a/demokit/app/res/layout/main.xml b/demokit/app/res/layout/main.xml
index 6f093cf..8fdf685 100644
--- a/demokit/app/res/layout/main.xml
+++ b/demokit/app/res/layout/main.xml
@@ -78,6 +78,12 @@
                 <TextView android:layout_width="wrap_content" android:id="@+id/textView12" android:layout_height="wrap_content" android:text="@string/y" android:layout_marginRight="8dip"></TextView>
                 <TextView android:layout_width="wrap_content" android:id="@+id/joyY" android:layout_height="wrap_content"></TextView>
             </LinearLayout>
+            <LinearLayout android:id="@+id/linearLayout5" android:layout_width="wrap_content" android:layout_height="wrap_content">
+	      <TextView android:layout_width="wrap_content" android:id="@+id/textViewJoyButton" android:layout_height="wrap_content" android:text="@string/button" android:layout_marginRight="8dip"></TextView>
+	      <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/droid_off" android:id="@+id/joyButtonImage"></ImageView>
+            </LinearLayout>
+
+
         </TableRow>
         <TableRow android:layout_width="match_parent" android:id="@+id/tableRow9" android:layout_height="wrap_content">
             <TextView android:id="@+id/textView11" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:text="@string/cap"></TextView>
diff --git a/demokit/app/res/values/strings.xml b/demokit/app/res/values/strings.xml
index 54be6eb..3080b76 100644
--- a/demokit/app/res/values/strings.xml
+++ b/demokit/app/res/values/strings.xml
@@ -2,6 +2,7 @@
 <resources>
     <string name="hello">Hello World, DemoKitActivity!</string>
     <string name="app_name">DemoKit</string>
+    <string name="button">button</string>
     <string name="button1">1</string>
     <string name="button2">2</string>
     <string name="button3">3</string>
diff --git a/demokit/app/src/com/google/DemoKit/DemoKitActivity.java b/demokit/app/src/com/google/DemoKit/DemoKitActivity.java
index bb1ec3a..a43fea2 100644
--- a/demokit/app/src/com/google/DemoKit/DemoKitActivity.java
+++ b/demokit/app/src/com/google/DemoKit/DemoKitActivity.java
@@ -85,6 +85,8 @@
 
     TextView mJoyX;
     TextView mJoyY;
+    ImageView mJoyButtonImage;
+
 
     ImageView mCap;
 
@@ -239,6 +241,7 @@
 
         mJoyX = (TextView)findViewById(R.id.joyX);
         mJoyY = (TextView)findViewById(R.id.joyY);
+        mJoyButtonImage = (ImageView)findViewById(R.id.joyButtonImage);
 
         mCap = (ImageView)findViewById(R.id.cap);
 
@@ -320,6 +323,7 @@
         mButton1Image.setImageDrawable(mSwitchOff);
         mButton2Image.setImageDrawable(mSwitchOff);
         mButton3Image.setImageDrawable(mSwitchOff);
+        mJoyButtonImage.setImageDrawable(mSwitchOff);
         mCap.setImageDrawable(mSwitchOff);
         mLed1Red.setProgress(0);
         mLed1Green.setProgress(0);
@@ -454,6 +458,8 @@
                         mButton3Image.setImageDrawable(o.getState() != 0 ? mSwitchOn : mSwitchOff);
                     else if (o.getSw() == 3)
                         mCap.setImageDrawable(o.getState() != 0 ? mSwitchOn : mSwitchOff);
+                    else if (o.getSw() == 4)
+                        mJoyButtonImage.setImageDrawable(o.getState() != 0 ? mSwitchOn : mSwitchOff);
                     break;
 
                 case MESSAGE_TEMPERATURE: