diff --git a/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/MicaZMote.java b/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/MicaZMote.java
index 949faa741..1d6659bef 100755
--- a/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/MicaZMote.java
+++ b/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/MicaZMote.java
@@ -26,7 +26,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $Id: MicaZMote.java,v 1.5 2009/03/19 14:47:36 joxe Exp $
+ * $Id: MicaZMote.java,v 1.6 2009/03/19 18:58:19 joxe Exp $
  */
 
 package se.sics.cooja.avrmote;
@@ -43,6 +43,7 @@ import se.sics.cooja.MoteMemory;
 import se.sics.cooja.MoteType;
 import se.sics.cooja.Simulation;
 import se.sics.cooja.avrmote.interfaces.MicaClock;
+import se.sics.cooja.avrmote.interfaces.MicaSerial;
 import se.sics.cooja.avrmote.interfaces.MicaZLED;
 import se.sics.cooja.avrmote.interfaces.MicaZRadio;
 import se.sics.cooja.interfaces.Position;
@@ -273,8 +274,10 @@ public class MicaZMote implements Mote {
       moteInterfaceHandler.addInterface(new MicaZLED(micaZ));
       // Add Radio interface
       moteInterfaceHandler.addInterface(new MicaZRadio(this));
-      // Add Radio interface
+      // Add Clock interface
       moteInterfaceHandler.addInterface(new MicaClock(this));
+      // Add Serial interface
+      moteInterfaceHandler.addInterface(new MicaSerial(this));
 
 
       return moteInterfaceHandler;
diff --git a/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaSerial.java b/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaSerial.java
new file mode 100644
index 000000000..f15afdf60
--- /dev/null
+++ b/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaSerial.java
@@ -0,0 +1,47 @@
+package se.sics.cooja.avrmote.interfaces;
+
+import avrora.sim.mcu.AtmelMicrocontroller;
+import avrora.sim.platform.MicaZ;
+import se.sics.cooja.Mote;
+import se.sics.cooja.avrmote.MicaZMote;
+import se.sics.cooja.dialogs.SerialUI;
+
+public class MicaSerial extends SerialUI {
+
+  Mote mote;
+  
+  public MicaSerial(MicaZMote micaZMote) {
+    mote = micaZMote;
+    MicaZ micaZ = micaZMote.getMicaZ();
+    /* this should go into some other piece of code for serial data */
+    AtmelMicrocontroller mcu = (AtmelMicrocontroller) micaZ.getMicrocontroller();
+    avrora.sim.mcu.USART usart = (avrora.sim.mcu.USART) mcu.getDevice("usart0");
+    if (usart != null) {
+      usart.connect(  new avrora.sim.mcu.USART.USARTDevice() {
+        public avrora.sim.mcu.USART.Frame transmitFrame() {
+          return null;
+          // return new avrora.sim.mcu.USART.Frame((byte)'a', false, 8);
+        }
+        public void receiveFrame(avrora.sim.mcu.USART.Frame frame) {
+          dataReceived(frame.value);
+        }
+      });
+    } else {
+     System.out.println("*** Warning MicaZ: could not find usart1 interface..."); 
+    }
+  }
+  
+  public Mote getMote() {
+    return mote;
+  }
+  
+  /* not yet implemented ...*/
+  public void writeArray(byte[] s) {
+  }
+
+  public void writeByte(byte b) {
+  }
+
+  public void writeString(String s) {
+  }
+}
diff --git a/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaZLED.java b/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaZLED.java
index 586ba9117..78dd1d03c 100755
--- a/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaZLED.java
+++ b/tools/cooja/apps/avrora/src/se/sics/cooja/avrmote/interfaces/MicaZLED.java
@@ -26,7 +26,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $Id: MicaZLED.java,v 1.2 2009/03/19 14:47:37 joxe Exp $
+ * $Id: MicaZLED.java,v 1.3 2009/03/19 18:58:19 joxe Exp $
  */
 
 package se.sics.cooja.avrmote.interfaces;
@@ -65,26 +65,6 @@ public class MicaZLED extends LED {
     avrora.sim.platform.LED.LEDGroup leds =
       (avrora.sim.platform.LED.LEDGroup) micaZ.getDevice("leds");
 
-    /* this should go into some other piece of code for serial data */
-    AtmelMicrocontroller mcu = (AtmelMicrocontroller) micaZ.getMicrocontroller();
-    avrora.sim.mcu.USART usart = (avrora.sim.mcu.USART) mcu.getDevice("usart0");
-    if (usart != null) {
-      System.out.println("MicaZ: connecting to USART1");
-      usart.connect(  new avrora.sim.mcu.USART.USARTDevice() {
-        char[] stream = {'h', 'e', 'l', 'l', 'o', 'w', 'o', 'r', 'l', 'd'};
-        int count;
-        public avrora.sim.mcu.USART.Frame transmitFrame() {
-          System.out.println("MicaZ: transmitting to micaz...");
-          return new avrora.sim.mcu.USART.Frame((byte)stream[count++ % stream.length], false, 8);
-        }
-        public void receiveFrame(avrora.sim.mcu.USART.Frame frame) {
-          System.out.println("MicaZ: usart output: " + frame.toString());
-        }
-      });
-    } else {
-     System.out.println("MicaZ: could not find usart1 interface..."); 
-    }
-    
     leds.leds[0].getFSM().insertProbe(new FiniteStateMachine.Probe() {
       public void fireAfterTransition(int old, int newstate) {
         redOn = newstate > 0;