Lesson3Week5.markdown

@@ -82,6 +82,33 @@ The goal is to implement a ButtonListener for the ESCAPE button, so you can exit
 We are planning to do this by looking at the leJos tutorial on how to use a ButtonListener.
 
 #### Results
+```
+import lejos.nxt.*;
+/**
+ * The locomotions of a  LEGO 9797 car is controlled by
+ * sound detected through a microphone on port 1. 
+ * 
+ * @author  Ole Caprani
+ * @version 23.08.07
+ */
+public class SoundCtrCar 
+{
+    private static int soundThreshold = 90;
+    private static SoundSensor sound = new SoundSensor(SensorPort.S1);
+	
+    private static  void waitForLoudSound() throws Exception
+    {
+        int soundLevel;
+        Button.ESCAPE.addButtonListener(new ButtonListener() {
+            public void buttonPressed(Button b) {
+              LCD.drawString("escape pressed", 0, 0);
+              System.exit(0);
+            }
+              public void buttonReleased(Button b) {
+                  LCD.clear();
+                }
+              });
+```
 
 #### Conclusion