nxtOSEK/lejos_nxj/samples/Listen/Listen.java

   1 import lejos.nxt.*;
   2
   3 public class Listen implements SensorPortListener
   4 {
   5         String changed = "State changed";
   6         String val = "Value:";
   7         String oldVal = "old Value:";
   8         String free = "Free Mem:";
   9         SoundSensor sound = new SoundSensor(SensorPort.S1);
  10
  11         public static void main (String[] aArg)
  12         throws Exception
  13         {
  14                 Listen listen = new Listen();
  15                 listen.run();
  16                 Button.ESCAPE.waitForPressAndRelease();
  17                 LCD.clear();
  18                 LCD.drawString("Finished", 3, 4);
  19                 LCD.refresh();
  20         }
  21
  22         public void stateChanged(SensorPort port, int value, int oldValue)
  23     {
  24                 if (port == SensorPort.S1 && sound.readValue() > 50)
  25                 {
  26                 LCD.clear();
  27                 LCD.drawString(changed,0,0);
  28                 LCD.drawString(val, 0, 1);
  29                 LCD.drawInt(value,7,1);
  30                 LCD.drawInt(sound.readValue(), 12, 1);
  31                 LCD.drawString(oldVal, 0, 2);
  32                 LCD.drawInt(oldValue, 11, 2);
  33                         LCD.drawString(free, 0, 4);
  34                     LCD.drawInt((int)(Runtime.getRuntime().freeMemory()),10,4);
  35                 LCD.refresh();
  36                 }
  37     }
  38
  39         private void run()
  40         throws InterruptedException
  41         {
  42                 SensorPort.S1.addSensorPortListener(this);
  43         }
  44 }