nxtOSEK/lejos_nxj/samples/SignalTest/SignalTest.java

   1 import java.io.DataInputStream;\r
   2 import java.io.DataOutputStream;\r
   3 import java.io.InputStream;\r
   4 import java.io.OutputStream;\r
   5 \r
   6 import lejos.nxt.*;\r
   7 import lejos.nxt.comm.*;\r
   8 \r
   9 /**\r
  10  * Open a connection to the NXT using the BTSend sample\r
  11  * and then walk round the house measuring the signal\r
  12  * strength.\r
  13  * \r
  14  * @author Lawrie Griffiths\r
  15  *\r
  16  */\r
  17 public class SignalTest {\r
  18 \r
  19         public static void main(String [] args)  throws Exception \r
  20         {\r
  21                 String connected = "Connected";\r
  22         String waiting = "Waiting";\r
  23         String strength = "Signal: ";\r
  24 \r
  25                 LCD.drawString(waiting,0,0);\r
  26                 LCD.refresh();\r
  27 \r
  28         BTConnection btc = Bluetooth.waitForConnection();\r
  29         \r
  30                 LCD.clear();\r
  31                 LCD.drawString(connected,0,0);\r
  32                 LCD.refresh();  \r
  33                 \r
  34                 while(!Button.ESCAPE.isPressed()) {\r
  35                         LCD.drawString(strength, 0, 3);\r
  36                         LCD.drawInt(btc.getSignalStrength(), 3, 9 ,3);\r
  37                         LCD.refresh();\r
  38                         Thread.sleep(1000);\r
  39                 }\r
  40                 \r
  41                 btc.close();\r
  42         }\r
  43 }\r