nxtOSEK/lejos_nxj/samples/BTReceive/BTReceive.java

   1 import lejos.nxt.*;
   2 import lejos.nxt.comm.*;
   3 import java.io.*;
   4
   5 public class BTReceive {
   6
   7         public static void main(String [] args)  throws Exception
   8         {
   9                 String connected = "Connected";
  10         String waiting = "Waiting";
  11
  12                 while (true)
  13                 {
  14                         LCD.drawString(waiting,0,0);
  15                         LCD.refresh();
  16
  17                 BTConnection btc = Bluetooth.waitForConnection();
  18
  19                         LCD.clear();
  20                         LCD.drawString(connected,0,0);
  21                         LCD.refresh();
  22
  23                         InputStream is = btc.openInputStream();
  24                         OutputStream os = btc.openOutputStream();
  25                         DataInputStream dis = new DataInputStream(is);
  26                         DataOutputStream dos = new DataOutputStream(os);
  27
  28                         for(int i=0;i<100;i++) {
  29                                 int ii = dis.readInt();
  30                                 LCD.drawInt(ii,3,0,1);
  31                                 LCD.refresh();
  32                                 dos.writeInt(-ii);
  33                                 dos.flush();
  34                         }
  35
  36                         dis.close();
  37                         dos.close();
  38                         btc.close();
  39                         LCD.clear();
  40                 }
  41         }
  42 }
  43