java - Arduino not sending integers properly -


i trying send integers 0 through 10 arduino uno android device. however, arduino not sending integers separately, rather sending cluster (sometimes 2 @ time). want able send integer every 5 milliseconds , not delay longer that. ideas?

arduino code:

#include <softwareserial.h>  const int rx_pin = 8; const int tx_pin = 9; softwareserial bluetooth(rx_pin, tx_pin);  char commandchar;  void setup (){     bluetooth.begin (9600);     serial.begin(9600); }  void loop () {     if(bluetooth.available()){         commandchar = bluetooth.read();         switch(commandchar){             case '*':             for(int = 0; < 11; i++){                 bluetooth.print(i);                 delay(5);             }         break;        }     }     }

android code:

public void run() {     initializeconnection();     byte[] buffer = new byte[256]; // buffer store stream     int bytes; // bytes returned read()     while (true) {         try {             if(mmsocket!=null) {                 bytes = mminstream.read(buffer);                 string readmessage = new string(buffer, 0, bytes);                 log.e("received message ", readmessage);                 }             }         } catch (ioexception e) {             log.e("error ", "reading btinputstream");             break;         }     } }

android monitor/console output:

08-18 19:46:32.319 6720-6749/? e/received message: 0 08-18 19:46:32.324 6720-6749/? e/received message: 1 08-18 19:46:32.324 6720-6749/? e/received message: 23 08-18 19:46:32.324 6720-6749/? e/received message: 4 08-18 19:46:32.379 6720-6749/? e/received message: 56 08-18 19:46:32.379 6720-6749/? e/received message: 78 08-18 19:46:32.379 6720-6749/? e/received message: 91 08-18 19:46:32.384 6720-6749/? e/received message: 0

it seems serial communication working stream (not datagram) , isn't keeping data boundary.

therefore, seems should add data separator (for example: newline) sending data , process in receiver (for example: use bufferedreader) keep data boundary.


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