Getting different data from SD and over Bluetooth

[gdpwork]

Hi, I'm working with an Android project which reads over Bluetooth what the Freematics OBD II adapter v2 is sending. What's weird is that I can see the logged data into the SD different from what I can see when I read it in Android.

What I can see in SD card is something like:

$GPRMC,131200.569,V,,,,,0.00,0.00,080914,,,N*42

11791,F020,-1632,420,16956
125,10C,9687
$GPRMC,131201.669,V,,,,,0.00,0.00,080914,,,N*40

23,F020,-1696,376,16932
150,10D,247
$GPGGA,131201.869,,,,,0,0,,,M,,M,,*4F

And when I read the stream in Android I get something like this:

F020,-1744,400,16396
104,71
$GPRMC,144735.301,V,,,,,0.00,241.26,080914,,,N*48

F020,-1660,376,16336
111,81
F020,-1620,376,16312
10E,-21
$GPRMC,144735.601,V,,,,,0.00,241.26,080914,,,N*4D

To read the stream in Android I'm using something like:

Code: Select all

  protected void readRawData(InputStream in) throws IOException {
      byte b = 0;
      StringBuilder res = new StringBuilder();

      while ((char) (b = (byte) in.read()) != '\n') {
          res.append((char) b);
      }
  }

So, over Bluetooth I'm not seeing the time since the previous read and many times I move the knob in the OBD emulator (v1) and the value I get over Bluetooth doesn't change (it changes in the logged values in the SD card)

Why is the difference? How can I make them the same?

[stanley]

The streaming data does not include the timestamp which is the first number in every line of data in logged file.