Android Question BluetoothAdmin - Connection closed after each sent message

[ernschd]

Hello,

I can more or less successfully communicate with the Python service on my Raspberry from this example:
https://github.com/levifuksz/raspibt

Unfortunately I get after every send the message "Astream_Error java.io.IOException: bt socket closed, read return: -1", but the server is sending the correct answer before.

No error is shown on the server side. After a reconnect everything works as before.

I catch the error like this:

Private Sub AStream_Error
   Log("Astream_Error " & LastException.Message)
   ...

The connection setup works with serial.Connect as well as with the UID (serial.Connect2(...))

What is the problem here?

Thanks and greetings

 

[Erel]

Why not use B4J to program the RPi?

Make sure not to use AsyncStreams in prefix mode.

 

[ernschd]

AsyncStreams is not in prefix mode.

I'm using python because I'm familiar with it (more or less). With B4J I would first have to learn how to run a program as a service.

 

[techknight]

With B4J I would first have to learn how to run a program as a service.

Which is super easy, I do it all the time.

This isnt the exact method I used as its a bit newer, but it would still work fine:

https://gist.github.com/GuySawyer/fae11b0efefd20927ef029c6b3c6fd4e

The "wrapper" script I used was here:
https://stackoverflow.com/questions/11203483/run-a-java-application-as-a-service-on-linux

And it worked fine.