Android Question Bluetooth connection

Seems like you are trying to use AsyncStreamsText class without actually adding this class (and using it correctly). See this thread: [class] AsyncStreamsText - Useful when working with streams of text

I have found one problem: I used a baud rate of 115k which seems to be too much for the B4A side. I made the obviously wrong assumption that Bluetooth dos not care about the baudrate. I reduced it to 9600 bit/s and now I get an event, but alas, also a java runtime error that the astream_newtext sub was not recognized. I tried to change the call in the chat_activity from AStreams_NewText to all lowercase, however that was no cure. I now that Java is much more case-sensitive than Basic, but I am unable to find the fault. I am as always grateful for a hint,
Georg

How is AStream declared?

Declaration of AStream (or astream ...) is like this:
/Sub Process_Globals
Dim astream As AsyncStreamsText
End Sub/

Anyway, I have not found a bug but a workaround for the problem:
When I change the call in AsyncStreamText from

CallSubDelayed2(mTarget, mEventName & "_newtext", s.SubString2(start, i)) 'gives java run time error
to
CallSubDelayed2(mTarget, "astream_newtext", s.SubString2(start, i))

e.g. call the event with an explicit string as event name rather than let it concatenate by the call, then the event is raised properly. This is kind of weird and may be a bug in the interface between basic an java.
Anyway, I am most thankful for your advice.
Georg

I'm sure that this is not the cause of this error.
Can you upload your project (File - Export as zip)?

Here we go. The code is by no means finished, it should finally be an artificial horizon feed with data from an arduino with a 10DOF chip. The code is close to the example, I just changed all references to AStreams anywhere to lower case, but as mentioned before, this did not help. Have a look at the mod I made to AsyncStreamText. It works like this. To reproduce the problem, uncomment the two subdelayed calls and transmit anything into the app via bluetooth.
Thanks for your support, Georg

Change:
To:
Or better:
The underscore is added automatically.

indeed, thanks a lot, Erel!