B4J Question [Solved] Bluetooth connection lost event?

[Mark Read]

When using a RPi connected to another device via bluetooth, is there a way to detect the loss of bluetooth connection from the RPi side? Maybe ChangeOfState or similar?

Many thanks.

 

[Erel]

You need to handle AStream_Error and AStream_Terminated events.

 

[Mark Read]

Okay. I can imagine that the Astream_Error would be called if data cannot be sent to the client but when is Astream_Terminated called?

 

[Erel]

Terminated is called when the connection is closed by the other side. Practically you should handle both cases in the same way.

 

[Mark Read]

So to sum up:

RPi sends data continuously to a tablet. Tablet listens for data.

RPi cannot send data over bluetooth - AStreams_Error will be called on RPi.
Tablet closes bluetooth - AStreams_Terminated is called on RPi.
Correct?

What error deos the tablet generate?

Thanks Erel.

 

[Erel]

Yes (errors can happen even if nothing is written).

What error deos the tablet generate?

Exactly the same.

 

[Mark Read]

Thanks for the clear explanation Erel. Have added the two subs on my tablet and RPi. Now I can reconnect if the bluetooth connection is lost, without restarting both Apps!