Android Question Bluetooth mnuDisconnect

[saunwin]

Good evening,

I'm having bluetooth problems (story of my life at present).
If I fire up my app from boot up, I can connect to my HC-06.
If I then exit my app and re-start it I cannot connect to the HC-06
I have a mnuDisconnect and a mnuExit. Is there something these routines should do, to correctly disconnect the bluetooth module, so I can reconnect again ?
TIA

Sub mnuEXIT_Click
    Activity.Finish
End Sub

 

[Erel]

Calling Activity.Finish is not the correct way to close a Bluetooth connection.

There shouldn't be any relation between the activity and the Bluetooth connection. You should move all the Bluetooth related code to the starter service. See this example: https://www.b4x.com/android/forum/threads/hc-05-classic-bluetooth.66677/#content

 

[saunwin]

Thanks Erel,
Compiling the code above, does a similar thing.
The device is found - Log($"Device found: ${Name}"$)
The tablet status reports "trying to connect..." and that's it, it never connects.

I unpaired the HC-06 and re-paired, Power off/on (both devices), 3v3 is stable to the HC-06 (decoupling capacitor, etc.) but I cannot get any further.
Ideas ?

Erel - You are of course correct. My code is stuffing up BT comms somehow, preventing other apps from working also.

 

[saunwin]

Erel (or any other Guru - That all looks so complicated just to send a single byte now and again. I'm having a look here
https://www.b4x.com/android/forum/threads/android-bluetooth-bluetoothadmin-tutorial.14768/
Would I be correct in saying this is the the "now" way to connect and the main activity would become my starter activity ?
TIA

 

[saunwin]

OK - If I download some of the examples in the forum - I can get them to work. I've rewitten the bluetooth discovery stuff (as per the tutorial above) - After I've run my app, bluetooth is completely knackered. nothing will work (even forum examples) I get java.io.IOException: read failed, socket might closed or timeout, read ret: -1. Which means my app is breaking something, which brings me back to my original question. when leaving my app is there something that should happen to "release" or reset the hc-06 ? TIA


Is there a clue here ?


SLR games BuzzWire 3:983:32:20:92:4E
connected: true
** Activity (main) Pause, UserClosed = false **
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = true **
sending message to waiting queue (astreams_error)
** Activity (main) Create, isFirst = false **
running waiting messages (1)
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
** Activity (main) Resume **
SLR games BuzzWire 3:983:32:20:92:4E
connected: false
java.io.IOException: read failed, socket might closed or timeout, read ret: -1

 

[Erel]

See my answer in the other thread you started (please don't make duplicate posts!).