BT on Windows Desktop

Stefanoxjx · wrote on 28 Jul 2020, 13:42

Hi, I would like to develop an utility for Desktop that work via bluetooth.
In particular I would need to communicate via SPP service (characteristic 00002902-0000-1000-8000-00805f9b34fb).
I tried some example on Windows, but seem that the bluetooth is not correctly recognized.
My question is.... the bluetooth managment in Qt, working on Desktop too?
Can you suggest me an working example or clarly guide?
Thanks.

Regards.

sierdzio · 28 Jul 2020, 19:31

It works on Windows 10 (and it has to be reasonably up-to-date).

Stefanoxjx · wrote on 28 Jul 2020, 19:31

@sierdzio Thanks for help.
I've seen that it works only with msvc compiler.
Now I trying to understand how to configure this kit.

sierdzio · 31 Jul 2020, 08:53

You need MSVC (Visual Studio) installed.

Stefanoxjx · wrote on 31 Jul 2020, 08:53

If I wanted to develop for android, is this class mature enough?
Exist an updated guide to configure QtCreator for Android?
I tried various guide, but all old.
Thanks.

Stefano

sierdzio · wrote on 31 Jul 2020, 08:59

Yes Qt and Bluetooth (also BLE) work on Android. Various phones have their quirks, but most of the time it works.

Guide: there were recently some changes in Qt Creator so I'm not sure what't the best/ suggested approach.

But in general, do this:

use Qt 5.15 (or 5.14 as a minimum)
install newest Android Studio
in Android SDK settings, download newest Android NDK
open Qt creator and point it to where your Android SDK and NDK are located
also point it to your Java installation
it should work :-)

Stefanoxjx · wrote on 31 Jul 2020, 11:59

Hi, now I'm in this situation:

What am I missing to be able to compile for android?
Thanks.

sierdzio · wrote on 31 Jul 2020, 18:11

That looks weird. It says that config is OK, but does not provide SDK version nor NDK version. Make sure your SDK location and NDK location are correct.

Stefanoxjx · wrote on 13 Aug 2020, 06:45

I'm sorry if I didn't answered you.
It is that I have not yet found the time to deepen this theme.

Stefanoxjx · wrote on 13 Aug 2020, 12:47

Now I'm in this situation:

What can I do?

sierdzio · wrote on 13 Aug 2020, 13:07

Is the SDK manager tab active (bottom of the screen)? You can probably use it to download missing packages.

Stefanoxjx · 13 Aug 2020, 14:08

Yesssss, almost there.
Now I've this screen:

Developer mode and debug USB in smartphone are active.
What missing?

J.Hilk · wrote on 13 Aug 2020, 14:08

@Stefanoxjx are the drivers installed? do you see it in windows explorer as a drive?

And what device is it, there are where debugging is not possible!

Stefanoxjx · wrote on 13 Aug 2020, 14:17

I'm using linux.
If I select "Charge only", in system message I see:

[27344.312950] usb 1-6.3: new high-speed USB device number 14 using xhci_hcd
[27344.413664] usb 1-6.3: New USB device found, idVendor=12d1, idProduct=107e, bcdDevice= 2.99
[27344.413669] usb 1-6.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[27344.413671] usb 1-6.3: Product: WAS-LX1A
[27344.413674] usb 1-6.3: Manufacturer: HUAWEI
[27344.413676] usb 1-6.3: SerialNumber: 2XJDU17829010731
[27344.422881] usb-storage 1-6.3:1.1: USB Mass Storage device detected
[27344.423396] scsi host6: usb-storage 1-6.3:1.1
[27345.453849] scsi 6:0:0:0: CD-ROM            Linux    File-CD Gadget   0404 PQ: 0 ANSI: 2
[27345.456329] sr 6:0:0:0: Power-on or device reset occurred
[27345.457413] sr 6:0:0:0: [sr1] scsi-1 drive
[27345.481527] sr 6:0:0:0: Attached scsi CD-ROM sr1
[27345.481790] sr 6:0:0:0: Attached scsi generic sg5 type 5

If I select "File Transfer", i see:

[27427.007868] usb 1-6.4: new high-speed USB device number 15 using xhci_hcd
[27427.109052] usb 1-6.4: New USB device found, idVendor=12d1, idProduct=107e, bcdDevice= 2.99
[27427.109057] usb 1-6.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[27427.109060] usb 1-6.4: Product: WAS-LX1A
[27427.109063] usb 1-6.4: Manufacturer: HUAWEI
[27427.109065] usb 1-6.4: SerialNumber: 2XJDU17829010731
[27427.118244] usb-storage 1-6.4:1.1: USB Mass Storage device detected
[27427.118678] scsi host6: usb-storage 1-6.4:1.1
[27428.140662] scsi 6:0:0:0: CD-ROM            Linux    File-CD Gadget   0404 PQ: 0 ANSI: 2
[27428.141512] sr 6:0:0:0: Power-on or device reset occurred
[27428.142294] sr 6:0:0:0: [sr1] scsi-1 drive
[27428.156111] sr 6:0:0:0: Attached scsi CD-ROM sr1
[27428.156221] sr 6:0:0:0: Attached scsi generic sg5 type 5
[27429.531820] usb 1-6.4: USB disconnect, device number 15
[27429.875838] usb 1-6.4: new high-speed USB device number 16 using xhci_hcd
[27429.977136] usb 1-6.4: New USB device found, idVendor=12d1, idProduct=107e, bcdDevice= 2.99
[27429.977141] usb 1-6.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[27429.977145] usb 1-6.4: Product: WAS-LX1A
[27429.977147] usb 1-6.4: Manufacturer: HUAWEI
[27429.977149] usb 1-6.4: SerialNumber: 2XJDU17829010731
[27429.986290] usb-storage 1-6.4:1.1: USB Mass Storage device detected
[27429.986744] scsi host6: usb-storage 1-6.4:1.1
[27430.988763] scsi 6:0:0:0: CD-ROM            Linux    File-CD Gadget   0404 PQ: 0 ANSI: 2
[27430.989606] sr 6:0:0:0: Power-on or device reset occurred
[27430.990087] sr 6:0:0:0: [sr1] scsi-1 drive
[27431.004077] sr 6:0:0:0: Attached scsi CD-ROM sr1
[27431.004193] sr 6:0:0:0: Attached scsi generic sg5 type 5

Stefanoxjx · wrote on 14 Aug 2020, 14:22

No idea?
I tried with Shaomi mi9t too but result is the same :(