getDevices() returns an empty list on Windows 11

[FLATT-Dev]

This code

const bluetooth = new Bluetooth({ deviceFound });
const device = await bluetooth.getDevices();

returns an empty list and this message in the console

[INFO] SimpleBLE: D:\a\webbluetooth\webbluetooth\SimpleBLE\simpleble\src\backends\windows\Utils.cpp:33 in initialize_winrt: CoGetApartmentType: cotype=-1, qualifier=0, result=800401F0
[INFO] SimpleBLE: D:\a\webbluetooth\webbluetooth\SimpleBLE\simpleble\src\backends\windows\Utils.cpp:41 in initialize_winrt: RoInitialize: result=0

The PC runs Windows 11 and has a built in Bluetooth adapter
Any ideas how to fix?
Thank you

[thegecko]

If possible, can you see if the underlying bluetooth engine works on your system?

https://github.com/OpenBluetoothToolbox/SimpleBLE

[FLATT-Dev]

Unfortunately I'm not set up to do that at the moment so it will take time.
Looking at the SimpleBLE supported platforms it says "Windows 10+" but does not explicitly list Windows 11 so I'm suspicious. I'll try on Windows 10 and let you know
Thank you!

[thegecko]

Windows 10 should work, I test on it :)

[kilotone]

I am able to reproduce, the same code for discovering at least works from the normal navigator bluetooth implementation
https://googlechrome.github.io/samples/web-bluetooth/get-devices.html

[kilotone]

I am able to reproduce, the same code for discovering at least works from the normal navigator bluetooth implementation https://googlechrome.github.io/samples/web-bluetooth/get-devices.html

Welp, disregard that, I misunderstood the design pattern and was trying to extend the calls into an emitter pattern. Discovered that You need to call bluetooth.requestdevice to populate the devices, then getDevices()

[DaryeDev]

Bump! Same happening here.

I did try simplepyble, that also uses SimpleBLE, and worked; but I do need a JS implementation...

[thegecko]

I need to see some reproducer code for this issue, please

[chdh]

I need to see some reproducer code for this issue, please

Here is a simple test case.

testCase.zip

[jubesab]

Hi @FLATT-Dev, I ran @chdh test case with 3.3.2 on Win 11 Pro 24H2 and getDevices() behaves as it should there. See #331. What exact version of Win are you using?

[chdh]

@jubesab getDevices() returns the devices array.
The only place where an entry is added to this array is line 302:

devices.push(bluetoothDevice);

This line is only executed when the condition of the IF statement is met:

if (this.options?.allowAllDevices || this.allowedDevices.has(deviceInfo.id)) {

allowAllDevices is not set in my test case for this issue and the allowedDevices set is empty. I don't understand how this could ever work.