nRF52840-dk BLE keyboard and Windows10

RE: nRF52840-dk BLE keyboard and Windows10

daviddedwin — Thu, 14 Jan 2021 16:57:41 GMT

The mouse seem buggy on the type of HID reports it is sending, but at-least it is connecting ok.

Can you post the driver info of one of the Bluetooth dongles that you are using. I am assuming that your Win 10 does not have built-in Bluetooth. Just for sanity's sake can you disable and enable Bluetooth when the dongle is inserted for flushing the Bluetooth name cache.

Can do a full erase of the DK using the nrfjprog instead of the button press and reset as the example suggests (just to dodge around a possible bug in the code).

Do you a spare DK board that you can setup as a sniffer ? We should be able to see the advertisement packets on the sniffer and be able to decide if the right packets are being sent by the keyboard HID example.
(typically you need the appearance, flags and Service AD types)

[Edited to add the AD Types that are usually needed for the Win 10 to see the keyboard]

RE: nRF52840-dk BLE keyboard and Windows10

ilario — Thu, 14 Jan 2021 15:07:39 GMT

Generally Nordic_keyboard was not discovered. Time to time was discovered but can't connect to.

Flash erase on DK: tested but without good difference

Mouse demo results: connection ok (LED1 on) on Linux but cursor is not moved when buttons are pressed on DK. On Win10 PC (a different PC, not used yesterday for the tests): same result as with Linux PC.

RE: nRF52840-dk BLE keyboard and Windows10

ilario — Thu, 14 Jan 2021 15:05:24 GMT

Thank you for your suggestion. I'll check about JUSTWORKS / PASSKEY in the code.

When we tested the BLE mouse demo, we used the demo code as is. The same for keyboard demo.

RE: nRF52840-dk BLE keyboard and Windows10

ilario — Thu, 14 Jan 2021 14:50:39 GMT

We tested others BLE and USB-hid examples with the DK.

But Bluetooth was turned on/off each time because we removed the USB BLE key many times

RE: nRF52840-dk BLE keyboard and Windows10

ilario — Thu, 14 Jan 2021 14:44:33 GMT

No, just used the LED.

Have you any suggestion for test with others ways, please?

RE: nRF52840-dk BLE keyboard and Windows10

daviddedwin — Thu, 14 Jan 2021 11:56:33 GMT

Can you check if you have not used any other profile on the DK and connected to the Win 10, this would confuse the Bluetooth cache on the Win 10.
Check this case .

Typically switching off and then switching on the Bluetooth in the Win 10 PC will remove the Bluetooth cache.

RE: nRF52840-dk BLE keyboard and Windows10

ilario — Thu, 14 Jan 2021 11:53:36 GMT

[quote userid="6462" url="~/f/nordic-q-a/70468/nrf52840-dk-ble-keyboard-and-windows10/289101#289101"]Do you need to un-bond it from the Linux PC?[/quote]

We removed the USB BLE key from Linux PC and moved the key to Win10 PC.

When under the Win10 PC, also tested a DK reset and also tested to remove bond info of the DK using the button2+reset described in SDK documentation.

RE: nRF52840-dk BLE keyboard and Windows10

awneil — Thu, 14 Jan 2021 11:52:28 GMT

[quote userid="98866" url="~/f/nordic-q-a/70468/nrf52840-dk-ble-keyboard-and-windows10/289173#289173"]the led1 was blinking[/quote]

But have you checked that it really is advertising; ie, the LED isn't lying ... ?

RE: nRF52840-dk BLE keyboard and Windows10

daviddedwin — Thu, 14 Jan 2021 11:50:48 GMT

Sorry, I noticed that you said that Windows did not even see the device. Can you also erase the flash on the DK and program the keyboard demo again, so the advertising will go back to the not paired state and not the re-connecting state.

RE: nRF52840-dk BLE keyboard and Windows10

daviddedwin — Thu, 14 Jan 2021 11:47:44 GMT

The additonal restriction on iOS and Win 10 for keybaords that I had noticed can be to use a PASSKEY for pairing instead of JUSTWORKS.
Can you take a quick look at the code ble_app_hids_keyboard and verify it it is using JUSTWORKS , you can also check if the mouse demo works as that used to work woth JUSTWORKS

RE: nRF52840-dk BLE keyboard and Windows10

ilario — Thu, 14 Jan 2021 11:47:12 GMT

[quote userid="6462" url="~/f/nordic-q-a/70468/nrf52840-dk-ble-keyboard-and-windows10/289101#289101"]Is the device actually advertising?[/quote]

Yes, the led1 was blinking with about 2 seconds period as described in SDK documentation

RE: nRF52840-dk BLE keyboard and Windows10

ilario — Thu, 14 Jan 2021 11:43:11 GMT

Yes, we have turned-off ble or removed the USB BLE keys from the PC used to test

RE: nRF52840-dk BLE keyboard and Windows10

daviddedwin — Thu, 14 Jan 2021 09:40:27 GMT

Make sure you have deleted the pairing information on the linux PC or any other device that had been paired earlier with the keyboard so it does not re-connect to the DK and block the Win 10 from connecting.

RE: nRF52840-dk BLE keyboard and Windows10

awneil — Thu, 14 Jan 2021 09:40:18 GMT

[quote userid="98866" url="~/f/nordic-q-a/70468/nrf52840-dk-ble-keyboard-and-windows10"]Win10 doesn't see the "Nordic_Keyboard" device.[/quote]

Is the device actually advertising?

Do you need to un-bond it from the Linux PC?