How to configure nrf52840 dongle to build bluez so that it is visible in hciconfig

[nagesh.shamnur]

I have procured nRF52840 Dongle and i followed the instructions as mentioned in the link https://infocenter.nordicsemi.com/pdf/nRF52840_Dongle_User_Guide_v1.1.pdf and i am able to configure, setup and scan and connect ble devices using nrf connect App. But however my goal is to use this nRF dongle as a ble interface on my RPi4B and not use the onboard ble available.

So, i am interested to know the realize the same. I went through the previous tickets but i couldn't find any reply which i can use to achieve the goal what i am looking for. i saw some discussion on flasing bluez stack. Any detailed steps would be highly appreciated.

Kindly let me know how to realize the same.

Regards

[awneil]

nagesh.shamnur said:

not use the onboard ble available.

Why not?

[nagesh.shamnur]

BLE connection using bluetoothctl is not smooth when trying to connect my RPi4B with my laptop. WIth multiple retries, once in a while ble connection is successful. Watching btmon shows that the their is disconnection initiated but not much info available to pinpoint the cause of the problem.

[Simonr]

Hi

So you want to use the Dongle as a "regular" USB dongle scanning over BLE, correct? Please check out our BLE_app_uart_c example which can be used as a scanning device. However, ble_app_uart_c example uses UART instead of USB so it will require an additional USB-UART bridge to communicate with the Pi through USB. We don't have an USB version of this project but you can check out the USBD BLE UART Example and use that as a reference to how you can replace UART with USB.

Best regards,

Simon