code to enable bluetooth on nRF52840 DK

RE: code to enable bluetooth on nRF52840 DK

williammoberg — Sat, 25 Oct 2025 08:54:36 GMT

You can enable Bluetooth on the nRF52840 DK using the Peripheral LBS sample from nRF Connect SDK — it’s under nrf/samples/bluetooth/peripheral_lbs. Build, flash, and connect via the nRF Connect for Mobile app to test pairing.

If you just want quick serial Bluetooth without BLE coding, try a JDY-31 3.0 SSP Bluetooth Module, it offers simple UART-to-Bluetooth 3.0 communication and pairs easily with Android.

RE: code to enable bluetooth on nRF52840 DK

Marte Myrvold — Wed, 17 Apr 2024 06:54:04 GMT

Hi,

This ticket is more than two years old. Please create a new ticket for your issue.

Best regards,
Marte

RE: code to enable bluetooth on nRF52840 DK

Deep_Bang — Wed, 17 Apr 2024 05:41:02 GMT

Hi Bakas,

Long back I worked on this.

I don't exactly remember what I did to overcome those errors.

May be somewhere in below link tutorials you may find the solution which you are looking for:

https://www.youtube.com/playlist?list=PLx_tBuQ_KSqEt7NK-H7Lu78lT2OijwIMl

Regards,

Deep_Bang

RE: code to enable bluetooth on nRF52840 DK

Bakas — Tue, 16 Apr 2024 22:53:36 GMT

Can you help me solving this?

RE: code to enable bluetooth on nRF52840 DK

Deep_Bang — Thu, 24 Mar 2022 11:01:24 GMT

hi,

i could resolve it. Thank you for the support.

RE: code to enable bluetooth on nRF52840 DK

Deep_Bang — Thu, 24 Mar 2022 07:47:06 GMT

Hi Marte,

Yes, now i can see Nordic-LBS in scan list of my mobile.

but to 'connect' its giving 3 options like

1) Connect with autoconnect

2) Connect with preferred PHY

3) Bond

I could'nt connect with any of these options and in option bond, it is asking for a password.

Another quiery is - under peripheral LBS explanation window, under Testing, 4th bullet point "Nordic LED Button Service" where exactly will i be able to find this service option.

RE: code to enable bluetooth on nRF52840 DK

Deep_Bang — Thu, 24 Mar 2022 07:08:35 GMT

hi Marte,

I could clear those errors listed in problem window.

then, i build and flashed again. But still Nordic_LBS was not visible when tried to scan througrh nRF connect for mobile app.

RE: code to enable bluetooth on nRF52840 DK

Marte Myrvold — Wed, 23 Mar 2022 12:26:08 GMT

These files should be included in the nRF Connect SDK installation. How did you install the SDK?

I recommend watching our nRF Connect for VS Code tutorials on YouTube to learn how to get started. There you will learn how to install the SDK and toolchain, as well as how to create, build, and flash applications.

RE: code to enable bluetooth on nRF52840 DK

Deep_Bang — Wed, 23 Mar 2022 11:54:28 GMT

Which standard files to install to include these .h files?

RE: code to enable bluetooth on nRF52840 DK

Marte Myrvold — Wed, 23 Mar 2022 09:54:31 GMT

Hi,

[quote user="Deep_Bang"]file:///C:/Users/deepthi.hs/Downloads/Capture.PNG[/quote]

Please upload the file using Insert > Image/video/file.

[quote user="Deep_Bang"]Errors showing in problem window while doing build and flash.[/quote]

So you the reason you are not seeing the DK when scanning is because the DK was not successfully flashed, or is this another issue?

Best regards,

Marte

RE: code to enable bluetooth on nRF52840 DK

Deep_Bang — Wed, 23 Mar 2022 06:07:01 GMT

file:///C:/Users/deepthi.hs/Downloads/Capture.PNG

Errors showing in problem window while doing build and flash.

RE: code to enable bluetooth on nRF52840 DK

Deep_Bang — Wed, 23 Mar 2022 05:27:31 GMT

hi Marte,

I am trying to work with peripheral LBS sample. i flashed this code on nRF52840 dk.

i am using nRF52840 dk only . I am not using dongle .

i have android based mobile with 'nRF connect for mobile' app installed.

when i turn on the app in mobile with nRF dk power on , the nrf dk (Nodic-LBS)is not listed in scanning window of mobile.why dk kit and mobile are not getting paired.

RE: code to enable bluetooth on nRF52840 DK

Deeksha NV — Wed, 23 Mar 2022 05:20:28 GMT

hi Marte,

I am trying to work with peripheral LBS sample. i flashed this code on nRF52840 dk.

i am using nRF52840 dk only . I am not using dongle .

i have android based mobile with 'nRF connect for mobile' app installed.

when i turn on the app in mobile with nRF dk power on , the nrf dk (Nodic-LBS)is not listed in scanning window of mobile.why dk kit and mobile are not getting paired.

RE: code to enable bluetooth on nRF52840 DK

Marte Myrvold — Tue, 22 Mar 2022 12:04:07 GMT

Hi,

For how to enable Bluetooth I recommend checking out our existing Bluetooth samples in nRF Connect SDK. You can find the examples under <ncs_installation>/nrf/samples/bluetooth, and documentation for the samples can be found here: Bluetooth samples. The Peripheral LBS sample is a simple example that works well as a starting point.

Best regards,

Marte