Version 1.9.0 from ver 17 starting point

[billywalton]

Hi,

I have working apps using custom BLE services on the 17.0 SDK

Now I need to write an app for the nRF5340 so the BLE softdevice can run in the network core

I have downloaded the 1.9.0 SDK using nRF Connect and want to use the SES env

Being as its very different from the 17 SDK, can you suggest a good starting point, I want to reuse the custom service I have from the V17 SDK but cannot see a fitting sample to derive it from

There seems to be no custom service sample, will I be able to start from the peripheral_lbs sample and simply use my existing V17SDK code as it is?

Thanks for the help

[Øyvind]

Hello, 

First I would recommend reading our blog post on nRF Connect SDK and nRF5 SDK statement.

Note that these two are not compatible in regards to the code base due to the new Zephyr OS included in the nRF Connect SDK. Please read the Working with nRF5340DK from our nRF Connect SDK v1.9.0 documentation. 

Kind regards,
Øyvind

[billywalton]

Thanks for your reply

So i guessed I would be re-writing my service :-(

But as I said, there seems to be (unless I have missed it) no sample on how to implement a custom service

So, which sample would be best to start with as a new project if I need:

1) a single custom service with three R/W characteristics,

2) extended advertisements which can be updated whilst the stack is running

3) Option to use coded PHY

[Øyvind]

billywalton said:

So i guessed I would be re-writing my service :-(

Yes, unfortunately. But we will try to support you one your path as best we can. 

billywalton said:

which sample would be best to start with

The Bluetooth: Peripheral LBS and Bluetooth: Peripheral UART samples are both examples of custom services. They both have two characteristics, one for client to server communication, and one for server to client. The UART sample includes a Central UART sample as well

From our DevZone guides, have a look at "Building a Bluetooth application on nRF Connect SDK - Part 1" and "Building a Bluetooth application on nRF Connect SDK - Part 2". Note that it is based on nRF Connect SDK v1.3.1, some changes must be expected.

There is also the "nRF Connect SDK Bluetooth Low Energy tutorial part 1: Custom Service in Peripheral role" and NUS on NCS: The Nordic UART Service with the nRF Connect SDK" to help you on your path.

Kind regards,
Øyvind