RE: GATT Client & Server

Brandon Kuhn — Tue, 12 Jun 2018 14:04:21 GMT

Thanks Sigurd - that's very helpful.

RE: GATT Client & Server

Sigurd — Tue, 12 Jun 2018 13:43:23 GMT

Hi,

SSP is a classic Bluetooth profile, and doesn't exist for Bluetooth low energy. Much of the philosophy with low energy is that you are not restricted to using the official profiles, compared to BR/EDR. It's very easy to create your own profile and proprietary service, to enable you to transfer data in sensible chunks instead of just cramming all kinds of data together in serial packages. The flexible profile architecture in BLE allows everyone to make their own customized profiles for their particular application.

That said, we have created a UART/Serial Port Emulation BLE service called Nordic UART Service (NUS) that is meant as an alternative to SPP, and it can be used as a starting point for implementing your own proprietary service. More information about NUS can be found here.

A tutorial on how to create a custom service with a custom value characteristic can be found here.

We have some BLE tutorials here, they are a little bit outdated, but their explanation about the BLE basic is still valid.

A introduction video to BLE can be found here.

The nRF5 SDK can be downloaded from here.

Documentation can be found here.