data transfer via ble nrd5340DK , custom GATT or example?

[ChrtistophAT]

Hello everyone,

I am developing ble data transfer from some custom EMG sensor for decoupling purpose. The desired ADC sampling is very fast (200us) and sampled data should be placed in an array to for example 1000 values. So every 0.2 seconds array buffer is full and should be broadcasted.

I road 

https://novelbits.io/design-bluetooth-low-energy-gatt-server-database/

and my question, do I have to creat my own GATT server or is there an example code including GATT which suits nrf connect sdk and nrf5340 and of course my desired purpose.

Many thanks in advance,

Christoph

[Hieu]

Hi Christoph,

nRF Connect SDK provides the Peripheral UART sample, which could serve as a starting point.

From there, you can either continue to use the Nordic UART Service, or create a minimally modified copy of the service, or implement your own service that is based on it.

How would you like checking that out and then let me know if you have any further questions?

Hieu

[ChrtistophAT]

Hi Hieu,

I will look for your recommended example code and come back to you!

Thank you,

Christoph