ATT-MTU Length s113 nrf52833

[Goutam Hegde]

Hello I am trying to develop an application with NRF52833 development board and s113 softdevice.

I want to create a write characteristic which requires 247 ATT-MTU size at a connection interval of  10 ms. 

Can i achieve this with s113 softdevice? If not, What is the recommended soft-device to achieve this?

[Simonr]

Hi

Here you can see the key features of the S113 SoftDevice. As you can see, it does support a configurable ATT MTU, so it should not be a problem to develop an application that does this. You can use our custom_ble_service example as a template, as it teaches you how to create your own custom services and characteristics.

Keep in mind that you can not make a central application using the S113 SoftDevice, so in case you'd like a central application you will have to use SoftDevice S140 instead. Both of these are however compatible with the NRF52833, so it is entirely up to you and what your application needs as to what SoftDevice to use here.

Best regards,

Simon