Advertizing name

[Sameh]

Hello, I am developing a BLE application using nRF51822 on SDK 12.3 and SD 2.0.1.

I have an application with NUS service, in which I set the device name by sd_ble_gap_device_name_set. And the device name length is 26 bytes. 

Then, I added the security feature in my development.

Without security, the device name is shown correctly in nRF connect and nRF tool box.

But the problem is that with security , only the 22 first bytes of the device name are shown  in nRF connect and nRF tool box too.

And in both cases I can connect and disconnect correctly. 

PS: I tested with the same BLE scanners.

So what's the impact of security on the advertizing name?

[Joakim Jakobsen]

Hi. 

The reason for this is most likely that you don't have enough space for the entire name in the advertisement packet. You can only fit 31 bytes in a single packet. 

Are you adding any extra data to the advertising packet due to the addition of the security feature?

Best regards, 
Joakim.