What is the purpose of "write" property in Device Name characteristic of Generic Access service in nRF52840 S140 SDK16?

[Nikosant03]

Hi everyone,

I was wondering what is the purpose of "write" property in Device Name characteristic (UUID2A00) of Generic Access service (UUID 1800).

Why should I change the device name?

This is before I change the Device Name

This is after changing Device Name by writing "TEST"  to the write property

The name that the peripheral advertises remains the same in both case.. So what is the practical usage of this property in Device Name characteristic?

Thanks in advance 

Nick

[Amanda Hsieh]

Hi, 

Please see this thread.

-Amanda H.

[Nikosant03]

Hi Amanda and thank you for your answer,

So the Device Name characteristic is actually used to change the name that the device is advertising?

[Amanda Hsieh]

Hi, 

To change the name being advertised as well, you will need to disable, re-initialize, and start advertising again, after you have changed the characteristic with sd_ble_gap_device_name_set().

-Amanda H.

[Nikosant03]

Thank you Amanda, but still, it is not clear to me what is the practical usage of this property in Device Name characteristic?

I mean, why does it exist and how it could be helpful for me?

Thanks in advance

Nick

[Amanda Hsieh]

Hi Nikos,

Nikosant03 said:

what is the practical usage of this property in Device Name characteristic?

You could use it to set or get the device name. There are many similar discussions and use cases on the Devzon.

Nikosant03 said:

why does it exist and how it could be helpful for me?

That is one of the characteristics in the Generic Access service which is defined in here. It depends on how/what you want to use it. You can search on Devzon to see other people's use cases. 

-Amanda H.