automatic reload the device name

[Moe]

Hi,

I'm trying to change the device name of the board. I'm able to write the new name into the characteristic. When the name was written in the characteristic the advertised name doesn't change. The name changes after I reinitialize the advertising and restart it (was described here). This is done by the button_event_handler.

My problem is that I had to use a Button to reinitialize the advertising. Is there a different way, so I don't have to push a button and it does the reinitialisation automaticly after the new name is written into the characteristic?

I tought of 3 ways. Is any of this possible or are there different approaches?

1. Can I implement a handler for the device name. If the value of this characteristic changes the handler would reinitailize the advertising. I didn't found a way to implement a handler for the Device Name characteristic. Is it even possible?
2. Or is it possible display the name without reinitializing the advertising with something like 

   ble_advertising_advdata_update(); 

   ? But the data would be updated even if the device name didn't changed.
3. This is more like a workaround. I would implement a characteristic with a handler that restarts and reinitializes the advertising. But in my opinion this is not a nice way to solve this problem

I'm using:

nRF52840-DK

peripheral/ble_app_blinky/s140

SDK 15.2.0

Thank you in advance

[Bjørn Kvaale]

What if you add the BLE_UUID_GAP_CHARACTERISTIC_DEVICE_NAME characteristic in ble_types.h to a service & then do what you recommended in step 3?

[Moe]

Is the only way for this solution to create a new service and characteristic with the uuid of BLE_UUID_GAP_CHARACTERISTIC_DEVICE_NAME for the implementation of a handler? This sounds like a workaround. Does this mean I have two Characteristics for the device name in my GATT-Profile and only one is functioning the way I want?

Why am I not able to use step 1?

[Bjørn Kvaale]

Very sorry for the delayed response. You should be able to do something very similar to this.