Wheather can i chenge the device name when the device connected?

[Juliane]

I want to change the device name when the device connected,how can i do it with my sdk5.1 in the nrf51822 s110 ble_app_hrs?

[Ole Morten]

Whose device name are you looking to find? If you want to check your own device name, you can use sd_ble_gap_device_name_get(), but if you need the name of the peer device, you'll have to implement a GATT Client, discovering the GAP service and then read the Device Name characteristic.

However, if you're looking to identify a single central device, I'd recommend you to instead do it either based on address or based on shared encryption keys.