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CC2340R5: Services are displaying it as "Unknown service"

Part Number: CC2340R5

Hi,

Are the custom BLE services showing up as "Unknown services" in the nRF Connect application? Is it necessary to register them with the Bluetooth Special Interest Group (SIG) in order to label them as Service 1 and Service 2?

Regards,

Rahul K V

  • Hi Rahul,

    I am unable to provide support with regards to what the third-party ble scanning application is doing, but my guess would be that it is parsing the service UUID and comparing it to a locally stored list of custom and BLE registered UUIDs in order to label it properly. For development purposes, I would recommend going off the service UUID instead of the label to identify the correct service in your application.

    Best Regards,

    Jan

  • Hi Jan,

    I am not just specific to the third-party application. Is it necessary to register with SIG in order to have a distinct label?

    Regards,
    Rahul K V

  • Hi Rahul,

    If you are using custom/proprietary (non-SIG-adopted) services, then you must use a 128-bit UUID to avoid collisions. However, if you want your custom service to have a dedicated UUID that is 16 or 32 bit, then this must be acquired from the SIG.

    Best Regards,

    Jan