RE: change UUID

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Amanda Hsieh — Thu, 14 May 2020 17:37:03 GMT

Hi,

If you want to change 128bit freely, you will have to change the Base UUID. Take a look at this under Universally Unique ID (UUID).

You need multiple base UUIDs if you are not changing the octets used for the 16/32 bit service UUID. But you also need to specify the 16 bit part.

sd_ble_gatts_service_add() - requires pointer to 16 -bit uuid with uuid.type referencing the base uuid.

Please also see API doc for sd_ble_uuid_vs_add:

octet 12 and 13 of the base uuid will be ignored so those need to be specified when you add services/characteristics.

-Amanda H