Removing Service Change characteristic

RE: Removing Service Change characteristic

Srikanth — Thu, 30 Jun 2022 10:36:23 GMT

Hi,

we have an observation with Nordic SOC's compared to other SDK's,

overall Connection time is more between peripheral(Device) and central(Mobile app).

When we look at the log the Discovery is taking more time from mobile for Nordic SOC's.

Do we have any configuration options enable/disable available ? for Generic Attribute service (UUID 0x1801) with latest SDK's.

Do we have any further optimization techniques/recommendations for lesser discovery time for mobile apps ?

1) we have already removed service change characteristic .

2) connection parameters already configured as low.

Thanks,

Srikanth R V

Joakim Jakobsen — Thu, 01 Jul 2021 13:42:32 GMT

Hi.

The Generic Attribute service (UUID 0x1801) is mandatory.
The service change characteristic is optional.

Br,
Joakim

Srikanth — Wed, 30 Jun 2021 12:35:22 GMT

Hi,

we are using SDK16 and softdevice S140 7.0.1(nrf52840).

can it be possible to remove 1801 service itself ?

Thanks,

Srikanth R V

Joakim Jakobsen — Fri, 25 Jun 2021 14:10:53 GMT

Hi.

Could you share which version of the SDK and which device you are working with?

For the Service change characteristic, I think you only need to enable/disable NRF_SDH_BLE_SERVICE_CHANGED.

Br,
Joakim