Is there any way to change/set custom advertising and connection intervals wtih using CAF BLE Advertising module

RE: Is there any way to change/set custom advertising and connection intervals wtih using CAF BLE Advertising module

Hung Bui — Fri, 20 Feb 2026 12:02:47 GMT

Great! I'm glad that it worked :) You can close the ticket and open a new one when there is anything else needed.

RE: Is there any way to change/set custom advertising and connection intervals wtih using CAF BLE Advertising module

SemihAydin — Thu, 19 Feb 2026 14:38:52 GMT

Hi Hung,

Thank you so much, It worked for me!

I also found Kconfig definition from the link below and I am sharing this information because I think it may be important.

"Minimum Advertising Interval shall be less than or equal to the Maximum Advertising Interval. The Minimum Advertising Interval and Maximum Advertising Interval should not be the same value (as stated in Bluetooth Core Spec 5.2, section 7.8.5) "

https://docs.nordicsemi.com/bundle/ncs-1.9.2-dev1/page/kconfig/CONFIG_CAF_BLE_ADV_SLOW_INT_MAX.html

Additionally, I managed to adjust the connection range using the following:

CONFIG_BT_PERIPHERAL_PREF_MIN_INT=75

CONFIG_BT_PERIPHERAL_PREF_MAX_INT=150

CONFIG_BT_PERIPHERAL_PREF_LATENCY=0

CONFIG_BT_PERIPHERAL_PREF_TIMEOUT=400

Thanks for your support!

RE: Is there any way to change/set custom advertising and connection intervals wtih using CAF BLE Advertising module

Hung Bui — Thu, 19 Feb 2026 12:46:34 GMT

Hi Semih,
Could you try using

CONFIG_CAF_BLE_ADV_FAST_INT_MIN

CONFIG_CAF_BLE_ADV_FAST_INT_MAX

CONFIG_CAF_BLE_ADV_SLOW_INT_MIN

CONFIG_CAF_BLE_ADV_SLOW_INT_MAX

For example if you want 1000ms adverting, you can try setting

CONFIG_CAF_BLE_ADV_SLOW_INT_MIN=0x640

CONFIG_CAF_BLE_ADV_SLOW_INT_MAX=0x640

The unit here is N * 0.625 ms

Regarding connection interval, it's dictated by the central. The peripheral can request connection parameter update to request a change but I don't think it's covered by CAF. Please refer to other samples (for example throughput) in the SDK for that.