RE: How to properly set TX Power when advertising as peripheral

toni95 — Thu, 15 Jan 2026 15:16:54 GMT

Hi,

thanks for your reply. You pointed me to the right direction. The way you proposed did not work but by creating the file in the directory sysbuild/ipc_radio/ it worked. Thanks!

Best,

Toni

RE: How to properly set TX Power when advertising as peripheral

Syed Maysum Abbas Zaidi — Thu, 15 Jan 2026 10:14:01 GMT

Hi,

On Thingy:53 (nRF5340-based), the Bluetooth controller runs on the network core, so controller Kconfig options like CONFIG_BT_CTLR_TX_PWR_MINUS_20 must be applied to the network-core image, not in the application core’s prj.conf. In practice you can do it in the following way:

In the application folder, create child_image/hci_ipc.conf and put CONFIG_BT_CTLR_TX_PWR_MINUS_20=y inside that file and then do a pristine build. Also remember to remove it from the app’s prj.conf (optional but recommended to avoid confusion).

Best Regards,
Syed Maysum