how to change the Radio transmit power of nRF52-DK?

[ALE]

Hi,

I am a hardware designer. I have little knowledge about firmware or software. Now I want to apply the nRF52832 to an ultra-low power application as a beacon.

I am testing the nRF52-DK using the original code of "nRF5_SDK_13.0.0_04a0bfd\examples\ble_peripheral\ble_app_beacon ".

I want to change the radio transmit power to -40dBm. I have read the devzone.nordicsemi.com/.../ and devzone.nordicsemi.com/.../

But I still don`t understand how to realize it. Would you please tell me how to make some revision in the main.c file so that I can get a Tx_power=-40dBm? (For example, to add some code in the main.c)

Looking forward to your answer. Thanks in advance. Best regards

[endnode]

Use sd_ble_gap_tx_power_set function according to the documentation (if you are in doubts run full-text search over all *.c files in the SDK, it's definitely used there;).

[unknown_DobbY]

You simply cannot. nRF52832 only supports tx power +4 to -20 dBm. Therefore it will not be able to broadcast in -40 dBm tx power.