https://devzone.nordicsemi.com/f/nordic-q-a/9902/is-it-possible-to-be-dynamic-change-tx-power-in-nrf52-sdk-pxp-exampleI have a question about PXP profile. Could I use the nrF52 (S132) Nordic&#39;s PXP example to dynamic change TX power when I have bonded or connected Android phone device ? I want to dynamic change TX power level (Ex: using SDK API &quot;sd_ble_gap_tx_power_seten-USTelligent Community 13Tue, 03 Nov 2015 03:22:46 GMThttps://devzone.nordicsemi.com/thread/36731?ContentTypeID=1Tue, 03 Nov 2015 03:22:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9ffa40f7-ea01-4fce-8baf-a1a921d48f4dDerek<p>Hi, After refine my source code flow and then use &quot;sd_ble_gap_tx_power_set&quot;. It&#39;s OK!! Thank you for your help !!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/36730?ContentTypeID=1Mon, 26 Oct 2015 10:04:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:67532354-3855-4202-962e-f4a5e21fed0eMartinBL<p>Hi. I&#39;m not exactly sure what you are asking here, but yes, you can change the power level whenever you want. Just use the function you mention, <a href="http://infocenter.nordicsemi.com/index.jsp">sd_ble_gap_tx_power_set()</a>, or you can set it directly in the <a href="http://infocenter.nordicsemi.com/topic/nrf52.v1.7/Chunk1840422508.html?cp=1_1_0_19_1_9#register.TXPOWER">RADIO-&gt;TXPOWER register</a>.</p> <p>You can also measure the <a href="http://infocenter.nordicsemi.com/topic/nrf52.v1.7/Chunk1840422508.html?cp=1_1_0_19_0_9#rssi">RSSI</a> by triggering <a href="http://infocenter.nordicsemi.com/topic/nrf52.v1.7/Chunk1840422508.html#topic">RADIO-&gt;TASKS_RSSISTART</a> and then read from the <a href="http://infocenter.nordicsemi.com/topic/nrf52.v1.7/Chunk1840422508.html?cp=1_1_0_19_1_23#register.RSSISAMPLE">RADIO-&gt;RSSISAMPLE register</a>.</p> <p>This way you can e.g. change the TX power level dynamically based on the measured RSSI.</p><div style="clear:both;"></div>