https://devzone.nordicsemi.com/f/nordic-q-a/86187/nrf52811-used-without-bluetooth-functionalityHi, currently I am using nRF52811 in one product with BLE functionality. Now I would like to use the same MCU in other product where BLE is not needed. In this case I would like to re-use part of the electronics and software which I already use. Soen-USTelligent Community 13Wed, 30 Mar 2022 07:47:09 GMThttps://devzone.nordicsemi.com/thread/360676?ContentTypeID=1Wed, 30 Mar 2022 07:47:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2732f160-3e59-427f-8c05-e3956e486191Priyanka<p>Hi,</p> <p>ANT and DEC2 can be left floating, but DEC3 should have a de-coupling cap.</p> <p>Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/360361?ContentTypeID=1Mon, 28 Mar 2022 15:30:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3ecca887-62ec-4564-bf07-0b5380dca74bJsSenso<p>HI,&nbsp;</p> <p>thank you for your response. Just to be sure, if not using Radio (BLE) I can leave ANT, DEC2 and DEC3 floating?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/360222?ContentTypeID=1Mon, 28 Mar 2022 10:15:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b407e0f7-ba0b-48a7-8927-b592f9b952fcPriyanka<p>Hi,</p> <p>Yes, it can be used for UART , SPI etc. and for some CPU processing. But you don&#39;t need to do anything with the hardware and can keep everything as it is. You can remove the antenna though as it is not needed.</p> <p>Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>