https://devzone.nordicsemi.com/f/nordic-q-a/68303/nrf52840-and-nfcHi, I would like to double check that is it so that IF I am using high voltage supply (e.g. +5V) with nRF52840, it is NOT possible to use external power supply AND/OR NFC?? Thank you in advance!! Rgds, -Kari-en-USTelligent Community 13Tue, 17 Nov 2020 19:54:11 GMThttps://devzone.nordicsemi.com/thread/280471?ContentTypeID=1Tue, 17 Nov 2020 19:54:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a2b1ca14-1679-4e65-af58-44424a548468Joakim Jakobsen<p>No problem. Happy to help!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/280352?ContentTypeID=1Tue, 17 Nov 2020 12:42:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:57266380-9bb6-4263-83f9-b0ae7e823d46kmalmiv16<p>Yes thanks!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/280326?ContentTypeID=1Tue, 17 Nov 2020 11:25:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:62864458-eb09-41d5-b13b-8a35e3e7bfd4Joakim Jakobsen<p>Hi Kari!</p> <p>I don&#39;t know where you found that information. But if you are using the nRF52840, there is nothing wrong with using both high voltage, external power supply and NFC. </p> <p>Br, <br />Joakim</p><div style="clear:both;"></div>