Connections for nRF52 - SWD and VDD outputshttps://devzone.nordicsemi.com/f/nordic-q-a/27825/connections-for-nrf52---swd-and-vdd-outputsI am designing a custom board with nRF52840, powered by USB, no battery, using its internal LDOs to supply other peripherals with 3.3V I have two questions about pins/outputs: Can I take the 3.3V from any of the VDD pins, or is one specificallyen-USTelligent Community 13Mon, 04 Dec 2017 23:49:44 GMTRE: Connections for nRF52 - SWD and VDD outputshttps://devzone.nordicsemi.com/thread/109715?ContentTypeID=1Mon, 04 Dec 2017 23:49:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:841a31ea-fe11-465d-bcda-b8c2b36e4b12mweger<p>While i do believe that you can supply 3.3v to any of the vdd pins you should probably have them all connected in a net. This prevents faults if there is a bad via etc. you connect the vdd to vdd of the programmer. If you&#39;re using the devboard as a programmer the devboard can supply power to the board without an external power supply. This is useful for debugging etc. You need to make sure that the correct voltage is on this line. USB is a 5v protocol.</p><div style="clear:both;"></div>