https://devzone.nordicsemi.com/f/nordic-q-a/61546/nrf52833-power-on-problem-caused-by-usb-vbusHi... I am developing a product using nRF52833 . (S113, SDK 16, IAR8) My board uses a lithium-ion battery and uses usb charging. My board turns on automatically when the USB cable is connected while the power is off. Why?? I want VBUSen-USTelligent Community 13Wed, 27 May 2020 04:03:58 GMThttps://devzone.nordicsemi.com/thread/251814?ContentTypeID=1Wed, 27 May 2020 04:03:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9ccf9d79-b218-480b-b6ab-88d46a7a3794jaeheung<p>Hi.&nbsp;</p> <p></p> <p>There was a mistake in connecting the battery. The problem was solved.<br />Thank you for your answer</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/250948?ContentTypeID=1Wed, 20 May 2020 11:52:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0c0b0791-52a4-4ad6-9663-d665f7b14b01Jared<p>Hi,</p> <p>What voltage do you measure on VDD?</p><div style="clear:both;"></div>