https://devzone.nordicsemi.com/f/nordic-q-a/43688/twi-scanner-shows-unknown-addressWhen I run the TWI scanner example, an unknown address shows up in tandem with my TWI device address. I am connecting a MAX30101 EV kit daughter board to the nRF52840-DK. Its address is 0x57, which shows up. But the address 0x19 also shows up, anden-USTelligent Community 13Thu, 14 Feb 2019 20:43:59 GMThttps://devzone.nordicsemi.com/thread/171238?ContentTypeID=1Thu, 14 Feb 2019 20:43:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ecce63c2-bb24-4d8d-85fa-a3d06fba66eb&#216;yvind<p>Not sure what caused the &quot;ghost&quot; address, but it seems to come from the other board.&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/171223?ContentTypeID=1Thu, 14 Feb 2019 18:05:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:93b62d65-c615-41e7-9f22-eedc5b16b9fblufeitan<p>The debug terminal shows &quot;No device was found.&quot;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/171171?ContentTypeID=1Thu, 14 Feb 2019 13:59:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0f9c76dc-2d82-4508-8fc1-fa0e0bc4aa30&#216;yvind<p>Hello,</p> <p>I am not able to reproduce this error on my&nbsp;nRF52840-DK. What happens if you disconnect pins 26 an 27, and not have anything connected to the DK?</p> <p>Best regards,</p> <p>Oeyvind</p><div style="clear:both;"></div>