External AT-interface to the NRF9160https://devzone.nordicsemi.com/f/nordic-q-a/59240/external-at-interface-to-the-nrf9160Hello, I got the issue to run the NRF9160 DK as an external AT-Modem. What I need to do is to issue AT-Commands over the UART, which control the NRF9160 modem through an external UART interface. Currently, I have wiped out the NRF52840 and I haveen-USTelligent Community 13Thu, 19 Mar 2020 09:10:05 GMTRE: External AT-interface to the NRF9160https://devzone.nordicsemi.com/thread/240574?ContentTypeID=1Thu, 19 Mar 2020 09:10:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4c7b3799-fc3e-4459-a085-21eb34ad7694Heidi<p>Hi!</p> <p>Did you make sure to switch the GPIO output level on the nRF91 (SW11) to be 3V?</p> <p>&nbsp;</p> [quote user=""]Currently, I have wiped out the NRF52840 and I have compiled and flashed the serial LTE modem example[/quote] <p>&nbsp;This sentence confuses me - is this the nRF52840 on the nRF9160 DK? Or a separate nRF52840 device? And you flashed the SLM sample to the nF9160 SiP correct?&nbsp;</p> <p></p> <p>Best regards,</p> <p>Heidi</p><div style="clear:both;"></div>