https://devzone.nordicsemi.com/f/nordic-q-a/57199/using-the-nrf9160-to-send-and-receive-data-over-rs485-using-uartHello, I&#39;m pretty new to rtos and totally new to nordic&#39;s nRF9160. I&#39;ve been trying to get this working all day and can&#39;t really seem to figure it out based on the resources I have found so far. So my goal is to connect using rs485 to an externalen-USTelligent Community 13Tue, 04 Feb 2020 16:41:07 GMThttps://devzone.nordicsemi.com/thread/232657?ContentTypeID=1Tue, 04 Feb 2020 16:41:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d68a5287-2f50-40ae-8e63-948b52db9b5fHakon<p>Hey,</p> <p>You need to also change the .conf to include the following</p> <p>CONFIG_SERIAL=y</p> <p>CONFIG_UART_INTERRUPT_DRIVEN=y</p> <p>CONFIG_TRUSTED_EXECUTION_NONSECURE=y</p> <p>CONFIG_MAIN_STACK_SIZE=4096</p><div style="clear:both;"></div>