https://devzone.nordicsemi.com/f/nordic-q-a/111675/nrf52840-uart-output-for-coprocessorDear all: I have prepare env for border router successfully following this link( developer.nordicsemi.com/.../tools.html , Raspberry Pi4 and nRF52840( RCP: radio coprocessor ) connected via USB. Now I want to change USB to UART between Pi4 and nRF52840en-USTelligent Community 13Sun, 02 Jun 2024 03:46:14 GMThttps://devzone.nordicsemi.com/thread/486986?ContentTypeID=1Sun, 02 Jun 2024 03:46:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7e766429-8983-4858-b882-588a5eb722absusepc<p>&nbsp;<a href="https://devzone.nordicsemi.com/members/edvin-holmseth">Edvin</a>&nbsp;</p> <p>&nbsp; &nbsp; &nbsp; &nbsp; Thanks to your great support!</p> <p>&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;I have configured RPi4 as well as nRF52840DK done, and connect them with UART cable pass.&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/486909?ContentTypeID=1Fri, 31 May 2024 12:49:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:61b32c63-68df-429a-8058-65402c3b1a94Edvin<p>Hello Chuan,</p> <p>Please check the documentation of the <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/openthread/coprocessor/README.html">Thread Co-Processor sample</a>.</p> <p>In addition, the&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/protocols/thread/tools.html#configuring-a-radio-co-processor">configuring a radio co processor</a>&nbsp;documentation may be helpful.</p> <p>Basically, if you build this sample for the nRF52840 DK it should default to using the UART. All the samples that are configured to use UART will use pins P0.06 and P0.08, as these are routed to the onboard debugger. Therefore, you can use it by using the USB cable connected on J2 on the DK. But you can also connect the pins (6 and 8) directly to your RPi header if you have set it up to use this.&nbsp;</p> <p></p> <p>Best regards,</p> <p>Edvin</p><div style="clear:both;"></div>