nrf9160DK : UART Communication between nrf9160 and nrf52840https://devzone.nordicsemi.com/f/nordic-q-a/80207/nrf9160dk-uart-communication-between-nrf9160-and-nrf52840Goal: Using NRF9160DK board, communicate nrf9160 and nrf52840 over UART I tried to use UARTE on both sides. Below is project configuration and overlay file for both boards. NRF9160: NRF52840: Please find attached the code for bothen-USTelligent Community 13Mon, 04 Oct 2021 12:32:45 GMTRE: nrf9160DK : UART Communication between nrf9160 and nrf52840https://devzone.nordicsemi.com/thread/332349?ContentTypeID=1Mon, 04 Oct 2021 12:32:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9a445de0-c6ac-404c-b423-acf96e7209d1&#216;yvind<p>Hello,&nbsp;</p> <p>Please be aware of tampering with the nRF9160DK Board Controller (nRF52840) will result in loss of function. Please see <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.7.0/zephyr/boards/arm/nrf9160dk_nrf52840/doc/index.html#board-controller-firmware">Board Controller Firmware under Working with nRF9160 DK</a>. Also, please see the <a href="https://infocenter.nordicsemi.com/topic/ug_nrf91_dk/UG/nrf91_DK/mcu_virtual_com_port.html">nRF9160 DK User Guide regarding virtual COM port pin routing on the nRF9160DK</a><br /><br />Have you looked at the <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/peripheral/lpuart/README.html#low-power-uart">Low Power UART sample</a> using the <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/drivers/uart_nrf_sw_lpuart.html#low-power-uart-driver">Low Power UART driver</a>, or the <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.7.0/nrf/applications/connectivity_bridge/README.html">Connectivity Bridge application</a>? There is also <a href="https://github.com/Rallare/fw-nrfconnect-nrf/tree/nrf9160_samples/samples/nrf9160/uart">an outdated sample found here</a>&nbsp;which should show the basic functionality. Please see the Zephyr project&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.7.0/zephyr/reference/peripherals/uart.html#uart">UART API</a>&nbsp;as well.&nbsp;<br /><br />Kind regards,<br />Øyvind</p><div style="clear:both;"></div>