https://devzone.nordicsemi.com/f/nordic-q-a/111258/nrf9161-nrf52840-lp_uart-communicationHello I have a problem setting up communication between a nRF9161 and a nRF52840. I have a custom board with a nRf9161 and a nRF52840. These two are connected with 5 lines. nRF9161 ------ nRF52840 P0.21 --- P0.29 P0.23en-USTelligent Community 13Tue, 21 May 2024 13:38:15 GMThttps://devzone.nordicsemi.com/thread/485151?ContentTypeID=1Tue, 21 May 2024 13:38:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:32c55657-d8c5-4e02-8a09-d857fd0cf3ffEinar Thorsrud<p>Hi,</p> <p>I am glad to hear you got it working. LP UART use signals to indicate that there is data ready to be sent, so that the receiver can wake up on it (using pin interrupt), in order to achieve low power. Could there be a problem with the pins or traces you use for the LP UART signals?</p> <p>If current consumption is not an imporatnt factor for your device, LP UART will not give you eny benefints compared to using only normal UART.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/485126?ContentTypeID=1Tue, 21 May 2024 12:48:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a58e2515-56aa-4894-8326-98e9934b6e2eGuillaume59<p>Actually my problem was resolved by using uart instead of lp_uart.</p> <p>However, I still don&#39;t know why it wasn&#39;t working with lp_uart.</p><div style="clear:both;"></div>