https://devzone.nordicsemi.com/f/nordic-q-a/62064/uart-communication-echo-problemI want to make serial connection in between an nRF52833 and a LPC1752. When I use the UART in a firmware without using the SoftDevice for Mesh 4.0.1 , everything is working just fine. Communication is good between the two controllers. No echo fromen-USTelligent Community 13Tue, 02 Jun 2020 21:18:11 GMThttps://devzone.nordicsemi.com/thread/252851?ContentTypeID=1Tue, 02 Jun 2020 21:18:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:945c6ef5-42c6-4a61-a306-cd4dfa1e131fawneil<p>No worries.</p> <p><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/5140._5F00_Verify_2D00_answer_2D00_nordic_5F00_2.png" /></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/252840?ContentTypeID=1Tue, 02 Jun 2020 19:23:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6fdd4f80-c3a9-423a-a979-5f9e340d9d63MichelD<p>Oups.Found the problem on my FW.&nbsp; The one with a Mesh app. It was echoing each received chars.</p> <p>Sorry to bother with this.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/252796?ContentTypeID=1Tue, 02 Jun 2020 14:54:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5ac36809-0245-4e97-8523-140e30a4e3c6awneil<p>You need to look carefully at that firmware to see where it&#39;s doing the echo!</p> <p>Is it the&nbsp;<span>nRF52833 doing it locally, or is it something in the Mesh sending back an echo?</span></p><div style="clear:both;"></div>