https://devzone.nordicsemi.com/f/nordic-q-a/91630/uart-communication-between-nrf5340-and-esp32Hi, I am trying to send the data received over BLE from nrf5340 to ESP32 and then from ESP32 to nrf5340 using UART communication using below configuration. nRF5340 esp32 P1.08 pin Rx-----&gt; Tx 17pin P1.09 pin Tx ------&gt; Rx 16pin I have trieden-USTelligent Community 13Thu, 08 Sep 2022 05:54:18 GMThttps://devzone.nordicsemi.com/thread/385153?ContentTypeID=1Thu, 08 Sep 2022 05:54:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:10d48353-d8c6-4a57-8823-6bd8796af31eShuMan<p>Hi,</p> <p>By referring to the <a href="https://academy.nordicsemi.com/topic/exercise-1-5/">uart_example</a>, I am now able to establish the communication.</p> <p>Thanks</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/384519?ContentTypeID=1Mon, 05 Sep 2022 09:14:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ff724474-1f0c-4b0a-96ce-652d42823749Simon<p>Hello,</p> <ol> <li>Could you attach a logic analyzer and check if you see any activity on the lines?</li> <li>Do the chips have common ground?</li> <li>Do you use the same baud rate on the esp32 and the nRF5340?</li> </ol> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>