https://devzone.nordicsemi.com/f/nordic-q-a/78792/after-1-minute-35-seconds-the-bluetooth-connection-is-disconnectedI&#39;m working on a program using the ble_peripheral/ble_aapp_uart project. While testing the program, it was confirmed that the connection was disconnected after 1 minute 35 seconds by connecting it to the mobile phone. Please tell me how to send dataen-USTelligent Community 13Fri, 20 Aug 2021 07:26:04 GMThttps://devzone.nordicsemi.com/thread/325849?ContentTypeID=1Fri, 20 Aug 2021 07:26:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f6d409c2-dae0-4b1b-ba88-46f726a47509Karl Ylvisaker<p>Hello,</p> [quote user=""]While testing the program, it was confirmed that the connection was disconnected after 1 minute 35 seconds by connecting it to the mobile phone.[/quote] <p>Are you encountering an error on any side of the connection? What does the logger say when the disconnection occurs?<br />Does your peripheral device reset when the error occurs, or does it exhibit any other unexpected behavior?<br />The more information you are able to provide about what you observe, the easier this will be to debug.<br /><br />Please make sure to have DEBUG defined in your preprocessor defines, like shown in the included image:<br /><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/1682.enabling_5F00_debug_5F00_SES.PNG" />&nbsp;<br />This will make the logger output a detailed error message whenever a non-NRF_SUCCESS error code is passed to an APP_ERROR_CHECK.<br /><br />Best regards,<br />Karl</p><div style="clear:both;"></div>