https://devzone.nordicsemi.com/f/nordic-q-a/84876/custom-version-string-in-a-ble-uart-peripheralI have an application based on the peripheral uart sample, using NCS 1.8.0. I need to build in a version string that is queryable, so that anyone who connects to the device over Bluetooth can verify what version of custom software is running on the deviceen-USTelligent Community 13Fri, 18 Feb 2022 11:55:36 GMThttps://devzone.nordicsemi.com/thread/353829?ContentTypeID=1Fri, 18 Feb 2022 11:55:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6563a904-bbc9-4742-abaf-6598ed48a65bHung Bui<p>Hi Brendan,&nbsp;</p> <p>As far as I know there isn&#39;t a dedicated Bluetooth SIG&#39;s characteristic for version number of the firmware.&nbsp;<br />So you may need to create your own proprietary service &amp; characteristic for that purpose.&nbsp;</p> <p>Another option is to add the version number into your Device Name characteristic (0x2A00) inside Gap Service (0x1800). This way you don&#39;t need to define your own characteristic. But usually Device name should be represent in ASCII format, you can&#39;t use it as binary.&nbsp;</p> <p>You can set name using&nbsp;<span>bt_set_name().&nbsp;</span></p><div style="clear:both;"></div>