BLE - UUIDs of custom serviceshttps://devzone.nordicsemi.com/f/nordic-q-a/114675/ble---uuids-of-custom-servicesGreetings I am going through the BLE fundamentals course and I am doing exercise 1 of lesson 4, creating a custom service. From this exercise, creating the &quot;LBS&quot; service, a 128-BIT uuid is used. How is this actually determined? In the lesson &quot;Servicesen-USTelligent Community 13Wed, 11 Sep 2024 22:31:30 GMTRE: BLE - UUIDs of custom serviceshttps://devzone.nordicsemi.com/thread/502200?ContentTypeID=1Wed, 11 Sep 2024 22:31:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:411cd0dc-289b-4286-a9c3-e01db467f0d4nordicator_prim3<p>Custom UUIDs are arbitrary. So long as they don&#39;t share the base bluetooth UUID determined by SIG (the standard services) then it can be anything. The base UUID that you shouldn&#39;t use is <code>XXXXXXXX-0000-1000-8000-00805F9B34FB.</code></p><div style="clear:both;"></div>