The UUID is used for uniquely identifying information. It identifies a particular service provided by a Bluetooth device. The standard defines a basic BASE_UUID: 00000000-0000-1000-8000-00805F9B34FB .
Feasycom bluetooth module UUID are fixed some UUID ,so through the specific UUID can know the module it is provide by feasycom .The UUID is used for uniquely identifying information.
Sometimes customer may have customized UUID requirement ,they will specify some UUID :Bluetooth data channel ,serial data channel ,module parameter settings and so on .so the UUID is used for self-defined parameter and specific data channel .
For more details feel free to contact feasycom team :sales@feasycom.com