BLE Characteristic UUID issue for BatteryLevel

[matt_conroy]

@didier.coymanohatdl If the documentation only gives four characters for the value, they are assuming you’ll use the default characterstic UUID.

It is discussed more in this previous topic.

Trying to connect Bluetooth BP cuff, but struggling with the "characteristic UUID" stuff

This is the default or base UUID for all characteristic IDs if not set by the factory. The default is 00000000-0000-1000-8000-00805F9B34FB If the manufacturer is giving you only 4 digit then it is assumed that you need to use the default UUID. It starts with 8 hexadecimal digits and you need to add your 4 digit hexadecimal number as the second part of it. So instead of all zeros it would be 0000 plus your code FFF4