ios5 - Corebluetooth, How to get a unique UUID?

Question

my question is the UUID of CBPeripheral seems not to be unique.

I have two iPad2, and a bluetooth4.0 device.

The UUID of the bluetooth device differs from the two iPad.

As shown in following images.

Is there any way to find a unique UUID of bluetooth device on iOS device?

I need to find a UUID or mac address that would not change between different devices.

Thank you very much, please help me!!

Answer 1

I was looking for a way to deploy platform-independent, static configurations of BLE devices. I was getting discouraged (Apple's UUIDs are +/- meaningless, and the MAC/BDADDR which can be obtained on most/all other platforms is not accessible from CoreBluetooth). Fortunately, I noticed that the "Device Information Service" profile (0x180A) contains a "System ID" attribute (0x2A23) which encodes the device's unique MAC/BDADDR address. I don't know if it is mandatory for a BLE device to expose this service, however.