It is correct to use same base UUID for application?

[igortomiatti]

If I develop a custom application where it will have several peripherals (with sensor function) and a central one.

Is it correct to use the same base UUID for all peripherals and central? Or regardless of application each device has to have its unique UUID?

What about the 16 bits of the service UUID, can I use the same for all peripherals?

I started studying BLE now and found nothing regarding best practices with UUID.

Best regards,

Igor.

[haakonsh]

The Service and Characteristic UUID are used to identify a Service or Characteristic. You should absolutely reuse them across your devices. 

BLE MAC addresses (6bytes) are used to identify a BLE device, and a Connection Handle is used to identify a BLE Link Connection (Link).