Change the puck UUID?

All of the iBeacons I use for the application I'm developing have the same UUID for ease of location and then use the Major and Minor.

So they're iBeacons?

I don't think normal Bluetooth LE has the concept of a UUID for a Puck (@Adam79 I think that's a UUID that the connecting computer has created - the Puck doesn't broadcast that)

iBeacons broadcast their own UUIDs - see this forum post - I think it'll tell you all you need about how to set Puck.js up as an iBeacon with its own UUID: http://forum.espruino.com/conversations/298200/