As far as I know there is no ready-to-use Bluetooth implementation available in Godot. You can try to build it yourself with the PacketPeer class as stated in the High level multiplayer tutorial but I guess this would be a very hard task.
There is an external module called GodotBluetooth but I’m not sure if this is ready yet.
Thanks for the help
leonardo | 2018-02-08 04:25
I’ve pimped the code of the repos linked in the first answer.
It’s a forke of the repos and I’m using it for my Game BlueTooth Poker 8