Low Power Bluetooth Module. Lorawan1.02 class a/c and b. Web following the line of the other modules, it also implements the 802.11b/g/n standards and security protocols.
It comes with an spio interface to interact with it, and it also provides. The +5v pin is the power pin and the gnd is the power reference, which must be the same as the arduino. This innovative module design is based on the extremely low power atmosic.