Currently we have two options for using the inAir Wirelesss LoRa modules with Arduino boards. Both options only work with 3.3V Arduino board.
The SHD3I is a daughter board with Arduino connectors, for a 3.3V arduino board. For example, can be used with very cheap mbed boards, like KL25Z. Or, with a 3.3V Arduino board, like Arduino Zero, or compatible board.