As shipped, the RF430CL330HTB hardware is configured for I2C mode (CS pin = 0, pull up resistors on SDA/SCL) with address 0x28(E0, E1, E2 = 0). The board must be connected to a host controller in order to set up the NDEF message and properly set registers. In this document, communication with the MSPEXP430FR5739 experimenter’s board is discussed, but the connections will be the same when different host controllers are implemented.