Specifications

8
RAK2287
8
49 RESERVED HOST _MOSI I/O Host SPI MOSI
50 GND GND Ground
51 RESERVED HOST _CSN I/O Host SPI CS
52 3.3Vaux 3V3 PI 3.3V DC supply
Table 4 | Pin Definitions
2.5
Power Supply
RAK2287 card must be supplied through the 3.3Vaux pins by a DC power supply and
the voltage must be stable.
2.6
SPI Interface
SPI interface is provided on the Host_SCK, Host _MISO, Host _MOSI, Host _CSN pins
of the system connector. The SPI interface gives access to the configuration register of
SX1302 via a synchronous full-duplex protocol. Only the slave side is implemented.
2.7 USB Interface
RAK2287 card can support the high speed USB to SPI by STM32L412Kx, it includes a
USB 2.0 compliant interface with maximum 480 Mb/s data rate, representing the
interface for any communication with an external host application processor. The
module itself acts as a USB device and can be connected to any USB host equipped
with compatible drivers.
Note: RAK2287-SPI version don't have this interface.
2.8
UART and I2C interface
RAK2287 integrates ZOE-M8Q GPS module which has UART and I2C interface. The
PINs on golden finger provide an UART connection and an I2C connection, which
allows direct access to the GPS module. The PPS signal is not only connected to
SX1302 internally, but also connected to golden finger which can be used by host
board.