SparkFun MicroMod GNSS Carrier Board allows for adding GNSS Real Time Kinematics (RTK) for accuracy to millimeters. The device has the flexibility of the MicroMod’s M.2 connector to test and swap different MicroMod processor boards. The board allows for solderless access to the ZED-F9P module’s features via UART1, UART2, SPI, and I2C ports.