sparkfun NEO-M8P-2 Hook-Up Manual page 3

USB
The micro-B connector makes it easy to connect the NEO-M8P to u-center for configuration and quick viewing of
NMEA sentences. It is also possible to connect a Raspberry Pi or other SBC over USB. The NEO-M8P
enumerates as a serial COM port and it is a seperate serial port from the UART interface. See Getting Started with
U-Center for more information about getting the USB port to be a serial COM port.
A 3.3V regulator is provided to regulate the 5V USB down to 3.3V the module requires. External 5V can be applied
or a direct feed of 3.3V can be provided. Note that if you're provide the board with 3.3V directly it should be a clean
supply with minimal noise (less than 50mV VPP ripple is ideal for precision locating).
2
I C (a.k.a DDC)