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Jumpers
There are three jumpers on the underside of the product, each labeled with its function. The first in the top left of
2
the picture is a three way jumper labeled
that connects two pull-up resistors to the I C data lines. If you have
I²C
2
many devices on your I C data lines, then you may consider cutting these. To the right of that jumper at the very
edge of the board is the
jumper. If you cut this trace it will disconnect the Power LED on the topside of the
LED
board. Finally, at the lower left is the
jumper that when closed enables SPI communication. The board
SPI
2
defaults to I C and Serial so close that if you'd rather get your NMEA data over SPI.
U.FL Connector
The U.FL connector on the board is where you will plug in your antenna. This is a compact connector for RF
antennas, that has the same function as the traditional SMA connector. You may be more familiar and even own
some antennas that use SMA connectors; never fear, we carry a U.FL to SMA cable adapter. Check out our
tutorial on using U.FL connectors, if this be your first.
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