Datasheet
Breakout and Proto-area
Since the GPS module is so small, we had tons of space left over, we turned that into a proto area.
Feel free to put any circuitry you'd like into the 0.1" spaced holes. None of the holes are connected.
There's also a few breakouts near the SoftSerial/Direct switch. For example, the PPS pin which
provides pulse-per-second output when the GPS has a fix.
3V - this is the output from the onboard 3V regulator, it provides ~100mA if you need another
3V supply
CD - this is the card-detect output from the microSD socket, it is shorted to ground when a
card is not inserted. You'll want to have a pullup if you plan to use this pin to detect if a card
is inserted
CCS - this is another breakout for the Card Chip Select line. By default its connected to digital
10 but if you want to change it you can cut the trace from here to #10 and then solder in a
new wire
PPS - pulse-per-second output when the GPS has a fix
TX and RX - extra 'copies' of the GPS RX/TX pins - the RX pin is 5V friendly.
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