mem:
Can you use the hardware serial (on pins 0 and 1) for the GPS?
How does one do this? I have this same GPS unit. If I connect it to the hardware serial and then just upload a blank sketch and start the serial monitor then I see the GPS messages being spit out. I tried a sketch which opens the hardware serial, reads the GPS and writes it to an SD (without starting the serial monitor) and it doesn't seem to write any data.
There must be a way to read the GPS through the hardware serial (and then do something with this data) but I haven't figured it out yet. Seems like if I open the serial port [ I.E. Serial.begin(57600); ] then it connects to the host computer. And of course if I don't open the serial port then I don't see how I can get GPS data.
Thanks.