Datasheet

Open up the File®® Examples®® Adafruit_GPS®® leo_echo sketch and upload it to the Arduino.

Then open up the serial monitor. This sketch simply reads data from the software serial port (pins

7&8) and outputs that to the hardware serial port connected to USB.

You can configure the output you see by commenting/uncommenting lines in the setup()

procedure. For example, we can ask the GPS to send different sentences, and change how often it

sends data. 10 Hz (10 times a second) is the max speed, and is a lot of data. You may not be able

to output "all data" at that speed because the 9600 baud rate is not fast enough.

In general, we find that most projects only need the RMC and GGA NMEA's so you don't need

ALLDATA unless you have some need to know satellite locations.