Datasheet

Direct Computer Wiring

GPS modules are great in that the moment you turn them on, they'll start spitting out data, and trying to get a 'fix'

(location verification). Like pretty much every GPS in existence, the Adafruit Ultimate GPS uses TTL serial output to

send data so the best way to first test the GPS is to wire it directly to the computer via the TTL serial to USB converter

on an Arduino. You can also use an FTDI Friend or other TTL adapter but for this demonstration we'll use a classic

Arduino.

First, load a 'blank' sketch into the Arduino:

This is will free up the converter so you can directly wire and bypass the Arduino chip. Once you've uploaded this

sketch, wire the GPS as follows. Your module may look slightly different, but as long as you are connecting to the right

pin names, they all work identically for this part

Leonardo Users: This tutorial step won't work with a Leonardo. Go on to the next step, "Arduino Wiring", but

refer back here for this discussion of the GPS data!

// this sketch will allow you to bypass the Atmega chip

// and connect the Ultimate GPS directly to the USB/Serial

// chip converter.

// Connect VIN to +5V

// Connect GND to Ground

// Connect GPS RX (data into GPS) to Digital 0

// Connect GPS TX (data out from GPS) to Digital 1

void setup() {}

void loop() {}