Can anyone give me tips on getting this setup? I have the NMEA library loaded, and it wants serial communication. I’m new, and learning, so maybe I’m asking a dumb question, but how would I wire it up?
TX line on GPS to RX line on uC. Power and GND. Aren’t there only 3 pins on those things? 
There are 4 pins , TX RX VCC AND GND.
Are you talking about the [GPS MiniMod or the [GPS Micro-Mini? :|](GPS Micro-Mini - GPS-08936 - SparkFun Electronics)](GPS MiniMod - GPS-08416 - SparkFun Electronics)
I’m sorry, Micro-Mini!
I can’t seem to find whether it can take a 5V TTL signal…
But if it can, it’s a simple job to hook up. VCC to your Arduino’s 5V and GND to Gnd, TX to RX and vice-versa… 
Anyone else with extra advice?
The datasheet for the module specifies 1.8V TTL logic levels. I imagine you are going to need a level shifter to get the levels to match for a 5V micro. If your micro can sense 1.8V as a logic high, you might be able to set it up as a receive only device without worrying about the levels.
Wire it as I mentioned before. But read the datasheet for your microcontroller to see if it can handle levels that low.
We couldn’t get it to work with hyperterminal until we inverted the signal and then brought it up to 5V. Dunno if that helps
ttabbal:
“The datasheet for the module specifies 1.8V TTL logic levels. I imagine you are going to need a level shifter to get the levels to match for a 5V micro. If your micro can sense 1.8V as a logic high, you might be able to set it up as a receive only device without worrying about the levels.”
In the schematic for the GPS Micro-Mini, it has a MOSFET on the TX line to do the level conversion to whatever voltage the module is running from…
Not too sure about the RX line tho… :?
For the Arduino users- I just got two to work alongside one another using an Ardweeny. The VCC pin acts as the Rx as well. In addition to what you have you should also get the NewSoftSerial library (http://arduiniana.org/libraries/newsoftserial/). In that is sample code that will work (TwoNSSTest.pde). The pins are connected as such:
GPS1: Tx - Digital 2, GND - GND, VCC - Digital 3
GPS2: Tx - Digital 4, GND - GND, VCC - Digital 4