Hi,
I just recieved a Arduino Duemilanove and i already love it.
Now i'm searching for a GPS module that is compatible with the Arduino.
I found a super cheap module: FOR LINK SEE NEXT REPLY
My question is my Arduino compatible with this module?
Dimby
What do you mean by compatible? The board you found has a 20-PIN I/O interface. There aren't that many I/O pins on the Duemilanove, so you'd need an I/O Expander in between.
Search arduino.cc for "GPS". Tons of information is already available.
"The board you found has a 20-PIN I/O interface"
of which, five are GND, three are no connects.
Leaving power (obviously), serial I/O (three pins, of which you probably need only one) plus others.
Stuff like protocol select could be nailed high or low, and the TMARK and 10kHz probably ignored.
So, pull NMEA select low, and connect up serial port configured 4800/8/1/n
I'd say for ten dollars, go for it!
Thx 
I'll buy it right away, another question is a 12 channel GPS module better than a 5 channel module?
more channels == more satellites == better fix.
I also have to buy an antenna with this module?
yes. I think it said MCX connector?
-j
please reply if you find a suitable mcx antenna. Id be interested in such a cheap gps module
id buy one right now if i could find a cheap antenna. report back if yall find anything
You need to find out if the GPS supplies power for an amplified antenna (probably). Need to know if that power is 3V or 5V. then any amplified antenna with compatible voltage and correct connector should do.
-j
"An active (with preamplifier) as well as a passive antenna can be used.
The power supply on pin 1 of the 20-pin connector is put on the center conductor of the MCX connector,
so you can use either 3.3, 5 or 12V active antenna."
and dear god their shipping is expensive. it cost more than the part to ship in texas.
i went ahead and placed an order, when i get it, ill report back on my findings
just got the package in. its late, but ill see what i can cobble up this night,
nice, i checked and i believe sparkfun has a suitable antenna so that takes out one problem. how much was shipping?
it was a little over 9 dollars (ouch!). im having some trouble wiring it up though. maybe im just mis-reading the datasheet but pin 3 and 17 are a dead short, 3 is battery backup and 17 is a ground, so something is wrong here.
http://images.weirdstuff.com/thumb/rockwellGPS.pdf
my understanding of the 20 pin connector is that the numbering goes like this
|2|4|6|8|10|12|14|16|18|20|
|1|3|5|7|09|11|13|15|17|19|
hmm... cant seem to get it to stream any data... have it hooked up according to this http://images.weirdstuff.com/thumb/rockwellGPS.pdf
minus the battery. anyone have any ideas?
i cant figure out this connector. im getting nowhere right now. can someone take a glance at the datasheet and explain how the pin numbering goes? or maybe i had it right and i broke it
any luck? they started selling these on ebay for 10$ with free shipping. Would be great if someone got one to work.