GPS Receivers?
Dan Taylor
Posts: 207
Hi All,
··· Was just looking at the GPS Receiver Module and the PMB-248 GPS Receiver. What is the main difference? Why the $40 price difference? They look very similar to me.
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Dan Taylor
··· Was just looking at the GPS Receiver Module and the PMB-248 GPS Receiver. What is the main difference? Why the $40 price difference? They look very similar to me.
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Dan Taylor
Comments
The GPS Receiver Module is more expensive because includes all supporting circuitry to allow for quick and easy interfacing with any of our microcontrollers (as well as source code and documentation).
The PMB-248 is just the raw GPS Receiver from the GPS Receiver module, allowing the user more freedom of design (i.e. choose to communicate through RS232 or TTL). But the user will have to do some more design work and coding before interfacing with a microcontroller, thus the $40 price difference.
Hope this helps!
Jessica
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Jessica Uelmen
Education Department
Parallax, Inc.
Post Edited (Jessica Uelmen (Parallax)) : 5/14/2009 3:41:44 PM GMT
One more note to add to Jessica' statement. The Parallax GPS 28146 has a really handy "Smart Mode" in which you send a request and receive a reply with only the data you wanted. This is so much easier to use with a BS2 as it won't chew up your RAM and it will save you the parsing issues. If you're using GPS with the BASIC Stamp I'd certainly go with 28146. Others may disagree, or point out that it'll work better with the BS2p's memory, but the whole coding process is simplified with Smart Mode.
Ken Gracey
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Dan Taylor
http://forums.parallax.com/showthread.php?p=807139
I also included a program I wrote in VB.Net for saving incomming data and displaying on Google Earth as a path!
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Dan Taylor