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 Robotics / RCX / 1812
1811  |  1813
Subject: 
RCX and GPS systems
Newsgroups: 
lugnet.robotics.rcx
Date: 
Fri, 11 Oct 2002 15:11:38 GMT
Viewed: 
2687 times
  
For sometime I have thought that a GPS interfaced with the RCX would be the
answer to my navigational prayers.  I have not found any information on an
interface for the RCX (GPS-RCX or GPS-PC-RCX).  I realize that this is not a
trivial task with proprietary protocols being involved and all.  I did find
a nice bit on Garmin's site regarding their protocol etc.  The physical
layer seems to based on a version of RS-232 (positive voltage only).  Also,
data can be transmitted in ASCII at the data level.

Here are the links:

http://www.garmin.com/support/pdf/iop_spec.pdf

http://www.garmin.com/support/text_out.html

So has anyone tried working on this, or is it that difficult/expensive that
it may not be worth it? I myself do not have the know how to pull all this off.

JL



Message has 3 Replies:
  Re: RCX and GPS systems
 
A big question is if the positioning resolution you could achieve would be worth the cost or effort. The GPS hardware I've seen tell you where you are within a few yards. Unless you can get that down to a few inches what's the point? Plus you still (...) (22 years ago, 11-Oct-02, to lugnet.robotics.rcx)
  Re: RCX and GPS systems
 
(...) Also see the ACE-II from Trimble which could be powered and output directly to the normal sensor plugs; and can be run slow enough for it to nor be a problem to read. However... you are going to have issues with resolution and reception. (...) (22 years ago, 11-Oct-02, to lugnet.robotics.rcx)
  Re: RCX and GPS systems
 
(...) It might be possible to run an IR transmitter directly off it, IIRC John Barnes posted a circuit diagram for that a while ago (he might also sell these things). Then you only need the software, where you need to send/receive single characters, (...) (22 years ago, 11-Oct-02, to lugnet.robotics.rcx)

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