Subject:
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Re: Voyager... GPS guided autonomous outdoor LEGO robot
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 29 Apr 2008 15:15:36 GMT
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Viewed:
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6360 times
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"John Brost" <john.brost@gmail.com> wrote in message
news:K0384x.Lzu@lugnet.com...
> A while ago I watched as Steve Hassenplug started building and testing an
> outdoor GPS guided LEGO robot to compete in a RoboMagellan contest he
> called the
> Green Monster. It was great fun watching it drive outdoors. After some
> gentle
> prodding, I decided to give it a shot for myself. Voyager is the result.
> Here's the NXTLOG page about it:
>
> http://mindstorms.lego.com/nxtlog/ProjectDisplay.aspx?id=0084709f-625a-4816-aabb-98291610c18b
>
> I recently managed to rid it of its R/C leash and go fully autonomous
> using
> RobotC and a BT GPS receiver. Here's a video of it driving a course I
> defined
> with flags.
>
> http://www.youtube.com/watch?v=fhhpetNNnMw
>
> The GPS locations of the waypoints are defined prior to the run and
> recorded to
> a file. The navigation program then reads this file and navigates to the
> points
> using real-time GPS readings to adjust its course. It also uses an
> on-board
> HiTechnic compass sensor for navigation. Once Voyager gets within 50"
> (defined
> in the program) of the target waypoint, it automatically increments to the
> next
> waypoint in the sequence. After the last waypoint, it automatically
> returns
> home to the first waypoint. It can record & follow up to 20 waypoints
> including
> the starting waypoint.
>
> John
So does the GPS talk directly to the NXT?
What's the accuracy?
Great work and a nifty bot!!
-Rob
www.lifelites.com
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Message has 1 Reply:
 | | Re: Voyager... GPS guided autonomous outdoor LEGO robot
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| (...) Yes, the GPS communicated directly to the NXT via bluetooth. I can't remember who it was that figured out how to do this, after most of us thought it was impossible, but it does work. It's difficult to quantify the accuracy. I have it set that (...) (17 years ago, 29-Apr-08, to lugnet.robotics)
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Message is in Reply To:
| | Voyager... GPS guided autonomous outdoor LEGO robot
|
| A while ago I watched as Steve Hassenplug started building and testing an outdoor GPS guided LEGO robot to compete in a RoboMagellan contest he called the Green Monster. It was great fun watching it drive outdoors. After some gentle prodding, I (...) (17 years ago, 29-Apr-08, to lugnet.robotics)
|
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