Subject:
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Re: Avoiding objects
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 11 Dec 2003 19:57:05 GMT
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Viewed:
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868 times
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In lugnet.robotics, "Roger Waters" <rogerwaters@fastmail.fm> wrote:
> Hello All,
>
> I'm new to the world of Mindstorms and to this list, and I have a
> question.
>
> Upgrading the Roverbot, which backs up when the bumpers feel something,
> is there a way of avoiding walls and objects on the floor. What is the
> best way to do this? How good is IR? Are there any other sensors out
> there (made by Lego or others) that would allow the robot to detect an
> obstacle before it actually hits it?
I haven't dabbled with Mindstorms for a while, but I had pretty good luck using
the IR on the RCX in combination with a light sensor. Basically, have the RCX
continously send out an IR message. The light sensor can detect the IR light
when it bounces off from an object, such as a wall. The only place I've had
trouble with this setup was if the `bot approached a very thin object, or an
object that was non-reflective (my black shoes for instance).
I've also tried using two light sensors to enable the `bot to tell what
direction the reflection is coming from, but I haven't had much success there.
-Elroy
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Message is in Reply To:
![](/news/x.gif) | | Avoiding objects
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| Hello All, I'm new to the world of Mindstorms and to this list, and I have a question. Upgrading the Roverbot, which backs up when the bumpers feel something, is there a way of avoiding walls and objects on the floor. What is the best way to do (...) (21 years ago, 11-Dec-03, to lugnet.robotics)
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4 Messages in This Thread: ![Avoiding objects -lego-robotics@crynwr.com (Roger Waters) (11-Dec-03 to lugnet.robotics)](/news/x.gif) ![](/news/246.gif) ![Re: Avoiding objects -Steve Hassenplug (11-Dec-03 to lugnet.robotics)](/news/x.gif)
![](/news/x.gif) ![](/news/268.gif) ![You are here](/news/here.gif)
![](/news/x.gif) ![](/news/68.gif) ![Re: Avoiding objects -Dirk Schlei (12-Dec-03 to lugnet.robotics)](/news/x.gif)
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