Subject:
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Re: Moving Straight
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 28 Jun 1999 18:02:52 GMT
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Original-From:
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Nick Taylor <ntaylor@iname.com>
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Viewed:
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816 times
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Sean ...
Probably the best way to maintain a constant heading is to use shaft
encoders on both drive wheels ... monitor their rotation ... adjust
one motor to give identical turn counts.
The book "Mobile Robots: Inspiration to Implementation" by Jones,
Flynn, and Seiger provides a description of this method complete with
IC code examples. IMO this book is an absolute essential for anyone
using the HandyBoard ... at least until Fred Martin's book is finally
published.
Nick
Sean Verret wrote:
>
> Is there anyone who has written or seen IC code that will keep a robot
> moving straight with 2 DC motors and four side sensors? 2 on each
> side. The main reason I ask is because one of my DC motors seems to put
> out more power that the other one and this moves faster and my robot
> like to turn into walls....
>
> I'm using the analog sensor inputs with IR sensors - the values range
> from 0-255
> 255 being can't see anything, and 0 being right against a wall..
>
> I was thinking something like - if back left > 128 speed up left motor
> or decrease right motor speed and similar scenarios for the other
> sensors....
>
> I'm asking just to save myself some time.... If anyone can help that'd
> be greatly appreciated!!
>
> Cheers
> Sean Verret
> Design Services
> PMC-Sierra ext 2527
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Message is in Reply To:
 | | Moving Straight
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| Is there anyone who has written or seen IC code that will keep a robot moving straight with 2 DC motors and four side sensors? 2 on each side. The main reason I ask is because one of my DC motors seems to put out more power that the other one and (...) (25 years ago, 28-Jun-99, to lugnet.robotics.handyboard)
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