Subject:
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Re: Lego/RCX IRPD
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 17 May 2001 18:26:43 GMT
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Viewed:
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734 times
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Hi John,
Yes, I've got practical experiences with these sharp devices.
I've got three of them (GP2D12) and attached them to a little 6wheeled robot.
They are "looking" forward. One straight forward, one 45° left, one 45° right.
I can avoid obstacles and follow walls with them. The sharps have a range of 10
cm to 80cm. I get values from 10 to 80 responding to the distance.
(The voltage sadly is not linear proportional to the distance, but you don't
have to care about not being linear.)
As mentioned i've got three of them. I'm using the sharps on a single input
using the amplifier and mux circuit designed by Michael Gasperi. (See
http://www.informatik.fh-hamburg.de/~lego/Projekte/projekte_englisch.html
for more information if interested)
I'm polling these sharps in a seperate task and store the values in global
variables. Thus I've got reliable values every some 10 ms.
Regards
Rainer
In lugnet.robotics, John Barnes writes:
> Does anyone have any practical experience using devices like the
> Sharp IRPD with the RCX?
>
> What do you use it for? What sort of range does your application
> require? What sort of measurement rate is necessary?
>
> If you haven't tried one of these things yet,
>
> What would you use it for? What sort of range will your application
> require? What sort of measurement rate do you need?
>
> Thanks,
>
> John Barnes
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Message is in Reply To:
 | | Lego/RCX IRPD
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| Does anyone have any practical experience using devices like the Sharp IRPD with the RCX? What do you use it for? What sort of range does your application require? What sort of measurement rate is necessary? If you haven't tried one of these things (...) (24 years ago, 17-May-01, to lugnet.robotics)
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