Subject:
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Re: Sharp GP2D05 Infrared Ranger and the RCX
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Tue, 3 Oct 2000 15:53:12 GMT
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Viewed:
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1739 times
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Ooh,
you're right. This seems to be too much for battery powered models. Has
anybody a better idea? I want to have a sensor with gives a linear (?)
signal corresponding to a distance.
For an 1-bit boolean signal I saw a plan in elektor 9/2000 (german issue)
page 40 with a Sharp IS471F and an ir diode. The same layout was in elector
5/2000 (english issue) page 50.
But you must preset the wanted distance by turning a potentiometer. You get
a signal 1 if the wall is nearer than the preset or 0 if it is not.
Ralf
am 2000-10-03 17:14 schrieb Ralph Hempel unter rhempel@bmts.com:
> > Hi,
> >
> > this seems to be a very good idea for a new RCX sensor. Reading the Sharp
> > data sheets for their infrared distance sensors I want to write some facts
> > about.
> >
> > They have 4 different sensors for measuring distances from 10 to 80 cm. The
> > differences are in the data output of the units. The links are the data
> > sheets you can read yourself from Sharp.
>
> Ralf,
>
> If I remember correctly, these sensors draw about 30 mA, which is the limit
> for a powered sensor for the RCX. You may need to add an additional battery
> to supply the current....
>
> Cheers,
>
> Ralph Hempel - P.Eng
>
> --------------------------------------------------------------------
> Check out pbFORTH for LEGO Mindstorms at:
> <http://www.hempeldesigngroup.com/lego/pbForth>
>
> Buy "Extreme Mindstorms: an Advanced Guide to Lego Mindstorms"
> <http://www.amazon.com/exec/obidos/ASIN/1893115844/hempeldesigngrou>
> --------------------------------------------------------------------
> Reply to: rhempel at bmts dot com
> -------------------------------------------------------------------- >
>
>
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Message is in Reply To:
 | | RE: Sharp GP2D05 Infrared Ranger and the RCX
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| (...) Ralf, If I remember correctly, these sensors draw about 30 mA, which is the limit for a powered sensor for the RCX. You may need to add an additional battery to supply the current.... Cheers, Ralph Hempel - P.Eng ---...--- Check out pbFORTH (...) (24 years ago, 3-Oct-00, to lugnet.robotics.rcx)
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