Subject:
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Re: Distance sensor for RCX based on Sharp GP2D12
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 2 May 2001 09:58:44 GMT
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Viewed:
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1034 times
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Hi Steve,
sounds good to me !
Try it and let us know, if it does work (why shouldn't it ?!?).
Sad, but I don't own 15 (not even 7) Sharps. :(
But, if changing the supply voltage (using a switch to chose between 5V from
regulator (for sharps) or direct access to RCX input (for lego), for each
chanel) should make it possible to use sharps and (active) lego sensors in a
mixed configuration.
Regards,
Rainer
In lugnet.robotics, Stephen Edwards <edwards@cs.vt.edu> writes:
> Steven Nickle (to Rainer Balzerowski) asked:
>
> > Do I need another 4066? Can't I just use the fourth one in the current • 4066?
>
> Instead of a 4017 switching a 4066, why not use a 4518 controlling a
> 4051 analog multiplexer? That would keep the IC count the same,
> but allow you to manage 7 GP2D12's using the original strategy (with
> one of the 8 channels being used to detect counter rollover). Since the
> 4518 has two counters, by adding one more 4051 you could manage up to
> 15 sensors (!) with one more IC. Needless to say, I haven't tried to
> build this ;-).
>
>
> -- Steve
>
> --
> Stephen Edwards 604 McBryde Hall Dept. of Computer Science
> e-mail : edwards@cs.vt.edu U.S. mail: Virginia Tech (VPI&SU)
> office phone: (540)-231-5723 Blacksburg, VA • 24061-0106
> ------------------------------------------------------------------------------
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Message is in Reply To:
 | | Re: Distance sensor for RCX based on Sharp GP2D12
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| Steven Nickle (to Rainer Balzerowski) asked: (...) Instead of a 4017 switching a 4066, why not use a 4518 controlling a 4051 analog multiplexer? That would keep the IC count the same, but allow you to manage 7 GP2D12's using the original strategy (...) (24 years ago, 1-May-01, to lugnet.robotics)
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