Subject:
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Re: Multiplexing Input Circuit
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 12 Nov 1998 16:37:53 GMT
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Original-From:
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Larry Coffin <lcoffin@point!StopSpam!infinity.com>
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Viewed:
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2503 times
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> The analog switch is bidirectional and I don't think there are any problems
> with signal polarity.
The setup I was using was bi-directional too, I'm not sure exactly
why I was seeing it, but I remember getting a high reading for a
non-pressed touch sensor when the next one over (the previous one in the
cycle?) was pressed. If I reversed the contact on the RCX or if I ran both
lines through the MUX it went away.
---Larry
+-----------------------------------------------------------------------+
Larry Coffin lcoffin@PointInfinity.com
Point Infinity http://www.PointInfinity.com
Nantucket, Massachusetts 508-325-6677 * fax: 325-6676
+-----------------------------------------------------------------------+
Micro Credo:
Never trust a computer bigger than you can lift.
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Message is in Reply To:
 | | Re: Multiplexing Input Circuit
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| (...) Looks good! How about using the third input port to assert the reset line and set the counter back to zero? Is your counter set up as a binary counter? From your diagram it looks like there are times that more than one sensor would be active (...) (26 years ago, 12-Nov-98, to lugnet.robotics)
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