Subject:
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Re: Polarity Switch
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 20 Feb 1999 08:48:18 GMT
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Original-From:
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I Am I <i_am_that_guy_forever@^ihatespam^yahoo.com>
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Viewed:
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1179 times
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Hey all:
Could you not use a switch like those on a stopwatch? You get to depress
the switch(bump into something, like a wall or a cat or your spouse or
sibling) and then the thing holds the motion in the other direction. my
little brother had one of these switches that he used to play with. it
had a large number of contacts, wire in/outs with the bulk of a roll of
USA pennies, only lighter. He loved it 'cause he could just push the
switch and one color would show with the word "Forward" on it and
another press would get the word "Backup" to show in the little view
window atop this (loose) switch. A stopwatch (a big one) might have a
switch you could use or you could just use a microswitch and a flipflop
inline with some diodes and transistors to simulate this "memory action"
(remembering what you did last and then doing the opposite at the next
signal).
-Zach B.
Russell Nelson wrote:
>
> Dave Forrest writes:
> > I was wondering if the Polarity Switch (Or some other lego piece) would provide
> > a mechanical way to switch the direction of a lego motor connected to the RCX.
>
> Yes, I'm sure that would work. The only thing is, though, that there
> might be a dead spot in the middle, so if you're depending on the
> motor to cause its own reversal, you might need to incorporation some
> mechanical hysteresis.
>
> > ALSO,,,, can you use the (5037) Electric Plates to provide a connection between
> > a motor and the RCX input port?
>
> AFAIK they will work to replace wires, but that application seems unproductive.
>
> --
> -russ nelson <rn-sig@crynwr.com> http://crynwr.com/~nelson
> Crynwr supports Open Source(tm) Software| PGPok | There is good evidence
> 521 Pleasant Valley Rd. | +1 315 268 1925 voice | that freedom is the
> Potsdam, NY 13676-3213 | +1 315 268 9201 FAX | cause of world peace.
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Re: Polarity Switch
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| Dave Forrest writes: > I was wondering if the Polarity Switch (Or some other lego piece) would provide > a mechanical way to switch the direction of a lego motor connected to the RCX. Yes, I'm sure that would work. The only thing is, though, that (...) (26 years ago, 19-Feb-99, to lugnet.robotics)
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