Subject:
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Re: RCX and train motors...
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Fri, 14 Oct 2005 15:47:34 GMT
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Viewed:
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1276 times
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David Koudys wrote:
> In lugnet.org.ca.rtltoronto, Brian Davis wrote:
>
> <snip>
>
> > Well, for the GBC trains at BrickFest neither Steve nor I did anything with
> > LDCC (we talked about it, but found we could do without). I used NQC, and Steve
> > used BrickOS, and both of us had reasonably could speed and positioning control.
> > What are you trying to do?
>
>
> I think there are a few variables--I saw the videos of the GBC--that's what
> inspired me, btw--and it's a pretty big loop--therefore more resistance in the
> rails.
>
> I'm running a pretty small loop with a prety small train.
>
> Actually, you can see the loop here--
>
> http://sparky.i989.net/blog/00000281.php
>
> It's that upper portion--the issue is, the train has to go around and back up
> into the sidings. Hard to control on such a small section of track--it's too
> fast when it hits the touch sensor at the ends of the sidings.
>
> I was going to go with the light sensors, as I think the GBC does--that works
> well on the loop 'cause the train shoots past the light sensor on the loop, then
> backs up.
>
> The problem wit hthe siding is that I don't have alotta room for 'slowdown'
> room, though that is the direction I'm heading in.
>
> That also means I'll need 4 light sensors just for the upper loop.
>
> I'm going to do more this weekend nad I'll keep y'all apprised.
>
> If it doesn't work, then it's LDCC IR'ed to an NQC'd RCX
>
> Dave K
have you tried making your own PWM speed setting in NQC?
5 X = ?? Y = ??
10 ? CLR
20 motor A ON
30 wait x
40 motor A OFF
50 wait Y
60 goto 20
Man I wish NQC was that easy.
either way you get the idea. you can PWM the RCX yourself and control
both the ON and OFF times to change the "speed"
Chris
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Message has 2 Replies:
 | | Re: RCX and train motors...
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| (...) Cool to know. (...) Then you need another bank of sensors, perhaps, to tell you when a train is coming "near" the siding, for instance. Cruise speed until near a siding, then slow speed to approach siding, and finally "creeping" speed to (...) (19 years ago, 14-Oct-05, to lugnet.org.ca.rtltoronto)
| | | Re: RCX and train motors...
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| In lugnet.org.ca.rtltoronto, Chris Magno wrote: <snip> (...) See, this is why I like Chris--we both think along the same lines... I did try this, with various delays on power on and power off--eitehr the train is too jumpy, doesn't move, or still (...) (19 years ago, 14-Oct-05, to lugnet.org.ca.rtltoronto)
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Message is in Reply To:
| | Re: RCX and train motors...
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| In lugnet.org.ca.rtltoronto, Brian Davis wrote: <snip> (...) I think there are a few variables--I saw the videos of the GBC--that's what inspired me, btw--and it's a pretty big loop--therefore more resistance in the rails. I'm running a pretty small (...) (19 years ago, 14-Oct-05, to lugnet.org.ca.rtltoronto)
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