Subject:
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Re: 8879 no more?
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Newsgroups:
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lugnet.trains
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Date:
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Wed, 3 Jun 2009 22:59:59 GMT
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Viewed:
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19232 times
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In lugnet.trains, Jordan Schwarz wrote:
>
> Steve Witt of LEGO was able to get me a quick reply regarding the 8879
> controller.
>
> "There was a production problem with that one and it will be released later this
> summer. there was just a bump in the road on getting it out on time :-)
>
> But yes it will be coming out."
>
> -Jordan
Hi Jordan,
Thanks, that's good to know. At least it will be coming back reasonably soon.
Presumably the collection will come back along with it.
> > What it did have was, the
> > 8885 remote controller, which in fact gives absolute throttle command, but it's
> > still line-of-sight (LOS), and continuous application (you have to push it 'on'
> > all the time). I think I'd like the incremental better, especially if I could
> > pretty much set it and forget it. I guess I'll never know now.
> >
> > Have Fun!
> > C-Ya!
> >
> > Rich
Rich,
But, is the 8885 proportional? I thought it was just on/off. I have a couple
so I guess I should go test :)
The issue with incremental commands is that if the receiver misses one,
everthing is now offset. IR is too unreliable for any protocol that requires
100% reception. With absolute throttle, the control unit can send redundant
commands and there is no harm in extra ones and only delayed response from
missing ones. I find it completely unfathomable that an engineer could walk
into a design review with an incremental IR-based protocol and exit the room
again with his hide still on his body.... but I'm old school that way :)
The specs are all out there and have been for a long time. Maybe it's time to
crank out a homebrew throttle. I'm pretty sure the receiver supports absolute
throttle commands. If not, my rant will look pretty silly... I guess I should
go re-read the spec before launching any more flames :)
-dave
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Message has 1 Reply:
 | | Re: 8879 no more?
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| (...) I'd say it's no biggie since you can just keep turning the orange knob until you're happy with the speed. A bigger problem would be that the 8879 I had a chance to play with a while back (I'm still waiting for mine, ordered within 12 hours of (...) (15 years ago, 23-Jun-09, to lugnet.trains)
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Message is in Reply To:
| | Re: 8879 no more?
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| (...) Steve Witt of LEGO was able to get me a quick reply regarding the 8879 controller. "There was a production problem with that one and it will be released later this summer. there was just a bump in the road on getting it out on time :-) But yes (...) (15 years ago, 3-Jun-09, to lugnet.trains)
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