Subject:
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Power Functions train controller
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Newsgroups:
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lugnet.trains, lugnet.technic
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Date:
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Wed, 20 May 2009 16:09:29 GMT
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Viewed:
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13319 times
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I've been reading the Power Functions protocol specification. I'm thinking that
the train controller is using:
Single Output Mode
Mode = Clear/Set/Toggle
0100 Increment PWM
and
0101 Decrement PWM
when you spin a knob. Possibly
Single Output Mode
Mode = Clear/Set/Toggle
0000 Clear C1 + Clear C2
when you hit the red STOP button.
The description of "PWM forward step 1" isn't clear to me. Does that essentially
mean "PWM forward speed 1"? If so, is there any possibility of Lego producing a
train controller that uses that type of control? I really don't like the way the
current train controller works - I much prefer an absolute control scheme, rather
than the current relative control one. Also, sometimes when I am slowly stopping
the train (Emerald Night), I end up accidentally having it back up a bit, which
is annoying. I think I remember reading here that the old RC train controller
doesn't work with the PF stuff. Is that correct - I haven't tried?
Can anyone confirm my guesses, and answer my questions?
I'll throw this bit of info out: the train controller works fine with the Technic
Bulldozer, but I find its easier to just use the smaller non-train controller. And
no, I haven't tried a pull-off between the Emerald Night and the bulldozer. :-)
-Chris Gray
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