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"Steve Barile" <sebarile@sstanamera.com> writes:
> I have controlled LEGO trains via the RCX many times. The question is how to
> control the speed of the train under a finer ganularity then just the native
> power levels.
>
> snip ...this comment has promise! Can you vary the width of the pulse?
> <The good news is that the RCX outputs are pulse-width modulated.>
Yes. When you set the power for an output port actually you select the
duty cycle of a square wave. The granularity depends on firwmare. With
standard firmware you can select between 7 power levels; legOS has 255
levels.
bye
Bernardo
New e-mail: dibbe@freestation.it
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Message is in Reply To:
 | | Re: RCX motor pulsing
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| I have controlled LEGO trains via the RCX many times. The question is how to control the speed of the train under a finer ganularity then just the native power levels. snip ...this comment has promise! Can you vary the width of the pulse? <The good (...) (24 years ago, 22-May-01, to lugnet.trains, lugnet.robotics)
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