Subject:
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Re: Why do it? Was: multi-device output controller
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 26 Mar 1999 23:28:54 GMT
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Viewed:
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1177 times
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My original message described the controller with two inputs, one for device
selection and one for device power. This could easily be connected to whatever
power source the user desires.
Joel Shafer wrote:
> I think that the solution should also be flexible enough to allow the power
> to be plugged into either an RCX output port or a battery pack. That way
> if you didn't want to lug around another battery pack, or if you didn't
> want to use up another individual output port, no problem, just switch the
> plug to the appropriate device.
>
> At 11:05 PM 3/26/99 +0000, you wrote:
> > Ralph, Thanks for reigning in the rabbit chase!
> >
> > As the originator of this thread I'd like to respond to the 'why'...
> >
> > I keep running out of ports on my creations. I see 5 or 6 as a practical
> > limit. My criteria for a
> > solution:
> >
> > 1. Entirely compliant with RCX firmware.
> > 2. Clean programmability. My initial idea: control is accomplished by
> > setting the power level of a
> > port to select which device, and by setting the second port for actual
> > device performance (on/off,
> > fwd/rev, pwr level). This means it would be usable by the RIS software.
> > 3. Reasonable cost (In my mind this means < $50).
> > 4. Leave at least 1 port for normal, direct RCX control.
> >
> > The directions this thread has taken are not attaining this goal. Instead
> > of blue-sky ideas about the
> > theoretical possibilities I'd like to see possibilities/critisisms towards
> > an attainable project. Am I
> > way off base on the ability to create a simple circuit that measures various
> > PWM to enable a set of
> > ports? If this is am expensive undertaking then say so now so more time
> > isn't wasted on this topic.
> >
> > If someone has a simpler idea for attainment of more than 3 outputs then I
> > am all ears.
> >
> > -Wes
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Message is in Reply To:
 | | Re: Why do it? Was: multi-device output controller
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| I think that the solution should also be flexible enough to allow the power to be plugged into either an RCX output port or a battery pack. That way if you didn't want to lug around another battery pack, or if you didn't want to use up another (...) (26 years ago, 26-Mar-99, to lugnet.robotics)
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