Subject:
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Re: RCX 2.0 -- ideas.
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 1 Jan 1999 01:30:24 GMT
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Reply-To:
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BRETT@SR.HP.avoidspamCOM
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Viewed:
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1235 times
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Jakob Nebeker wrote:
> 1. More connections. At least 4 outputs and 4 inputs.
At the risk of being argumentative, I'd submit that no matter how many
inputs/outputs they provide people will always want more. The trick is
to "expand" what's available to do what you want to do.
There are already various ideas and designs for running multiple sensors
on a single input port. Three touch per port seems VERY workable and
more is no doubt possible.
Outputs are more of a "limit", but that just means one needs more
creativity. I've got a robot about 2/3 built now as a prototype to
expand output control. I use one motor to drive a transmission which
will shift the other two motors between two different drive trains
(each). I've pretty well finished the mechanical design and
implementation, but still have all the coding to do (NQC). Of course if
you can do it with two drive trains, you can do it with N (which would
go a long way to solve the output limit).
Don't see the 3-input/output as a limit, see it as a challenge to create
a design that works within the limits.
--
Brett Carver
brett@sr.hp.com
(707) 577-4344
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Message has 2 Replies:
 | | Re: RCX 2.0 -- ideas.
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| I found a way to expand the inputs to a max of 64. This involves using a Analog MUX. Ports A & B are setup to sense the digital input line to the MUX. Each port is setup to look at four inputs for a total of eight inputs. The output of the MUX is (...) (25 years ago, 1-Jan-99, to lugnet.robotics)
| | | Re: RCX 2.0 -- ideas.
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| (...) Brett, I have been working on a couple different transmission designs with multiple gear ratios. I am most interested in knowing how you used a RCX motor to shift the motors into the two different drive trains. Does it require any sensors? Any (...) (25 years ago, 14-Jan-99, to lugnet.robotics)
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Message is in Reply To:
| | RCX 2.0 -- ideas.
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| Here are some things I would like to see changed for RCX 2. (if there is even one) 1. More connections. At least 4 outputs and 4 inputs. The way it is right now, a robot that drives around can't really do much else, given that there is only one (...) (25 years ago, 31-Dec-98, to lugnet.robotics)
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