Subject:
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Re: What about multiplexing sensors?
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 11 Nov 1998 19:02:03 GMT
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Viewed:
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2626 times
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You can:
1. Put multiple Touch sensors on the same input but you can't tell which
one was hit.
2. Put a Light and Touch sensor on the same input and read normal light
levels except when the Touch is hit it the input will read 100.
3. There are a variety of ways to convert multiple Touch sensors into
analog and read the values, but you have to decode it in the RCX.
4. Some have proposed using a motor output to switch sensors, but its not
like you have extra motor outputs to waste doing this.
5. I think the better approach is to build smart sensors that process
multiple sensors down to a value that can be input to the existing port.
Tracking for example; the value from the sensor would be just how far
left or right something is.
See: http://ourworld.compuserve.com/homepages/Michael_Gasperi/lego.htm
Stephen Waits wrote:
> Has anyone attempted to mux the three sensor connections to expand the
> RCX's sensor capability? Think this is possible?
>
> I don't have an RCX of my own [yet] nor the EE capacity to pull this
> off, so I'm counting on the geniuses out there!
>
> --Steve
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Message has 1 Reply:
 | | Sensor inputs (more than three)
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| Has anyone noticed that each sensor input block has four connectors? If you connect one sensor to two connectors and another sensor to the other two, you essentially read both sensors simultaneously. If this could be munipulated somehow then you (...) (26 years ago, 11-Nov-98, to lugnet.robotics)
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Message is in Reply To:
| | What about multiplexing sensors?
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| Has anyone attempted to mux the three sensor connections to expand the RCX's sensor capability? Think this is possible? I don't have an RCX of my own [yet] nor the EE capacity to pull this off, so I'm counting on the geniuses out there! --Steve (26 years ago, 11-Nov-98, to lugnet.robotics)
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