Subject:
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RE: Scout touch sensors
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 3 Mar 2000 18:03:08 GMT
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Original-From:
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Tilman Sporkert <tilman@activesw.com&Spamcake&>
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Viewed:
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623 times
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The resistor can only be read while the sensor is not pressed. It is in parallel
to the contacts. The Cybermaster sensors are transluscent, so you can actually
see it without opening it. Once you press the sensor, you got a closed contact
like from any other touch sensor, and the resistor doesn't matter. So you can't
use these touch sensor in parallel and still know which one was pressed. For
that you'd need resistors in series with the contact.
It's used in the Cybermaster so that you can build your model without worrying
much about wiring. The instructions show you which color sensor to use in your
model. The software reads the resistor values on startup, and dynamically maps
each colored sensor to a port. So even if you got the wires swapped between two
sensors, the robot will still work as programmed.
Tilman
> If the resistor values are high and different enough, it should still be
> possible to see if the one or the other is pushed. I think Erik Brok had/has a
> table of the values on his pages (no URL available).
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Message is in Reply To:
 | | Re: Scout touch sensors
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| Mike Burger skrev i meddelandet ... (...) I think these are the same sensors as in the Cybermaster. There is already a parallell resistor in each of the colored ones, so you can read which one is connected where. The 'regular' is not in Cybermaster, (...) (24 years ago, 3-Mar-00, to lugnet.robotics)
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