Subject:
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Re: More outputs, thinking outside of the box...
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 12 Mar 1999 03:39:14 GMT
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Original-From:
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OneTimeCRX <hchea@ramapo&antispam&.edu>
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Viewed:
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1280 times
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To get more electrical about it, how about making a voltage gate for the
third output, that according to what voltage you set the third output to
(between 1 to 9 volts), it switches on different sets of motors? Also,
polarity changes could trigger more sets of motors, so that there would
be a total of 20 outputs from the two original outputs (from -9 to 9
volts in the third output controlling where the other two outputs go).
Of course only two motors could be on at a time, but at least it won't
be too bulky to make, and there won't be significant power loss (in
theory). To illustrate, let's say that we set the third output to 0
volts. This will allow the current from the two other outputs to a pair
of motors (and they will get full forward/reverse freedom of motion).
Then, later on set the third output to 1 volt. This will trigger the
voltage gate/relay to allow the current from the other two outputs go to
a different set of motors. This can be done for values of the third
output being: -9, -8, -7, -6, ..., 0, 1, 2, ... , 9. Hmm, maybe I'll
try it.
--
Cheers,
Henry C.
***********************************************************
* TAS: Physics 89 CR-X dx ES *
* Email: hchea@ramapo.edu OR OneTimeCRX@aol.com *
* TLS#28 *
***********************************************************
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Re: More outputs, thinking outside of the box...
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| (...) Often you don't need continuous motion, eg. robot arm, and you can keep to a limit. If you use another bump switch to tell the RCX that the motor shouldn't turn any more you can stop the action before you get to the second bump switch that (...) (26 years ago, 11-Mar-99, to lugnet.robotics)
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