Subject:
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Re: RCX port information
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 17 Dec 1998 13:45:28 GMT
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Original-From:
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Markus L. Noga <markus.noga@inrialpesSPAMCAKE.fr>
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Viewed:
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1287 times
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Jasper Janssen wrote:
>
> On Sat, 12 Dec 1998 11:50:20 GMT, lego-robotics@crynwr.com (Markus L.
> Noga) wrote:
>
> > More specifically, the microcontroller has 8 A/D input pins. Right now,
> > four of them are used - Sensor 1 through 3 and battery voltage. These
> > are A/D channels 0-3 in group 0, so they take pins AD0..AD3. However,
> > the A/D input pins double as Port 7 digital input pins. Pin 6,7 are
> > connected to the program and view buttons, respectively. This leaves
> > candidates AD4/5.
>
> Whoa... so you mean, I can just like, take apart a 9V lead, solder
> them to those pins, and have 2 extra sensor inputs? or is there extra
> 'lectronics involved?
Nobody tried so far. The above is merely speculation - that's why I said
"candidates". Should the pins turn out to be unused, legOS will support
6 A/D channels with minor changes.
I have some software to work on right now, and I have a student working
with my RCX, so I can't really experiment with hardware at the moment. I
might be looking into this after Christmas. If you have some spare time
now - go ahead, I'll support you.
--
Markus L. Noga noga@inrialpes.fr
INRIA Rhône-Alpes http://www.inrialpes.fr/
IPR Universität Karlsruhe http://wwwipr.ira.uka.de/
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Message has 2 Replies:
 | | Re: RCX port information
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| (...) Well... my RCX won't be shipped till after jan 1... ohwell. I'll look into it when I get it, tho. 6 inputs is _so_ much more useful than 3. Jasper (26 years ago, 21-Dec-98, to lugnet.robotics)
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Message is in Reply To:
| | Re: RCX port information
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| (...) Whoa... so you mean, I can just like, take apart a 9V lead, solder them to those pins, and have 2 extra sensor inputs? or is there extra 'lectronics involved? Jasper (26 years ago, 17-Dec-98, to lugnet.robotics)
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