Subject:
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expansion board schematic posted
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 7 Feb 1997 05:15:07 GMT
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Original-From:
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Fred G. Martin <fredm@media.mit.(ihatespam)edu>
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Viewed:
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1546 times
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Hi all,
I have put on the web site a schematic drawing of the expansion board
as it currently stands.
I would appreciate any comments regarding the feature set. In
particular, I'm not sure what's best to do with the two digital
outputs:
* just provide the raw CMOS signal
* drive an NPN transistor to give a 100 mA 5v switched power
* use a pair of transistors per output to give 1A, 9v switched power
any suggestions are welcome.
-Fred
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Message has 2 Replies:
 | | Re: expansion board schematic posted
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| (...) Since there's some prototyping area, why not just make them regular CMOS signals and include application notes on the web page on how to use the signals for various options. How does the expansion board mount? Looks like it plugs into the top (...) (28 years ago, 7-Feb-97, to lugnet.robotics.handyboard)
| | | Re: expansion board schematic posted
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| I vote for the 100mA 5V switch. Digital Outs seem to be quite the disired feature here amoung many. This 100mA capability also provides more options for people to use these signals. It's better than just the CMOS signal, since it can double as that (...) (28 years ago, 10-Feb-97, to lugnet.robotics.handyboard)
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