Subject:
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Re: 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 18:49:06 GMT
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Original-From:
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Fred G. Martin <fredm@media.mit.(Spamless)edu>
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Viewed:
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1663 times
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It is largely a space issue, not only for chips but connectors.
It definitely would be feasible to remove one of the analog muxes and
substitute an output latch in its place.
Then the specs would be 8 general purpose, 4 hi impedance, 4 LEGO
analog ins, 2 powered dig outs, 4 servo outs, and 8 CMOS dig outs.
Anyone else care to vote on this option?
> If there was a way to build 24
> digital-in/digital-out/analog-in/analog-out lines (where they could be
> pro grammed by setting a register) that would be so fantastic as to
> make one's robotic he art weep with joy.
Chuck, can you suggest the appropriate chip? Anyone?
-Fred
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Message is in Reply To:
 | | RE: expansion board schematic posted
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| I've got one comment "balance". The expansion board adds 24 new inputs and only 6 new outputs. Perhaps I'm atypical but I don't need any more inputs to the handy board, I've got those aplenty, but I'm screaming for outputs to control other parts of (...) (28 years ago, 7-Feb-97, to lugnet.robotics.handyboard)
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