Subject:
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Not enough Servo ports on Expansion board
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sun, 9 Feb 1997 01:48:14 GMT
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Original-From:
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Daniel Roganti <ragman@{avoidspam}euronet.nl>
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Viewed:
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1517 times
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Hello,
Iwould suggest increasing the available servo ports on this.
Servos are widely available, getting cheaper, and compact for robotics.
This could have been facilitated on the original Handy board, but nevermind.
I'm already using my method on my homebuilt 68HC11.
With a single Output port pin you can expand to 9 servo outputs.
This is using a 4017 Decade counter, 1N4148, 0.47uf, 100K , that's all.
All there is left is to program a serial bit stream containing a composite
of all the servo pulse widths
You can view my servo expander on my Robotics webpage at my website.
http://www.euronet.nl/users/ragman
thanks,
daniel
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NAME: Daniel Roganti
EMAIL: ragman@euronet.nl
SMAIL: Oud Wulvenlaan 35-2, 3523XS Utrecht, Netherlands, Europe
WWW: http://www.euronet.nl/users/ragman
Back Home: Margate, Florida Hometown: Elmont, New York
.....exploring cyberspace before it runs out of space.....
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