Subject:
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Newcomer
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 19 Dec 1996 06:13:33 GMT
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Original-From:
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Ameen Suleman <suleman@mhv.=nomorespam=net>
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Viewed:
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2264 times
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Hello:
First - thanks for all the good information that we were able to find on
the handyboard
web page and on the associated ftp site.
My son and I have decided that we would like to build the handyboard rather
than
buy one ready-built. We have no prior experience in building anything
electronic.
We have looked at the assembly instructions - at least the first 15 pages
and they
look fairly detailed. May be we need a vote of confidence ...
We have the parts list and I guess the next thing to do is to order the
parts and get
the boards. Now, we have several questions:
1. Which 68HC11 to get: the ...A1 or the ...E1?
2. Do we just put in the parts list to Digikey or Jameco or is there more
to it?
3. What kind of logic probe to get and where do we get that? Can't afford
an
oscilloscope.
4. We figured we would need an analog output (through a DAC?) to feed into
the R/C transmitter - eventually. Where would that fit into the scheme
of
things? Can a DAC be controlled by the 68HC11?
Best Regards,
Usman & Ameen Suleman
suleman@mhv.net
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Message has 2 Replies:
 | | Re: Newcomer
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| (...) either. some people like the e1 better because it has more flexible timer and counter lines. but the a1 has a simpler bootstrap sequence and is less likely to have compatibility problems with the host computer. (...) No, it's harder than this. (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
| | | Re: Newcomer
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| (...) The E variant can handle 4 IC lines and 4 OC lines, while the A must do 3 IC lines and 5 OC lines. The IC and OC lines are the way the processor handles timer-sensitive signals, such as RC signals. The Handyboard can handle up to 2 ICs and 2 (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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