Subject:
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Re: expansion board problems
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 10 May 2000 22:12:49 GMT
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Viewed:
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882 times
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a follow-up to my own message - it seems that this problems occur WHILE i am
actually running the application and using the project. if anyone can help at
all - i would be very grateful, i am at a loss and urgent to get this working.
i have built sixteen very simple mats which are made of vinyl, copper, and
foam - it is a simple contact which, when stepped on, drops the value downt to
nearly 1. i had a small model of this working for months, and only after a
while using the actual size project, did this start occuring. there is no
problem with the handyboards, but the expansion boards, one after one, seem to
be flipping out. suddenly - the values begin skipping all over the place, or
in the latest case, 6 of them just rest at 4.
does anyone have any ideas for me? i have tried different code and different
boards, nothing works, and i am at a loss to understand.
thanks in advance,
claudia
In lugnet.robotics.handyboard, Claudia Bernett writes:
> hello.
>
> i seem to be having an expansion-board problem which is very puzzling. i am
> using all sixteen ports, and am in the process of putting together a project
> which requires that it be stored with all sixteen ports occupied for a week or
> two at a time - but unpowered. after this period of storage, it has (two
> times now, with two different expansion boards) begun to behave in a very
> strange way. the values are essentially all over the place, jumping from 255
> to 25 to 4 to 115 etc...
>
> has anyone encountered this - and does anyone have any idea what could be
> causing the problem? this has occurred with two expansion boards in a row.
>
> thanks in advance,
> claudia
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Message has 2 Replies:
 | | Re: expansion board problems
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| Claudia, Without a lot more detail, it will be difficult to solve this one over the internet. If you can take a few minutes and regroup, maybe someone will have an idea. The kinds of things it would be good to know, interspersed with my comments: 1. (...) (25 years ago, 10-May-00, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | expansion board problems
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| hello. i seem to be having an expansion-board problem which is very puzzling. i am using all sixteen ports, and am in the process of putting together a project which requires that it be stored with all sixteen ports occupied for a week or two at a (...) (25 years ago, 9-May-00, to lugnet.robotics.handyboard)
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