Subject:
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digital and analog port on HD
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sun, 17 Jan 1999 10:16:03 GMT
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Original-From:
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phillip chia <philchia@singnet.com.sgAVOIDSPAM>
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Viewed:
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742 times
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Hi,
I want to use the digital port as an analog port input. How should I
convert the digital port to analog in using programming way ? I do not
quite understand the explanation on the technical manual handout. if
possible, how to convert the analog port to digital port also using
programming . Please advice.
It is like that, please correct if wrong :-
if (analog (12) <127)
{ ..............
.............
}
else if (digital (3) == 1)
{ .................
'..................
}
rgds,
phillip chia
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Message has 2 Replies:
 | | Re: digital and analog port on HD
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| (...) A digital port can't have the capability of an analog port, since it has only one bit of information with which to work. (A 256-value analog port has eight bits.) You could perhaps hook an analog sensor up to a digital port using some sort of (...) (26 years ago, 18-Jan-99, to lugnet.robotics.handyboard)
| | | Re: digital and analog port on HD
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| (...) Just thought I would add that it *is* possible (if a bit slow) to read an analog signal w/ a digital port by timing the decay of the signal thru a RC circuit...not a particularly precise method, either. < Watching for the Fedex guy bringing my (...) (26 years ago, 18-Jan-99, to lugnet.robotics.handyboard)
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