Subject:
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Re: Multiplexing Input Circuit
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 13 Nov 1998 00:45:43 GMT
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Original-From:
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Ray Kelm <rhk@newimage.com&avoidspam&>
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Viewed:
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2205 times
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A simple RC circuit will work for the reset. In your code, make
the first time you turn on power to the sensor delay a little
longer, and the delays between subsequent readings short.
I was discussing this with a co-worker, and the possibilities
of extending it to an arbitrary number of analog inputs. It'd
work best with firmware support to handle the mux control.
Michael Gasperi wrote:
>
> I think Sven thought of this first. Anyway I threw a circuit together
> last night that uses the SetSensorType to switch between 4 inputs. I put
> it on a page at:
> http://ourworld.compuserve.com/homepages/Michael_Gasperi/mux.htm
> It seems to work well, but startup is a problem. It starts out on input
> 1 but if you stop the program it can get lost. I need to add a reset
> circuit. Any suggestions?
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Message is in Reply To:
 | | Multiplexing Input Circuit
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| I think Sven thought of this first. Anyway I threw a circuit together last night that uses the SetSensorType to switch between 4 inputs. I put it on a page at: (URL) seems to work well, but startup is a problem. It starts out on input 1 but if you (...) (26 years ago, 12-Nov-98, to lugnet.robotics)
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