When in alarm condition, the device should appear in the /alarm directory.
OWFS won't automatically poll the device, you need to do this in your
program. (It can be as simple as a shell script with a loop and a "sleep"
command).
Paul Alfille
On Thu, Feb 25, 2010 at 6:40 PM, Alessio Sangalli <ale...@manoweb.com>wrote:
> Just a question: in what way I can use DS2450's alarm threshold feature?
>
> Basically, I want to "monitor" and "detect" overvoltages coming on the
> Vin. Say I want to "report" everytime the voltage goes above 20VDC (when
> the nominal is 14VCD).
>
> I could setup a voltage divider so that I can measure up to say, 75V and
> still be in the range of the 5.12VDC the DS2450 can sample from.
>
> And this is all under control.
>
> How do I use the software to notify when I get this overvoltage? This is
> what I do not understand, right now :(
>
> Thank you
> Alessio
>
>
>
>
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