Looking at the datasheet
http://datasheets.maximintegrated.com/en/ds/DS9092-DS9092T.pdf there is no
mention of LEDs, and only 2 wires (data and ground).
I presume that and LEDs are controlled at the sensor under a strict;y
hardware control (maybe power and contact?)
You wondered about the best way to poll for contact. I think polling is
required, although some bus masters may do that automatically. The cost of
polling isn't that high, but 0.1 second might be a little frequent -- how
long a lag can you tolerate? Also you want to choose a polling scheme that
doesn't require too much overhead -- not starting a full process for each
query.
On Mon, Jun 3, 2013 at 7:40 AM, foster <[email protected]>wrote:
> Nice.
> Anyway DS9092 has two leds iside - red/green. Is in owfs any build-in
> solution how to control this leds?
> I don't mean how to turn on/off leds, I mean how to permanently check if
> any
> ibuuton is touched to DS9092.
> I could in python check every 0,1 sec if id on filesystem is empty or not,
> but if it wil not consune high ammount of power of raspberry.
> Thx.
>
>
>
>
> --
> View this message in context:
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> Sent from the OWFS Developers mailing list archive at Nabble.com.
>
>
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