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Hello,

>  	I'm looking to get an external temperature sensor to hook up to
>  	one of the NetBSD machines in our machine room. Would anyone
>       have any thoughts/suggestions?

There's some support for Analog Devices ADT7467 and ADM1030 in the tree.
( 'some support' as in sensors can be read via envsys, thresholds can be
set via sysctl but there's no way to change things like hysteresis,
temperature/rpm slope or the more complex innards of the ADT 7467 )
Both are controlled via I2C and probably overkill since
both have an on-chip thermal sensor, one ( ADM1030 ) or two ( ADT7467 )
inputs for external sensors and both can control fans based on
programmable temperature thresholds. Data sheets are freely available (
I can mail you the pdfs if you can't find them )

have fun
Michael

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