On 6-Oct-05, at 8:28 AM, Ossi Herrala wrote:
> On Thu, Oct 06, 2005 at 02:15:58PM +0100, David Brownlee wrote:
>>     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?
> Dallas/Maxim 1-Wire temperature sensors with Digitemp.
>
>     http://www.digitemp.com/
>
> Digitemp is a linux-software. It might work on NetBSD, or someone
> might port it easily? I think someone was using it on NetBSD, but I
> can't recall any details right now.

I have one of these:

http://kitsrus.com/pdf/k145.pdf

It uses the DS1820, and a small PIC to translate the temperature to  
an rs232 port.  It's cheap, takes about 10 minutes to solder together  
and 'just works'.

I know it's not optimal but you can place it anywhere in the room you  
like.