[61770] in North American Network Operators' Group
RE: ethernet-based temperature sensors
daemon@ATHENA.MIT.EDU (Neil Ronketti)
Thu Sep 4 12:17:34 2003
From: Neil Ronketti <neil.ronketti@uk.mci.com>
To: nanog@merit.edu
Date: Thu, 4 Sep 2003 17:16:06 +0100
Errors-To: owner-nanog-outgoing@merit.edu
> From: Bill Owens [mailto:owens@nysernet.org]
>
> I suppose if one had enough time and interest, and some Java skills,
> you could make something out of these:
>
> http://www.ibutton.com/ibuttons/thermochron.html
> http://www.ibutton.com/TINI/applications/sertoeth/
</lurk>
If you don't want to use the little iButton holder jobbie, you can use just
the DS1820 range of sensors from Dallas Semiconductor. I bodged up something
using one of these and a DS9097U RS-232 adaptor:
http://www.neil.nu/temp.html
I realise this is probably only of peripheral interest, as the original post
requested a unit with SNMP capability, and the DS1820 doesn't provide
anything as sophisticated. It was, however, completely free of charge as I
got the bits as samples from Farnell in the UK. The software to drive the
units is freely available, and it should be pretty trivial to get it to mail
a pager or whatever if the temperature goes outside of limits.
First post - please be gentle.
--
Neil Ronketti MCI, Internet House,
IP Design Engineer, CNE 332 Science Park, Cambridge CB4 0BZ
Tel: +44 1223 382175 http://www.uk.uu.net/
VNET: 311 3175 http://www.mci.com/
