Re: ethernet-based temperature sensors
On Wed, 3 Sep 2003, matthew zeier wrote: I know this has been mentioned before, but other than NetBotz (too pricey), what are people use as ethernet-based, SNMP-probable temp sensors? http://www.jacarta.co.uk Rich
Re: ethernet-based temperature sensors
Speaking on Deep Background, the Press Secretary whispered: On Wed, 3 Sep 2003, matthew zeier wrote: I know this has been mentioned before, but other than NetBotz (too pricey), what are people use as ethernet-based, SNMP-probable temp sensors? http://www.jacarta.co.uk Argh -- There used to be spider sensors that were cheap but I heard they shut down. What you need is something based on those stamp CPU's but I donno who is making such... -- A host is a host from coast to [EMAIL PROTECTED] no one will talk to a host that's close[v].(301) 56-LINUX Unless the host (that isn't close).pob 1433 is busy, hung or dead20915-1433
RE: ethernet-based temperature sensors
We use a Temptrax device (around $250) which we wrote our own interface for graphing and alerting. No SNMP, but the price is right. They also provide plugins for several monitoring systems. Bob
Re: ethernet-based temperature sensors
At 12:59 04/09/2003, David Lesher wrote: Speaking on Deep Background, the Press Secretary whispered: On Wed, 3 Sep 2003, matthew zeier wrote: I know this has been mentioned before, but other than NetBotz (too pricey), what are people use as ethernet-based, SNMP-probable temp sensors? http://www.jacarta.co.uk Argh -- There used to be spider sensors that were cheap but I heard they shut down. What you need is something based on those stamp CPU's but I donno who is making such... Turning the question around, what sort of price point are you looking at? A guesstimate says that there's $150 worth of *parts* in a box just to do temperature monitoring that will take an EtherNet connection (unless you were manufacturing a gazillion of them). -- A host is a host from coast to [EMAIL PROTECTED] no one will talk to a host that's close[v].(301) 56-LINUX Unless the host (that isn't close).pob 1433 is busy, hung or dead20915-1433
Re: ethernet-based temperature sensors
At 7:59 -0400 9/4/03, David Lesher wrote: Argh -- There used to be spider sensors that were cheap but I heard they shut down. What you need is something based on those stamp CPU's but I donno who is making such... 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/ Oops, somebody's already done it: http://www.maxim-ic.com/appnotes.cfm/appnote_number/1048/ln/en Looks like the total hardware cost would be around $100 for the TINI and board, and $8 for each sensor (iButton and holder). I have little time and no Java skills, otherwise it looks like a cool project. If somebody wants to develop a machine room temperature monitoring network out of them, I'd be a beta tester ;) Bill.
RE: ethernet-based temperature sensors
From: Bill Owens [mailto:[EMAIL PROTECTED] 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, CNE332 Science Park, Cambridge CB4 0BZ Tel: +44 1223 382175 http://www.uk.uu.net/ VNET: 311 3175 http://www.mci.com/
Re: ethernet-based temperature sensors
APC Makes a nice little monitor unit (AP9312TH), List price is $279.00, but you should be able to get them cheaper off the web. If you have APC UPS's on-Site, they also have environmental modules that plug directly into the SmartSlot. Spencer Spencer Wood, Network Manager Ohio Department Of Transportation 1320 Arthur E. Adams Drive Columbus, Ohio 43221 E-Mail: [EMAIL PROTECTED] Phone: 614.644.5422/Fax: 614.887.4021/Pager: 866.591.9954 * matthew zeier [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 09/03/2003 08:17 PM To [EMAIL PROTECTED] cc Subject ethernet-based temperature sensors I know this has been mentioned before, but other than NetBotz (too pricey), what are people use as ethernet-based, SNMP-probable temp sensors? I very simply need to trend temp with cricket/mrtg in various parts of the data center. Looking for real-world experience. Thanks. -- matthew zeier - Curiosity is a willing, a proud, an eager confession of ignorance. - Leonard Rubenstein
Re: ethernet-based temperature sensors
Speaking on Deep Background, the Press Secretary whispered: Oops, somebody's already done it: http://www.maxim-ic.com/appnotes.cfm/appnote_number/1048/ln/en Looks like the total hardware cost would be around $100 for the TINI and board, and $8 for each sensor (iButton and holder). I have little time and no Java skills, otherwise it looks like a cool project. If somebody wants to develop a machine room temperature monitoring network out of them, I'd be a beta tester ;) That looks a lot closer to the Yellow Brick Road than anything else suggested to date. I like the 64 bit SN idea; sounds like MAC addresses... Note there are several analog temp sensors out there -- National has a line that is dirt cheap ($~1.00) and work on current loops [i.e. LONG leads are OK..] so if someone has a SNMP driven A-D -- A host is a host from coast to [EMAIL PROTECTED] no one will talk to a host that's close[v].(301) 56-LINUX Unless the host (that isn't close).pob 1433 is busy, hung or dead20915-1433
ethernet-based temperature sensors
I know this has been mentioned before, but other than NetBotz (too pricey), what are people use as ethernet-based, SNMP-probable temp sensors? I very simply need to trend temp with cricket/mrtg in various parts of the data center. Looking for real-world experience. Thanks. -- matthew zeier - Curiosity is a willing, a proud, an eager confession of ignorance. - Leonard Rubenstein
