nanog mailing list archives
monitoring box (was Re: small device with IP address)
From: Bennett Todd <bet () rahul net>
Date: Fri, 22 Dec 2000 15:15:32 -0500
2000-12-22-11:30:28 Tom:
It wouldn't be that difficult to roll a simple Altoid-tin sized board w/ an enet port (he say's before he's done it:)
Sounds right to me.
Seriously, there are a # of SOC in development for refridgerator web-interfaces & the like.
SOC? Or SBC?
Question is, beyond pinging an isolated device, what's most useful?
Keep It Simple, no question.
Could tack on an interface for; temp sensors, power condition monitors, ect.
For cost/benefit tradeoff, I'd personally favour simply a temp sensor. I _think_ it oughta be possible to package a little wart including network I/F and simple-minded temp sensor that powers itself entirely off the ethernet interface itself, i.e. doesn't need any other power supply. Might need to be plugged in for a few seconds before it succeeds in storing enough reserves to make it through link negotiation, but if you could avoid having to plug into a power socket at all it'd be so much handier.
Further, how to best power; wall wart, batt, combination of the two ?
Definitely none of the above. How about a box that responds to just one protocol type, I'd tend to vote for a trivial UDP packet that it doesn't even bother decoding, just checks dst port and tears out src port and addr, with a reply packet containing whatever encoding is easiest to generate of the latest measurement off the temp sensor. -Bennett
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Current thread:
- environmental monitors, (continued)
- environmental monitors Jimmy Kyriannis (Dec 22)
- Re: environmental monitors Jim Mercer (Dec 22)
- RE: small device with IP address Deepak Jain (Dec 21)
- Re: small device with IP address Joel Jaeggli (Dec 21)
- Re: small device with IP address jlewis (Dec 21)
- Re: small device with IP address Andrew Brown (Dec 21)
- Re: small device with IP address Mikael Abrahamsson (Dec 21)
- Re: small device with IP address Joe Abley (Dec 22)
- Re: small device with IP address Joel Jaeggli (Dec 23)
- Re: small device with IP address jlewis (Dec 21)
- monitoring box (was Re: small device with IP address) Bennett Todd (Dec 22)
- Re: monitoring box (was Re: small device with IP address) David Charlap (Dec 22)
- Re: small device with IP address John Fraizer (Dec 22)
- Re: small device with IP address Bill Woodcock (Dec 22)
- Re: small device with IP address Neil J. McRae (Dec 22)