Ray Newman wrote:
>>
>> For one-off hobby projects, the Lantronix X-Port does this at around
>> US$50 or so.
> 
> 
> That looks interesting.
> Will call.
> Thanks,
> Ray

I don't have the docs in front of me now but Lantronix had an apnote 
that came on the CD supplied with their development board for the X-Port 
that described remote temperature set/control/measurement using Visual 
Basic.

The entire X-Port device fits inside the RJ45 connector.  You supply 
power and it gives you a network port on one side, a serial port on the 
other and a web server in between.  The installed software can be 
tweaked to fire off email alerts when some event occurs on its 
programmable I/O pins.

There are other solutions from other manufacturers as well. Here's a 
link to a short survey of stuff out there:

http://www.beyondlogic.org/etherip/ip.htm

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