General Home Automation Need help with some sort of wireless thermometer set up at work

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Need help with some sort of wireless thermometer set up at work stryped 02-21-06
Posted by stryped on February 21, 2006, 8:31 am
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We are a metal working factory. We have a need to measure the ambient
air temperature at approximately 33 locations in our facility. We would
like to be able to access this information from the front office. (The
33 points we need to measure are out in the plant). Can this be done
over a network or something? Any help would be appreciated!


Posted by William at MyBlueRoom on February 21, 2006, 9:36 am
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Does it have to be wireless? Can you run a 4 wire cable or cat5 to all
the sensors?

If yes then there are quite a few ways, RS485 can be daisy chained to
quite a distance (depending on conditions 4000').
I'm working on a similar project and you can view the Cricket
schematics at www.myblueroom.com

Also for short runs <300' total you could use 2 wire (data & gnd)
iButtons / 1wire devices www.ibutton.com

As for wireless you might google zigbee or zwave thermostats
.
Bill


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