On 26 July 2011 03:14, Jon Elson el...@pico-systems.com wrote:
Room temperature
(20 C) is 293 uA
It took me longer than it should to spot that they read out directly
in Kelvin. That is rather neat.
--
atp
Torque wrenches are for the obedience of fools and the guidance of wise men
On Tuesday, July 26, 2011 09:39:41 AM andy pugh did opine:
On 26 July 2011 03:14, Jon Elson el...@pico-systems.com wrote:
Room temperature
(20 C) is 293 uA
It took me longer than it should to spot that they read out directly
in Kelvin. That is rather neat.
I have seen the literature on
The AD592 ( analog.com ) should be relatively noise free over reasonable
distances. 1.0 uA/degree K. Bias it with something between 4 and 20 V
and use a current to voltage converter near the computer. The time
constant is pretty good if in flowing air and even better with a small
Al heat sink.
I need to monitor compost pile temperature and thought the above might
work. Wireless with a solar panel (and irrigation control) would be good
too. Hacking a GPIO pin or two, or a serial port might take some effort
so its lower on my vast todo list. I'll be interested if someone comes
up
Igor,
Just to follow up on this... I was at Sam's Club yesterday (a US based
membership store that is part of Walmart).I just happened to run
into a weather station type device they are selling made by Sharp that
has a remote temperature and humidity sensor that links to the base unit
dave wrote:
The AD592 ( analog.com ) should be relatively noise free over reasonable
distances. 1.0 uA/degree K. Bias it with something between 4 and 20 V
and use a current to voltage converter near the computer. The time
constant is pretty good if in flowing air and even better with a small
@lists.sourceforge.net
Subject: Re: [Emc-users] OT -- Ethernet thermometer?
On Saturday, July 23, 2011 11:33:03 AM Przemek Klosowski did opine:
On Fri, Jul 22, 2011 at 3:15 PM, Igor Chudovichu...@gmail.com wrote:
El cheapo ethernet routers cost $9.99:
http://www.newegg.com/Product
=qyjEHkudLHJyJ%2fF%252be%2f7r3
g%3d%3damp;cm_mmc=findchips-_-na-_-na-_-na
-Original Message-
From: Igor Chudov [mailto:ichu...@gmail.com]
Sent: Friday, July 22, 2011 12:40 PM
To: Enhanced Machine Controller (EMC)
Subject: [Emc-users] OT -- Ethernet thermometer?
I would like to buy a thermometer
On Fri, Jul 22, 2011 at 3:15 PM, Igor Chudov ichu...@gmail.com wrote:
El cheapo ethernet routers cost $9.99:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833166034
I believe that a cheap Ethernet thermometer would cost roughly as much, if
someone wanted to produce it.
Yeah but this
You guys amaze me! There must be at least 7 different solutions to
the problem here, and ultimately, you solved his problem with a solution
that may cost him nothing! And that tip about orienting the dial is
very valuable too!
I have been thinking about all the toys and routers and
On Saturday, July 23, 2011 11:33:03 AM Przemek Klosowski did opine:
On Fri, Jul 22, 2011 at 3:15 PM, Igor Chudov ichu...@gmail.com wrote:
El cheapo ethernet routers cost $9.99:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833166034
I believe that a cheap Ethernet thermometer
On Sat, 23 Jul 2011, gene heskett wrote:
Date: Sat, 23 Jul 2011 11:53:24 -0400
From: gene heskett ghesk...@wdtv.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] OT -- Ethernet thermometer
I would like to buy a thermometer that could serve the reading of ambient
temperature over Ethernet. I searched and have not found anything with a
sensible price (say, under $50).
Any idea if such a thing exists?
thanks
On 07/22/2011 12:39 PM, Igor Chudov wrote:
I would like to buy a thermometer that could serve the reading of ambient
temperature over Ethernet. I searched and have not found anything with a
sensible price (say, under $50).
National made some 'one-wire' devices that were cheap and quite
Nope, not that I have found. I was looking for such a thing this morning.
Interfacing a $0.10 thermistor takes a processor then add one that easily
interfaces to the internet gets 'expensive'. There are not many
Ethernet interface devices for under $50 retail.
Even the serial/ethernet devices
On Fri, 2011-07-22 at 13:36 -0500, Jack Coats wrote:
... snip
If you can hack a router and reprogram it to use something like the DallasSemi
onwire devices if you want it to really talk eternet or wifi.
I am guessing the WRT or Tomato software would be fairly easy to do.
I need to monitor
On Fri, Jul 22, 2011 at 1:54 PM, Kirk Wallace
kwall...@wallacecompany.com wrote:
On Fri, 2011-07-22 at 13:36 -0500, Jack Coats wrote:
... snip
If you can hack a router and reprogram it to use something like the
DallasSemi
onwire devices if you want it to really talk eternet or wifi.
I am
El cheapo ethernet routers cost $9.99:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833166034
I believe that a cheap Ethernet thermometer would cost roughly as much, if
someone wanted to produce it.
i
On Fri, Jul 22, 2011 at 2:10 PM, Jack Coats j...@coats.org wrote:
On Fri, Jul
On Fri, 2011-07-22 at 14:15 -0500, Igor Chudov wrote:
El cheapo ethernet routers cost $9.99:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833166034
I believe that a cheap Ethernet thermometer would cost roughly as much, if
someone wanted to produce it.
i
I think this comes
On 22 July 2011 18:39, Igor Chudov ichu...@gmail.com wrote:
I would like to buy a thermometer that could serve the reading of ambient
temperature over Ethernet.
Is there any way you could use USB?
http://www.phidgets.com/products.php?category=6product_id=1124
--
atp
Torque wrenches are for
On Friday, July 22, 2011 03:46:56 PM Igor Chudov did opine:
El cheapo ethernet routers cost $9.99:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833166034
That is not a router, but a hub that their sale copy writers think is a
switch AND its Rosewill, so in my experience, buyer
On 07/22/2011 02:15 PM, Igor Chudov wrote:
El cheapo ethernet routers cost $9.99:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833166034
I believe that a cheap Ethernet thermometer would cost roughly as much, if
someone wanted to produce it.
Is there some reason you HAVE to use
Andy, I want to measure temperature in my chicken coop. There is no pc
there. But there is ethernet and 115v AC.
On Jul 22, 2011 2:49 PM, andy pugh bodge...@gmail.com wrote:
On 22 July 2011 18:39, Igor Chudov ichu...@gmail.com wrote:
I would like to buy a thermometer that could serve the reading
On 22 July 2011 20:56, Igor Chudov ichu...@gmail.com wrote:
Andy, I want to measure temperature in my chicken coop. There is no pc
there. But there is ethernet and 115v AC.
http://www.lecad.fs.uni-lj.si/~leon/other/wlan/wrt54ow/
Any good?
--
atp
Torque wrenches are for the obedience of fools
For simple short distance wireless communication, use a small 8 pin
uC, arduino is overkill, purchase a tx/rx 315MHz or 433MHz pair, a one
wire thermometer and voila, data.
On Fri, Jul 22, 2011 at 3:56 PM, Igor Chudov ichu...@gmail.com wrote:
Andy, I want to measure temperature in my chicken
The link points to a switch not a router. Not sure how that's going to help.
For an ethernet thermometer you could try these:
http://shop.moderndevice.com/products/rbbb-kit
http://shop.moderndevice.com/products/jeelabs-ether-card
Total of about $38. Still not cheap though.
For the DIY folks
a USB adaptor at the
computer end.
John Prentice
- Original Message -
From: Igor Chudov ichu...@gmail.com
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Sent: Friday, July 22, 2011 8:56 PM
Subject: Re: [Emc-users] OT -- Ethernet thermometer?
Andy, I want
...@gmail.com
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Sent: Friday, July 22, 2011 12:39 PM
Subject: [Emc-users] OT -- Ethernet thermometer?
I would like to buy a thermometer that could serve the reading of ambient
temperature over Ethernet. I searched and have not found
On 07/22/2011 10:39 AM, Igor Chudov wrote:
I would like to buy a thermometer that could serve the reading of ambient
temperature over Ethernet. I searched and have not found anything with a
sensible price (say, under $50).
Any idea if such a thing exists?
Netburner has serial-to-ethernet
If you don't need high accuracy - the temp sensors that are used by
indoor/outdoor clocks can be
used with receivers that can switch between several transmitters. - look for
weather station stuff
on Google..
Karl
On 7/22/2011 1:39 PM, Igor Chudov wrote:
I would like to buy a thermometer that could serve the reading of ambient
temperature over Ethernet. I searched and have not found anything with a
sensible price (say, under $50).
Any idea if such a thing exists?
thanks
OK, guys, sadly, I learned that everything is complicated here.
I found a simple solution though: since I have a camera in the chicken coop,
I will just place a regular analog thermometer where the camera can see it.
i
On Fri, Jul 22, 2011 at 4:00 PM, Karl Schmidt k...@xtronics.com wrote:
If
On 7/22/2011 3:56 PM, Igor Chudov wrote:
Andy, I want to measure temperature in my chicken coop. There is no pc
there. But there is ethernet and 115v AC.
On Jul 22, 2011 2:49 PM, andy pughbodge...@gmail.com wrote:
Igor,
I'd go with the webcam inside the coop and include a big dial
Look at the bright side... perhaps you can get a big new John Deere
dial thermometer from the feed store. :-)
Dave
On 7/22/2011 6:04 PM, Igor Chudov wrote:
OK, guys, sadly, I learned that everything is complicated here.
I found a simple solution though: since I have a camera in the chicken
One suggestion based on automotive racing, orient the thermometer so
that the preferred temp range is straight up. That way a quick glance
will tell you whether it is warm enough or not.
On Fri, Jul 22, 2011 at 6:17 PM, Dave e...@dc9.tzo.com wrote:
Look at the bright side... perhaps you can get
Yep, that's the way to go...
And the big john deere thermometer is a splendid idea!
i
On Fri, Jul 22, 2011 at 5:12 PM, Dave e...@dc9.tzo.com wrote:
On 7/22/2011 3:56 PM, Igor Chudov wrote:
Andy, I want to measure temperature in my chicken coop. There is no pc
there. But there is ethernet
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