Provided it's not in a very dynamic temperature enviroment, a clip on
heat sink should provide a thermal sink large enough to keep self heating
from being much of an issue, while remaining close to ambient temp.
Watch for solar heating, though, if your temp sensor is ever in direct
sunlight.
Some
I've known of a number of people who canibalize Wii remotes for parts.
There are also folks who have reverse engineered the wii stuff. Do a
google search for it.
Steve
[In a message on Wed, 11 Jan 2012 10:14:05 GMT,
"Mick Sulley" wrote:]
>This is a multi-part message in MIME format.
>--==
I must say that I'm stunningly disapointed with support for the HA7NET
product from Embedded Data Systems.
In May, 2006 we purchased one of the devices along with their temp/humidity
sensor based on their assurances that their sensor was superior to others on
the market for some interesting tec
An even easier way is to use the air pump in the fish tank..
Place a tube at the bottom of the fish tank with no airstone on it.
Set the air flow to slowly bubble air out the bottom of the tube at the
"full" water level.
Place a T in the air line, after the regulator valve and connect a solid
>
>The design depends on there being a difference between the air temperature
>and the water temperature, which may or may not be the case in general. If
>there is any risk of them being at the same temperature you could address
>the problem by attaching a heater resistor to each sensor. Then t
Unfortunately, I've had some experience with the HA7NET boxes...
Based on some information that I'd received that indicated that there is
a technical problem with most of the humidity sensors at low humidities,
and the fact that the testing we do is at low humidities, we bought one
HA7NET box and
>>
>> Or.. if you can meter a constant volume of material onto a "moving scale"
>> you might be able to tell by weight... within a given species of
>> wood.
>
>
>Well, you could try that method. One of the "battery" chips (DS2438, DS246X
>DS247X, DS278X) can measure voltage, current and temperature
If you place two parallel wires in the trough surrounding the screw, parallel
to the flight of the screw, such that you have a constant "volume" of
chips over the sensor wires, then measure the conductivity you will have
a rough idea of moisture content... (This will work better if the screw
has a
[In a message on Fri, 17 Nov 2006 13:28:33 CST,
"Wizard" wrote:]
>Hey guys this is NOT a replacement for mail list. Just another option
>some like it.
>
>you are in no way committed / expected to go in the irc . its a voluntary
>
>it just one more tool we can use personally i like mail lists
The problems I see with IRC is that 1) many corp. networks won't let IRC
thru their firewalls. 2) on a mailing list, there is a "record" kept of
the problems other people are seeing.. this disappears with IRC, and
unless you happen to be on IRC when the question is asked.. you miss the
question/res
I've got one, Paul...
The only one of Embedded's sensors I have is an HMP2001S.. (I've got other
AAG based sensors, though.)
Steve
[In a message on Fri, 12 May 2006 22:23:33 EDT,
""Paul Alfille"" wrote:]
>Does anyone have an HA7Net? It appears for be a small network device with a=
>n
>embedd
[In a message on Mon, 13 Jun 2005 20:06:46 PDT,
"Vadim Tkachenko" wrote:]
>Steve Lancaster wrote:
>
>>Do you even HAVE the same machines you had 10 years ago?
>>
>>
>Generally speaking, yes. My relay box is the first computer I've owned -
>it
Is 10 year old temperature data really worth ANYTHING? (Unless you are the
weather forecasters.)?
While the "cost per megabyte" is low, that assumes that the machine you use
to store it... and the backup tapes and labor you use to back it up, and the
staff you take to support the processes are "fr
Our sensor network is two separate runs off of a (http://www.aag.com.mx)
TAI8595 hub.
One run goes around the ceiling and to the air handler sensors. We have
sensors in each quadrant of the room, and a humidity/temp sensor in the
center.
We placed our sensors in the center of each quadrant of t
[In a message on Thu, 09 Jun 2005 16:31:22 PDT,
""Wright, Ryan P"" wrote:]
>I could use a little help with the design of my 1-wire network. My
>intention is to build a temperature sensing grid throughout a data
>center using several hundred sensors.
>
Several hundred sensors?
Most data center
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