Looking for DigiTemp-compatible temp/humidity sensor

[Hamw]

I would LOVE to be able to use this program. However, my most
important project is to monitor the temp and humidity in my crawl
space. The device referenced on the website, the AAG temp/humidity
sensor, is apparently no longer available, and the company appears to
have gone out of business.

Is there another compatible sensor out there?

Thanks!

[Clyde Gill]

I have purchased a few items from hobby boards, though never this one.  There are others out there if you search for 1 wire humidity.

http://www.hobby-boards.com/store/products/Humidity%7B47%7DTemp.html 

[Marc MERLIN]

On Thu, May 10, 2012 at 09:48:57PM -0500, Clyde Gill wrote:
> I have purchased a few items from hobby boards, though never this one.
> There are others out there if you search for 1 wire humidity.

Keep in mind that if you use another humidity sensor and it happens to work
with digitemp, it is also likely to give you bad data because digitemp has a
hardcoded ADC table that will not be correct for your device.

I recommend you look at owfs which offers multiple ADC tables depends
on what chip you have.

Marc

> http://www.hobby-boards.com/store/products/Humidity%7B47%7DTemp.html
>
> On Thu, May 10, 2012 at 8:44 PM, Hamw <whwil...@gmail.com> wrote:
>
> > I would LOVE to be able to use this program. However, my most
> > important project is to monitor the temp and humidity in my crawl
> > space. The device referenced on the website, the AAG temp/humidity
> > sensor, is apparently no longer available, and the company appears to
> > have gone out of business.
> >
> > Is there another compatible sensor out there?
> >
> > Thanks!

--
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Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/

[Koos van den Hout]

Quoting Clyde Gill who wrote on Thu 2012-05-10 at 21:48:

> I have purchased a few items from hobby boards, though never this one.
> There are others out there if you search for 1 wire humidity.
>
> http://www.hobby-boards.com/store/products/Humidity%7B47%7DTemp.html

Exactly that sensor (with coating and a case, in a small weather hut) does
temperature and humidity for http://weatherstation.idefix.net/

I'm quite satisfied with it.

Koos van den Hout

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http://idefix.net/ Are you ready to start supporting IPv6?

[Tom]

I have three of these Hobby Boards humidity/temperature sensors working fine for me.

I also am quite satisfied with them.

I have 18 1wire devices and use digitemp for all of my temp and humidity readings, without problems.

The owfs is far too much over-kill for most hobby applications.

 

Sorry Mark, but...

With all due respect, I find Mark MERLIN tends to favor owfs over digitemp for most things.

I have found some of his advice either wrong/misleading or, at best, biased towards owfs.

[Hamw]

I appreciate the recommendation for the Hobby Board sensors. Should I
understand that these sensors will accurately report temp and humidity
using the DigiTemp monitoring software?

My planned installation is in my house's basement. There would be
three sensors, one directly below the computer room and the other two
each about 75 ft away in opposite sides of the house. Does one run RJ6
or what, and how do you hook them up to a single receiver? Do they
each need independent power supplies?

sorry for the newbie questions, but I am looking at several solutions
and it seems one wire might be the most bullet proof. Hence the
details to see if it is possible....

Much appreciated.

Ham

On May 11, 3:36 am, Koos van den Hout <k...@kzdoos.xs4all.nl> wrote:
> Quoting Clyde Gill who wrote on Thu 2012-05-10 at 21:48:
>
> > I have purchased a few items from hobby boards, though never this one.
> >  There are others out there if you search for 1 wire humidity.
>
> >http://www.hobby-boards.com/store/products/Humidity%7B47%7DTemp.html
>
> Exactly that sensor (with coating and a case, in a small weather hut) does

> temperature and humidity forhttp://weatherstation.idefix.net/

>
> I'm quite satisfied with it.
>
>                                                Koos van den Hout
>
> --
> Koos van den Hout,           PGP keyid DSS/1024 0xF0D7C263 via keyservers

> k...@kzdoos.xs4all.nl                          IPv6: Think ::/0, act ::1.http://idefix.net/               Are you ready to start supporting IPv6?
>
>  signature.asc
> < 1KViewDownload

[Marc MERLIN]

On Mon, May 14, 2012 at 08:29:34PM -0700, Hamw wrote:
> I appreciate the recommendation for the Hobby Board sensors. Should I
> understand that these sensors will accurately report temp and humidity
> using the DigiTemp monitoring software?

As I said in an earlier message, do not expect the humidity reported to be
correct. That said, it's likely only going to be off by 10% at most (I'm
guessing).
Go read my message for details as to why and how owfs is a better choice
than digitemp if you care.

Marc

[Koos van den Hout]

Quoting Hamw who wrote on Mon 2012-05-14 at 20:29:

> I appreciate the recommendation for the Hobby Board sensors. Should I
> understand that these sensors will accurately report temp and humidity
> using the DigiTemp monitoring software?

I use it with w1retap, but it gives the same reading (plus/minus rounding:
digitemp gives whole numbers for humidity).

Humidity=79.98 %

May 15 09:32:38 Sensor 1 C: 13.22 F: 55.79 H: 80%
^^^^^^

> My planned installation is in my house's basement. There would be
> three sensors, one directly below the computer room and the other two
> each about 75 ft away in opposite sides of the house. Does one run RJ6
> or what, and how do you hook them up to a single receiver? Do they
> each need independent power supplies?

I use phone wire crimped in RJ45 connectors, using pins 2, 4 and 5.

Pin 2 = +5V
Pin 4 = Data
Pin 5 = Ground

In the simplest setup, sensors are daisy chained, the 1-wire protocol uses
an ingenious method to address sensors directly and detect sensors.

Which means you will have to discover which humidity sensor is which before
you install them in the basement. The simplest trick is to just hook up 1
sensor via the 1-wire adapter to your computer, let the computer scan for
the devices via 'digitemp.. -w', and note the address found and label the
sensor:

Devices on the Main LAN
108FB1130208003E : DS1820/DS18S20/DS1920 Temperature Sensor
26C1E0F1000000ED : DS2438 Temperature, A/D Battery Monior

I have written about my 1-wire experiences at
http://idefix.net/~koos/onewire.html

Koos van den Hout

--

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PGP keyid DSS/1024 0xF0D7C263
Webprojects: Camp Wireless http://www.camp-wireless.org/
The Virtual Bookcase http://www.virtualbookcase.com/

[zippytech]

any idea on what and where I can get a humidity sensor for digitemp?

[Robert Terzi]

On 8/5/2014 9:09 AM, zippytech wrote:
> any idea on what and where I can get a humidity sensor for digitemp?
>

I've got two from iButtonLink that have been running for 5+ years.

Looks like they are still selling them:

http://www.ibuttonlink.com/products/ms-th

[zippytech]

I just got the MS-TH but when I plug it in to the 1 wire network, some of the other sensors stop working, some times they read, some times they don't including the MS-TH
any idea's

[Jason Sipula]

http://www.ibuttonlink.com/products/ms-th

these seem to work great for me.

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[Jason Sipula]

sorry, just realized i read the tail of the thread.

sounds to me like you might have a power issue.

[zippytech]

the unit requires 5 volts right?

It's odd that it reads some times but not other time.