SV: [basicstamps] Thermistor interface?
Archiver
Posts: 46,084
Greetings!
Just adding my .02cents...
The button is the DS1921 'ThermoChron' and yes, it stores 2048
measurements.
It ALSO notes whether or not the temperature have been outside of the
allowed range, and for how long it was 'out of bounds'
In addition, it can be set to sample with intervals from 1 to 255
minutes, and have the possibility of delayed start.(Can't remember how
long it can be delayed at the moment)
Please note that they come in different versions depending on the
temperature range.
And that when they're not in use, it's a good idea to STOP the internal
oscillator to preserve the internal Lithium cell.
(Doesn't matter if it's connected to +5V through a pull-up resistor as
it'll use parasite power if available)
:-)
Trygve
Opprinnelig melding
Fra: Dave Evartt [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=kEdGVF5bbju3yM5TX9twiPY1MEBoeC8DZA67hqtH6KN2yku6De0VKTOuN_QxbpkDirwITxgsdpL7QM_3GCSBuXLe3Jc]davee@a...[/url
Sendt: 30. januar 2004 01:01
Til: basicstamps@yahoogroups.com
Emne: Re: [noparse][[/noparse]basicstamps] Thermistor interface?
THERE IS AN IbUTTON THERMISTER THAT HAS A BUILT IN
DATALOGGER. yOU CAN SET IT TO GO OFF AS OFTEN AS YOU WANT. i
THINK IT WILL STORE 2048 SAMPLES
Sorry, had the caps on.
---- Original message ----
>Date: Thu, 29 Jan 2004 21:31:32 -0000
>From: "russranshaw" <home.rr@c...>
>Subject: [noparse][[/noparse]basicstamps] Thermistor interface?
>To: basicstamps@yahoogroups.com
>
>Does anyone know of a thermistor interface to a Stamp? I'd
like to
>measure temperature over a wider range than the
thermocouple provides.
> I want to track "degree-days".
>
>Russ
>
>
>
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--
Regards
Dave Evartt
American Hovercraft
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Just adding my .02cents...
The button is the DS1921 'ThermoChron' and yes, it stores 2048
measurements.
It ALSO notes whether or not the temperature have been outside of the
allowed range, and for how long it was 'out of bounds'
In addition, it can be set to sample with intervals from 1 to 255
minutes, and have the possibility of delayed start.(Can't remember how
long it can be delayed at the moment)
Please note that they come in different versions depending on the
temperature range.
And that when they're not in use, it's a good idea to STOP the internal
oscillator to preserve the internal Lithium cell.
(Doesn't matter if it's connected to +5V through a pull-up resistor as
it'll use parasite power if available)
:-)
Trygve
Opprinnelig melding
Fra: Dave Evartt [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=kEdGVF5bbju3yM5TX9twiPY1MEBoeC8DZA67hqtH6KN2yku6De0VKTOuN_QxbpkDirwITxgsdpL7QM_3GCSBuXLe3Jc]davee@a...[/url
Sendt: 30. januar 2004 01:01
Til: basicstamps@yahoogroups.com
Emne: Re: [noparse][[/noparse]basicstamps] Thermistor interface?
THERE IS AN IbUTTON THERMISTER THAT HAS A BUILT IN
DATALOGGER. yOU CAN SET IT TO GO OFF AS OFTEN AS YOU WANT. i
THINK IT WILL STORE 2048 SAMPLES
Sorry, had the caps on.
---- Original message ----
>Date: Thu, 29 Jan 2004 21:31:32 -0000
>From: "russranshaw" <home.rr@c...>
>Subject: [noparse][[/noparse]basicstamps] Thermistor interface?
>To: basicstamps@yahoogroups.com
>
>Does anyone know of a thermistor interface to a Stamp? I'd
like to
>measure temperature over a wider range than the
thermocouple provides.
> I want to track "degree-days".
>
>Russ
>
>
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed. Text in
the Subject and Body of the message will be ignored.
>
>
>Yahoo! Groups Links
>
>To visit your group on the web, go to:
>http://groups.yahoo.com/group/basicstamps/
>
>To unsubscribe from this group, send an email to:
>basicstamps-unsubscribe@yahoogroups.com
>
>Your use of Yahoo! Groups is subject to:
>http://docs.yahoo.com/info/terms/
>
>
--
Regards
Dave Evartt
American Hovercraft
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject
and Body of the message will be ignored.
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To visit your group on the web, go to:
http://groups.yahoo.com/group/basicstamps/
To unsubscribe from this group, send an email to:
basicstamps-unsubscribe@yahoogroups.com
Your use of Yahoo! Groups is subject to:
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