Need to execute digitemp multiple times to read temps and humidity

[Peter]

Hi,

I have a number of temperature sensors and two humidity sensors. I
would like to read all sensors via single execution of digitemp, but
right now the only way I can gather data from all sensors is via the
following.

digitemp_DS9097U -c /home/pete/digitemp-3.6.0/.digitemprc -a -o2
digitemp_DS9097U -c /home/pete/digitemp-3.6.0/.digitemprc -t4 -H\%h -q
digitemp_DS9097U -c /home/pete/digitemp-3.6.0/.digitemprc -t1 -H\%h -q

Is there an easier way to accomplish this?

Thanks,
Peter

[Lars Heineken]

Hi Peter,

At first I thought you were missing a digitemprc file, but that's obviously not the case.
Unfortunately I don't own any humidity sensors to test, but my guess would have been that -a would read all sensors of the config (humidity and temperature). My digitemprc file contains formatting strings for both of them. Yours as well?

Best regards,

Lars.

[Guenther Boelter]

Hi Peter,

digitemp is great but in this case you should take a look at ardunio or
similar.

Regards
Guenther

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[Brian C. Lane]

What, exactly, is the problem? -a should make it read all the sensors.

--
http://www.brianlane.com

[Peter]

> What, exactly, is the problem? -a should make it read all the sensors.

This is the output I get with -a (where all of the sensors are being
read).

[pete@webmail digitemp-3.6.0]# ./digitemp_DS9097U -a
DigiTemp v3.5.0 Copyright 1996-2007 by Brian C. Lane
GNU Public License v2.0 - http://www.digitemp.com
Apr 22 20:39:52 Sensor 1 C: 7.97 F: 46.34 H: 0%
Apr 22 20:39:53 Sensor 2 C: 20.81 F: 69.46
Apr 22 20:39:54 Sensor 3 C: 18.88 F: 65.97
Apr 22 20:39:55 Sensor 4 C: 17.44 F: 63.39 H: 47%
Apr 22 20:39:55 Sensor 5 #0 80
Apr 22 20:39:55 Sensor 5 #1 79

I've been trying to use the -o 2 format for export purposes, but this
does not show the humidity readings. Hence my original question
regarding the need to run both digitemp three times (first with -a -o
2), then to read the humidity value of sensor 1, then the humidity
value of sensor 4.

[root@webmail digitemp-3.6.0]# ./digitemp_DS9097U -a -o 2
DigiTemp v3.5.0 Copyright 1996-2007 by Brian C. Lane
GNU Public License v2.0 - http://www.digitemp.com
0 8.16 20.81 18.94 17.47 80 79

Is there an easy way to get a tab delimited file containing all
readings (temperature, humidity, counter).

Thanks,
Peter

[Dale Reagan]

On Apr 22, 8:48 pm, Peter <contact...@gmail.com> wrote:
> > What, exactly, is the problem? -a should make it read all the sensors.
>
> This is the output I get with -a (where all of the sensors are being
> read).
>
> [pete@webmail digitemp-3.6.0]# ./digitemp_DS9097U -a
> DigiTemp v3.5.0 Copyright 1996-2007 by Brian C. Lane

> GNU Public License v2.0 -http://www.digitemp.com

> Apr 22 20:39:52 Sensor 1 C: 7.97 F: 46.34 H: 0%
> Apr 22 20:39:53 Sensor 2 C: 20.81 F: 69.46
> Apr 22 20:39:54 Sensor 3 C: 18.88 F: 65.97
> Apr 22 20:39:55 Sensor 4 C: 17.44 F: 63.39 H: 47%
> Apr 22 20:39:55 Sensor 5 #0 80
> Apr 22 20:39:55 Sensor 5 #1 79
>
> I've been trying to use the -o 2 format for export purposes, but this
> does not show the humidity readings. Hence my original question
> regarding the need to run both digitemp three times (first with -a -o
> 2), then to read the humidity value of sensor 1, then the humidity
> value of sensor 4.
>
> [root@webmail digitemp-3.6.0]# ./digitemp_DS9097U -a -o 2
> DigiTemp v3.5.0 Copyright 1996-2007 by Brian C. Lane

> GNU Public License v2.0 -http://www.digitemp.com

> 0       8.16    20.81   18.94   17.47   80      79
>
> Is there an easy way to get a tab delimited file containing all
> readings (temperature, humidity, counter).

- Custom Formatting won't work?
- Note that the MAN Page (on my system) indicates that: 'When the -o2
or -o3 log options are used the attached DS2438's temperatures will be
output WITHOUT THE HUMUDITY."
- I suggest using a Configuration File - use the '-i' switch to create
then copy/edit and specify in your automated setup
i.e. (your default file will, of course, be different from the
below... Also, I don't currently have a 1-Wire humidity sensor - the
HUM_FORMAT string is, I think, the default...)
------------
TTY /dev/ttyUSB0
LOG /path_to_log_file/temps.log
READ_TIME 750
LOG_TYPE 1
LOG_FORMAT "%b %d %H:%M:%S Sensor %s C: %.2C F: %.2F | %N | %s | %R"
CNT_FORMAT "%s | %R | %C | %F | %N"
HUM_FORMAT "%b %d %H:%M:%S Sensor %s C: %.2C F: %.2F H: %h%%"
SENSORS 43
ROM 0 0x28 0xE0 0x00 0xCE 0x02 0x00 0x00 0x00
ROM 1 0x28 0xE0 0x00 0xCE 0x02 0x00 0x00 0x00
ROM 2 0x28 0xD0 0x00 0xCE 0x02 0x00 0x00 0x00
...

:)
Dale



:)
Dale