[weewx-user] Re: Calculate ET using fineoffset WH1080 and manual rain recording

[Glen Napthali]

Previously I had the  PWS mounted on a star picket and the whole thing was 
shaking around quite a lot. In August I made a bracket from some gal 
C-section, and screwed it to a fence H-brace cross rail with the tipping 
bucket screwed to the gal. A few drain holes in the gal and it seems much 
better. I don't get pseudo-rain anymore unless it is really windy (70km/h) 
and in a specific direction.

The tipping bucket seems to under report by at least 50%, I added a 
StdCalibrate function over the weekend to help correct the error. I 
probably need to do a spider check to see if that is part of the trouble. 
The manual guage is good confirmation.

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[weewx-user] Calculate ET using fineoffset WH1080 and manual rain recording

[Greg from Oz]

I have the same weather station and the wind affects the rain gauge so I moved 
the rain gauge further down the pole I have it on and it has been good ever 
since.
The pipe was wobbling in the wind and was moving the tipper.
Don't know if yours it set up the same.

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[weewx-user] Weewx "off line"

[Teva MERVIN]

Hello.
I have a problem that I can not identify.
It happens at least once a day, and I have to restart weewx.
Do you have ideas?

root@Nas:~# service weewx status
● weewx.service - LSB: weewx weather system 
  Loaded: loaded (/etc/init.d/weewx; generated) 
  Active: active (exited) since Sun 2019-11-17 19:09:21 +11; 1 day 21h ago 
Docs: man:systemd-sysv-generator(8) 
 Process: 2094 ExecStart=/etc/init.d/weewx start (code=exited, 
status=0/SUCCESS) 

nov. 19 13:34:26 Nas weewx[2110]: File 
"/usr/share/weewx/weewx/engine.py", line 601, in new_archive_record 
nov. 19 13:34:26 Nas weewx[2110]:  
 dbmanager.addRecord(event.record, accumulator=self.old_accumulator) 
nov. 19 13:34:26 Nas weewx[2110]: File 
"/usr/share/weewx/weewx/manager.py", line 246, in addRecord 
nov. 19 13:34:26 Nas weewx[2110]:  
 self._addSingleRecord(record, cursor, log_level) 
nov. 19 13:34:26 Nas weewx[2110]: File 
"/usr/share/weewx/weewx/manager.py", line 1212, in _addSingleRecord 
nov. 19 13:34:26 Nas weewx[2110]:   _weight = 
self._calc_weight(record) 
nov. 19 13:34:26 Nas weewx[2110]: File 
"/usr/share/weewx/weewx/manager.py", line 1582, in _calc_weight 
nov. 19 13:34:26 Nas weewx[2110]:   raise 
ValueError("Non-positive value for record field 'interval': %s" % 
(record['interval'], )) 
nov. 19 13:34:26 Nas weewx[2110]:   ValueError: Non-positive value 
for record field 'interval': 0 
nov. 19 13:34:26 Nas weewx[2110]:   Exiting.

Thank you.

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[weewx-user] Re: Weewx on RPi Zero

[Susan Mackay]

I use an RPi Zero W for Weewx and Nginx as well.
I use systemd to manage it and have pre-requisites that the 'ntp.service' 
and 'time-sync.service' have completed before it will start.
Susan

On Monday, November 18, 2019 at 11:52:38 PM UTC+11, David VE3STI wrote:
>
> The problems occur during the startup, before the RPi sets its clock from 
> the Internet, and appear to be issues with the RPi and the Davis equipment 
> disagreeing on the time and getting muddled. It has been the topic of much 
> discussion and you can read the gory details in the wiki. I won't go into 
> the details here. If you have a UPS and rarely reboot, it becomes almost a 
> non-issue.
>
> David
>

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Re: [weewx-user] OWFS with Dallas Semi hardware thru an I2C AB Electronics

[Glenn McKechnie]

> I am now seeing data  on the index.html file being populated.

Excellent

> Now I need to calibrate the wind
> direction, and get my rain gauge all calibrated which is indeed the
> original Dallas Semiconductor rain gauge (before AAG, but I believe the
> same type.

Your sensor_map entry for rain will also drop the counters.ALL suffix.
The script uses counter.B as the default.

rain = /uncached/1D.81B5/

If needed, you can pin it down by using the following commands to run
owfs.py directly.
One of them will be right...

 sudo PYTHONPATH=bin python bin/user/owfs.py --reading
/1D.81B5/Counter.A

 sudo PYTHONPATH=bin python bin/user/owfs.py --reading
/1D.81B5/Counter.B


-- 


Cheers
 Glenn

rorpi - read only raspberry pi & various weewx addons
https://github.com/glennmckechnie

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Re: [weewx-user] Weewx on RPi Zero

[vince]

On Monday, November 18, 2019 at 6:39:32 AM UTC-8, Thomas Keffer wrote:

> Upgrading operating systems can definitely help. Upgrading my OS from 
> Debian 9.8 to 9.11 fixed my problem.
>
>
>
FWIW, I recently instrumented my 4.0b1 pi4 running current Raspbian based 
on 10.0 and see 'no' memory leak in almost a day of uptime. 

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Re: [weewx-user] Weewx on RPi Zero

[Thomas Keffer]

Yes. See PR #467 , to appear in
V4.0.

-tk

On Mon, Nov 18, 2019 at 9:26 AM Leon Shaner  wrote:

> Tom,
>
> Did I also see a reference to refactoring some SQL connection code, also
> having a positive effect on the memory leak?
>
> Regards,
> \Leon
>
> Thomas Keffer wrote:
>
> Only issue is the rampant memory leak plaguing many will manifest more
>> frequently on a RPI Zero W because it only has 512MB RAM.  Hopefully the
>> leak will be fixed soon.
>>
>
> Just for the record: the leak is in the underlying Debian drivers or,
> possibly, Python 2.7 --- not in WeeWX.
>
> Upgrading operating systems can definitely help. Upgrading my OS from
> Debian 9.8 to 9.11 fixed my problem.
>
> -tk
> --
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> 
> .
>
>
>
> -- l...@isylum.org - Dearborn, Michigan
>
>

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Re: [weewx-user] Weewx on RPi Zero

[Leon Shaner]

Tom,

Did I also see a reference to refactoring some SQL connection code, also 
having a positive effect on the memory leak?


Regards,
\Leon

Thomas Keffer wrote:


Only issue is the rampant memory leak plaguing many will manifest
more frequently on a RPI Zero W because it only has 512MB RAM. 
Hopefully the leak will be fixed soon.


Just for the record: the leak is in the underlying Debian drivers or, 
possibly, Python 2.7 --- not in WeeWX.


Upgrading operating systems can definitely help. Upgrading my OS from 
Debian 9.8 to 9.11 fixed my problem.


-tk
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Re: [weewx-user] OWFS with Dallas Semi hardware thru an I2C AB Electronics

[Bret Craytor]

On Sunday, November 17, 2019 at 10:25:50 PM UTC-6, Glenn McKechnie wrote:
>
> On 18/11/2019, Bret Craytor > wrote: 
>
> [...] 
>
> >   Weewx version 3.9.2 detected. 
> > 
> > Station info 
> >   Station type: OWFS 
> >   Driver:   user.owfs 
> > 
> > Driver info 
> > [OWFS] 
> > interface = /dev/i2c-1 
> > driver = user.owfs 
> > [[sensor_type]] 
> > outTemp = /uncached/10.A3653C00/temperature 
> > inTemp = /uncached/10.39F435030800/temperature 
> > windDir = /uncached/12.5EAB0D00/ 
> > windSpeed = /uncached/1D.D0110100/counters.ALL 
> > rain = /uncached/1D.81B5/counters.ALL 
> > 
> > [[sensor_map]] 
> > 
> > Currently installed extensions 
> > Extension NameVersion   Description 
> > owfs  0.21  driver for one-wire devices connected via 
> owfs 
>
> Ah Ha... 
>
> In the above output, ie within weewx.conf, you have your sensor mapping 
> listed under sensor_type, and no sensor_type entries. 
>
>
> If you change the sensor_type heading to [[sensor_map]], that should fix 
> the bulk of it. 
>
> Additionally, unless you know otherwise (ie you've changed the hardware 
> connections) windSpeed can drop the counters.ALL as your new sensor_map 
> will allocate it as counter.A (its default within owfs.py) 
>
> windSpeed = /uncached/1D.D0110100 
>
>
> As for what should go under the now empty [[sensor_type]] section, try 
> the following... 
>
>[[sensor_type]] 
>windDir = aag_windvane 
>windSpeed = aag_windspeed 
>rain = rainwise_bucket 
>
> That's based on my memory, which recalls that you are running an 
> original AAG weather station? 
>
> I'm not sure what the AAG rain gauge would default to, I didn't find a 
> mention of anything specific in owfs.py but a rainwise_bucket returns 
> 0.1" per tip, which owfs.py converts to 0.0254 cm. Once it's working 
> you can tweak its output. 
>
>
>
> > 
> > 
> > 
> ##
>  
>
> > 
> > #   This section controls the origin of derived values. 
> > 
> > [StdWXCalculate] 
> > 
> > [[Calculations]] 
> > # How to calculate derived quantities.  Possible values are: 
> > #  hardware- use the value provided by hardware 
> > #  software- use the value calculated by weewx 
> > #  prefer_hardware - use value provide by hardware if available, 
> > #  otherwise use value calculated by weewx 
> > 
> > pressure = prefer_hardware 
> > barometer = prefer_hardware 
> > altimeter = prefer_hardware 
> > windchill = prefer_hardware 
> > heatindex = prefer_hardware 
> > dewpoint = prefer_hardware 
> > inDewpoint = prefer_hardware 
> > rainRate = prefer_hardware 
> > 
> > 
> ##
>  
>
>
> With the exception of the pressure related values (there is/was a 1-wire 
> pressure sensor) these will need to become prefer_software. The 1-wire 
> sensors will only return the sensor value, the driver adjusts some 
> values but it's safe to assume that no calculations are performed. 
> Then again, you probably require a humidity sensor to calculate most of 
> those so it's possibly mute. 
>
> Don't forget. If you run weewx directly from the command line you should 
> see LOOP values spat out at every 30 seconds or so. This can quickly 
> tell you what is and isn't responding. 
>
> python /home/weewx/bin/weewxd /home/weewx/weewx.conf 
>
> You may need to tweak that command for your setup 
>
> -- 
>
>
> Cheers 
>  Glenn 
>
> rorpi - read only raspberry pi & various weewx addons 
> https://github.com/glennmckechnie 
>

Glenn,

Thank you so much!  Your imput has been invaluable!  I am now seeing data 
on the index.html file being populated.  Now I need to calibrate the wind 
direction, and get my rain gauge all calibrated which is indeed the 
original Dallas Semiconductor rain gauge (before AAG, but I believe the 
same type.  

Bless you for all your help!

Sincerely,

Bret
 

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Re: [weewx-user] Weewx on RPi Zero

[Thomas Keffer]

>
> Only issue is the rampant memory leak plaguing many will manifest more
> frequently on a RPI Zero W because it only has 512MB RAM.  Hopefully the
> leak will be fixed soon.
>

Just for the record: the leak is in the underlying Debian drivers or,
possibly, Python 2.7 --- not in WeeWX.

Upgrading operating systems can definitely help. Upgrading my OS from
Debian 9.8 to 9.11 fixed my problem.

-tk

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Re: [weewx-user] Weewx on RPi Zero

[Leon Shaner]

Runs great on my RPI Zero W(H).
Only issue is the rampant memory leak plaguing many will manifest more 
frequently on a RPI Zero W because it only has 512MB RAM.  Hopefully the leak 
will be fixed soon.

Regards,
\Leon
--
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> On Nov 18, 2019, at 12:09 AM, peter  wrote:
> 
> Does weewx run OK on RPi Zero W? I want to connect a Vantage Envoy to the 
> USB-on-the-go port.
> Thanks!
> 
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[weewx-user] Re: Weewx on RPi Zero

[David VE3STI]

The problems occur during the startup, before the RPi sets its clock from 
the Internet, and appear to be issues with the RPi and the Davis equipment 
disagreeing on the time and getting muddled. It has been the topic of much 
discussion and you can read the gory details in the wiki. I won't go into 
the details here. If you have a UPS and rarely reboot, it becomes almost a 
non-issue.

David

On Monday, 18 November 2019 07:32:18 UTC-5, peter wrote:
>
> Thank you both for your answers, I'm sorry for my ignorance but by RTC you 
> meant the realtime clock, or?
> Maybe I'm wrong but my Pi zero w holds the time quite well. The one I 
> intend to install for the Vantage station is going to be on the UPS anyway 
> so no reboots are foreseen (hopefully).
> I have a standard RPi 3 working with Vantage Vue for months and also one 
> with WeatherFlow with no issues.
>
> I'll definitely check the wiki pages once more (y).
>
> Thanks.
>
> Dne ponedeljek, 18. november 2019 13.24.08 UTC+1 je oseba David VE3STI 
> napisala:
>>
>> I have been running WeeWX on an RPi Zero W connected to my Davis Vantage 
>> Vue for a couple of years. It is plenty fast enough for the modest 
>> processing requirements of WeeWX and can also run a web server for local 
>> network viewing of data. (I use NGINX.) It is very miserly on power (50-70 
>> mA at 5V, as I recall) and has generally been reliable. The RTC issue has 
>> been an annoyance but I think this affects all RPi models and is not 
>> specifically a RPi Zero W issue. I eventually solved/avoided the problem 
>> with a UPS.
>>
>> Do read the wiki pages.
>>
>> David
>>
>> On Monday, 18 November 2019 00:09:47 UTC-5, peter wrote:
>>>
>>> Does weewx run OK on RPi Zero W? I want to connect a Vantage Envoy to 
>>> the USB-on-the-go port.
>>> Thanks!
>>
>>

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[weewx-user] Re: daily graph with point only

[Inod]

Hi
i didn't check , but now yes , i have changed setup
Thank for your quick response
Remy

Le lundi 18 novembre 2019 13:15:32 UTC+1, Andrew Milner a écrit :
>
> Have you checked 'dots in the plots' in the user guide??
>
> http://weewx.com/docs/usersguide.htm#dots_in_plots
>
>
>
> On Monday, 18 November 2019 13:42:11 UTC+2, Inod wrote:
>>
>>
>> Hi 
>>
>> I just installed weewx on a new server wih a driver vantage , the first 
>> graphs that are displayed are composed only of point for the daly report.
>> Week and Month are normal
>>
>>
>> Which was not the case with the simulator.
>> Is this normal ?
>>
>> Ubuntu 18.04
>> Weewx 3.9.2
>>
>> thank for your help
>>
>> [image: graph01.png]
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> [image: graph02.png]
>>
>>

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[weewx-user] Re: Weewx on RPi Zero

[peter]

Thank you both for your answers, I'm sorry for my ignorance but by RTC you 
meant the realtime clock, or?
Maybe I'm wrong but my Pi zero w holds the time quite well. The one I 
intend to install for the Vantage station is going to be on the UPS anyway 
so no reboots are foreseen (hopefully).
I have a standard RPi 3 working with Vantage Vue for months and also one 
with WeatherFlow with no issues.

I'll definitely check the wiki pages once more (y).

Thanks.

Dne ponedeljek, 18. november 2019 13.24.08 UTC+1 je oseba David VE3STI 
napisala:
>
> I have been running WeeWX on an RPi Zero W connected to my Davis Vantage 
> Vue for a couple of years. It is plenty fast enough for the modest 
> processing requirements of WeeWX and can also run a web server for local 
> network viewing of data. (I use NGINX.) It is very miserly on power (50-70 
> mA at 5V, as I recall) and has generally been reliable. The RTC issue has 
> been an annoyance but I think this affects all RPi models and is not 
> specifically a RPi Zero W issue. I eventually solved/avoided the problem 
> with a UPS.
>
> Do read the wiki pages.
>
> David
>
> On Monday, 18 November 2019 00:09:47 UTC-5, peter wrote:
>>
>> Does weewx run OK on RPi Zero W? I want to connect a Vantage Envoy to the 
>> USB-on-the-go port.
>> Thanks!
>
>

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[weewx-user] Re: Weewx on RPi Zero

[David VE3STI]

I have been running WeeWX on an RPi Zero W connected to my Davis Vantage 
Vue for a couple of years. It is plenty fast enough for the modest 
processing requirements of WeeWX and can also run a web server for local 
network viewing of data. (I use NGINX.) It is very miserly on power (50-70 
mA at 5V, as I recall) and has generally been reliable. The RTC issue has 
been an annoyance but I think this affects all RPi models and is not 
specifically a RPi Zero W issue. I eventually solved/avoided the problem 
with a UPS.

Do read the wiki pages.

David

On Monday, 18 November 2019 00:09:47 UTC-5, peter wrote:
>
> Does weewx run OK on RPi Zero W? I want to connect a Vantage Envoy to the 
> USB-on-the-go port.
> Thanks!

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[weewx-user] Re: daily graph with point only

[Andrew Milner]

Have you checked 'dots in the plots' in the user guide??

http://weewx.com/docs/usersguide.htm#dots_in_plots



On Monday, 18 November 2019 13:42:11 UTC+2, Inod wrote:
>
>
> Hi 
>
> I just installed weewx on a new server wih a driver vantage , the first 
> graphs that are displayed are composed only of point for the daly report.
> Week and Month are normal
>
>
> Which was not the case with the simulator.
> Is this normal ?
>
> Ubuntu 18.04
> Weewx 3.9.2
>
> thank for your help
>
> [image: graph01.png]
>
>
>
>
>
>
>
>
>
>
>
> [image: graph02.png]
>
>

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