Re: [weewx-user] Re: Acurite not so accurate on sunny days

[Craig Thom]

Maybe my fan isn't running, since I've got the dual solar panel version. 
 I'll figure it out Sunday.

The sensor on my front porch must be getting some light around 6 pm, 
because it gets too high then.  Maybe I should figure out a way to get 
weewx to use the lower of the two temperature sensors to eliminate the sun 
problem.

On Thursday, April 13, 2017 at 7:32:27 PM UTC-4, Andy wrote:
>
> I bought the cover with the dual solar panels to help with the hot sunny 
> days in the Sacramento area. First dual panel cover failed and they sent me 
> an entire 5n1 with a dual solar panel after this post 
> https://support.acurite.com/acurite/topics/outside-temp-to-high
>
> The dual solar panel keeps the 5n1 closer to ambient, but not quite close 
> enough.  I am also using the SDR and a Honeywell sensor from Craigslist 
> free section.
>

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Re: [weewx-user] Re: Acurite not so accurate on sunny days

[Andy]

I bought the cover with the dual solar panels to help with the hot sunny days 
in the Sacramento area. First dual panel cover failed and they sent me an 
entire 5n1 with a dual solar panel after this post 
https://support.acurite.com/acurite/topics/outside-temp-to-high

The dual solar panel keeps the 5n1 closer to ambient, but not quite close 
enough.  I am also using the SDR and a Honeywell sensor from Craigslist free 
section.

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Re: [weewx-user] Re: Acurite not so accurate on sunny days

[Tony Turner]

Thanks Tom,
I'll spend some time this weekend and fashion some sort of shade for the 
unit. The temperature sensor is under unit supposedly in the shade with a 
fan that pulls air by it 5-1 units are crazy lol!. 

The Ambient Weather stuff looks pretty good and very reasonable but I'm 
sure they have their issues also.

Tony

On Wednesday, April 12, 2017 at 8:34:34 PM UTC-5, Tom Keffer wrote:
>
> I wouldn't give up on your Acurite so quickly. In its price range, it's 
> actually pretty good.
>
> First, make sure your fan is working. Check it during a weekend, or ask a 
> neighbor/wife to check it.
>
> Second, make some sort of shade cover for it. Depending on the shape of 
> the sensor, a white yogurt container with ventilation holes might work. Or, 
> find something else that does fit.
>
> Third, take a look at the WU siting guide 
> . It 
> has some good tips.
>
> -tk
>
>

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[weewx-user] Re: Raspberry Pi / Interface Board

[vince]

On Thursday, April 13, 2017 at 7:23:11 AM UTC-7, Francisco Puig wrote:
>
> I'm trying this interface with an raspberry pi but even that I see the 
> data on the interface coming from the weather station the weewx doesn't 
> work. Anybody has tried something similar to this?
>
>
>
Try searching the group for "TTL"
 

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[weewx-user] Raspberry Pi / Interface Board

[Francisco Puig]

I'm trying this interface with an raspberry pi but even that I see the data 
on the interface coming from the weather station the weewx doesn't work. 
Anybody has tried something similar to this?

http://www.ebay.com/itm/152373970335?_trksid=p2060353.m2749.l2649=STRK%3AMEBIDX%3AIT

Thanks.

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Re: [weewx-user] Re: FineOffsetUSB lockup - Possible solution for unattended reset

[Alexandros Bagos]

I used Matthew's implementation as it is already in the FO driver. I got
the values I needed to use from the output of "lsusb -v".

I didn't try to reset the station with the external application (bug-ctrl),
but can try that too.

Alex.

2017-04-13 15:56 GMT+03:00 Aldo Bord :

>
>
> Il giorno mercoledì 12 aprile 2017 16:09:40 UTC+2, Alexandros Bagos ha
> scritto:
>>
>> Yes, the station had no batteries. I was also hoping it would work
>> without having to reboot te pi.
>>
>
> Yes, it should work this way, there is no need to reboot the pi, yo ujust
> need to power cycle the weather station.
>
>
>> I don't know if this makes any difference, but I have a WH-3080.
>>
>
> I also has a 3080, connected to a USB hub with port switching. The reset
> procedure works, but I would like to get rid of the USB hub and connect the
> weather station directly to my new Pi3.
>
>
>> It was a little confusing because the first time it did seem to work (I
>> was there when it happened), but every other time it didn't manage to reset
>> the station, although I could see in the logs that it was constantly trying.
>>
>
> I think something is not working in the power cut procedure.
> How did you implemented it ? Using hub-ctrl ?
>
> As Matthew suggested, it would be great to implement it in the FO driver,
> or even better as a class... any python programmer around willing to add
> this function ?
>
> Aldo
>
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Re: [weewx-user] Re: FineOffsetUSB lockup - Possible solution for unattended reset

[Aldo Bord]

Il giorno mercoledì 12 aprile 2017 16:09:40 UTC+2, Alexandros Bagos ha 
scritto:
>
> Yes, the station had no batteries. I was also hoping it would work without 
> having to reboot te pi.
>
 
Yes, it should work this way, there is no need to reboot the pi, yo ujust 
need to power cycle the weather station.  
 

> I don't know if this makes any difference, but I have a WH-3080. 
>

I also has a 3080, connected to a USB hub with port switching. The reset 
procedure works, but I would like to get rid of the USB hub and connect the 
weather station directly to my new Pi3. 
 

> It was a little confusing because the first time it did seem to work (I 
> was there when it happened), but every other time it didn't manage to reset 
> the station, although I could see in the logs that it was constantly trying.
>

I think something is not working in the power cut procedure. 
How did you implemented it ? Using hub-ctrl ?

As Matthew suggested, it would be great to implement it in the FO driver, 
or even better as a class... any python programmer around willing to add 
this function ? 

Aldo

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Re: [weewx-user] Re: Amending spurious readings in the database

[Glenn McKechnie]

As someone who has problems with the occasional(scoff!) spike value; I
highly recommend Darryn's - beta - qc.py replacement (links below). It may
not fit your comfort level, and I don't think you could use it for rain or
any other instrument (wind?) that can have spikes as a matter of course,
but then again...

As you're aware, if you have failing hardware or similar underlying
problems then it's not necessarily the preferred solution - but when you
consider that an errant value can be caused by many things, and have way
more impact on the historical data,  database, graphs than it should; then
ignoring them is a valid option.
I get spikes in my rain values, but don't use Darryn's qc.py for them -
barometer and outside humidity though? It's been absolutely brilliant for
those sensors. I'm working on replacing them, as something is amiss there,
but the qc spike detection has allowed me to spend some valuable time
finding and isolating the cause and determining my options, the best way to
go for my setup. In the meantime, I still have a working system with the
outliers banished to the bit bucket.

If you're willing and able to replace the stock weewx qc.py with the
qc-spike.py of Darryn's, and spend a bit of time understanding it and
tweaking it to suit your circumstances, it could repay you (in fact:
anyone) with some nice, clean data.

As Gary says, the StdQC service is fairly basic, but I feel this qc-spike
addition enhances that service very nicely, and it's not _too_ complicated
to implement.

Links to Darryn's qc spike posts...
https://groups.google.com/d/topic/weewx-user/p6iGhRUxxa4/discussion
https://groups.google.com/d/topic/weewx-development/vfD9WfHLSaI/discussion


Cheers
 Glenn

rorpi - read only raspberry pi + weewx: now with scripts


On 13 April 2017 at 18:03, Auchtermuchty Weather 
wrote:

> Thanks, the backfill in progress and I have a feeling my weather station
> might have problems as it's clear the erroneous readings have greatly
> increased.
>
> I have a question about the QC.  It's clear what the temperature values
> (for example) should be, but rain is a cumulative thing, so over what
> period of time?  I'm guessing between readings, but to me that doesn't make
> sense with a default QC value of 60 inches!
>
>
> On Wednesday, 12 April 2017 09:20:06 UTC+1, Auchtermuchty Weather wrote:
>
>> I am getting the odd spike in my readings, for example:
>>
>>
>>TEMPERATURE (C), RAIN (mm), WIND SPEED (knots)
>>
>>  HEAT   COOL AVG
>>   MEAN   DEGDEG
>> WIND   DOM
>> DAY   TEMP   HIGH   TIMELOW   TIME   DAYS   DAYS   RAIN  SPEED
>> HIGH   TIMEDIR
>> 
>> ---
>> 013.5   13.1  11:12   -1.1  04:31   14.80.00.00.46.0
>> 07:19 22
>> 024.3   13.4  05:56   -0.7  00:02   14.00.0  148.81.8   44.9
>> 05:56 25
>> 034.3   11.9  11:31   -2.3  07:56   14.00.05.10.78.6
>> 22:43191
>> 045.26.7  15:304.0  08:30   13.20.09.90.7   12.6
>> 09:50207
>> 055.6   10.3  15:25   -0.2  23:51   12.70.03.60.03.3
>> 07:37108
>> 065.2   16.7  14:55   -0.3  01:18   13.10.01.20.1   43.5
>> 15:34130
>> 075.1   12.4  11:19  -15.1  08:56   13.20.0  807.90.48.0
>> 16:15 77
>> 087.3   13.3  11:314.8  07:30   11.00.02.41.7   19.2
>> 11:44360
>> 098.0   14.3  14:262.7  23:51   10.30.0  271.81.2   11.9
>> 08:48345
>> 106.0   10.2  16:021.2  02:30   12.40.0   76.80.1   26.4
>> 07:35249
>> 11   10.2   16.3  14:02  -38.0  15:328.10.0  625.50.6  128.9
>> 06:15 29
>>
>>
>> There is no way there has been a wind speed of 128.9 knots!
>>
>> I can't remember how to fix these, nor can I remember if there is a setup
>> somewhere to reject readings outside the parameters.
>>
>> --
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[weewx-user] Re: Amending spurious readings in the database

[gjr80]

The StdQC service is fairly basic and applies a simple max min limit to both 
loop packets and archive records. So the rain max min value is per loop period 
or archive interval. Yes, 60 inches as a default is unrealistic, I thought I 
read something about changing it but I could be wrong. Will make sure it is 
looked at for the next release.

Gary

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[weewx-user] Re: Amending spurious readings in the database

[Auchtermuchty Weather]

Thanks, the backfill in progress and I have a feeling my weather station 
might have problems as it's clear the erroneous readings have greatly 
increased.

I have a question about the QC.  It's clear what the temperature values 
(for example) should be, but rain is a cumulative thing, so over what 
period of time?  I'm guessing between readings, but to me that doesn't make 
sense with a default QC value of 60 inches!


On Wednesday, 12 April 2017 09:20:06 UTC+1, Auchtermuchty Weather wrote:

> I am getting the odd spike in my readings, for example:
>
>
>TEMPERATURE (C), RAIN (mm), WIND SPEED (knots)
>
>  HEAT   COOL AVG
>   MEAN   DEGDEG  
> WIND   DOM
> DAY   TEMP   HIGH   TIMELOW   TIME   DAYS   DAYS   RAIN  SPEED   
> HIGH   TIMEDIR
>
> ---
> 013.5   13.1  11:12   -1.1  04:31   14.80.00.00.46.0  
> 07:19 22
> 024.3   13.4  05:56   -0.7  00:02   14.00.0  148.81.8   44.9  
> 05:56 25
> 034.3   11.9  11:31   -2.3  07:56   14.00.05.10.78.6  
> 22:43191
> 045.26.7  15:304.0  08:30   13.20.09.90.7   12.6  
> 09:50207
> 055.6   10.3  15:25   -0.2  23:51   12.70.03.60.03.3  
> 07:37108
> 065.2   16.7  14:55   -0.3  01:18   13.10.01.20.1   43.5  
> 15:34130
> 075.1   12.4  11:19  -15.1  08:56   13.20.0  807.90.48.0  
> 16:15 77
> 087.3   13.3  11:314.8  07:30   11.00.02.41.7   19.2  
> 11:44360
> 098.0   14.3  14:262.7  23:51   10.30.0  271.81.2   11.9  
> 08:48345
> 106.0   10.2  16:021.2  02:30   12.40.0   76.80.1   26.4  
> 07:35249
> 11   10.2   16.3  14:02  -38.0  15:328.10.0  625.50.6  128.9  
> 06:15 29
>
>
> There is no way there has been a wind speed of 128.9 knots!
>
> I can't remember how to fix these, nor can I remember if there is a setup 
> somewhere to reject readings outside the parameters.
>
>

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