Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Thanks Les, I will give this a go.  Will be a couple days though before I 
can get to it.  I'll report my findings.

On Thursday, February 20, 2020 at 2:09:44 PM UTC-8, ln77 wrote:
>
> JD said that he “suspects” that would be the right change.  It would help 
> if you tested it, but be prepared for it not to work or break the driver. 
>  Save the original version of the file, and restart weewx after changing it 
> in order to load the new version.
>
> The location of the driver can depend on the type of OS and how you 
> installed weewx.  On my raspberry pi, it 
> is /usr/share/weewx/weewx/drivers/ws28xx.py.
>
>   -Les
>
>
>
> On 20 Feb 2020, at 13:31, Dan Blanchard > 
> wrote:
>
> I was under the impression that what JD wrote was a change I can make to 
> the driver.  If so, how can I access the driver to modify it?
>
> On Thursday, February 20, 2020 at 12:39:43 AM UTC-8, ln77 wrote:
>>
>> I thought your questions were answered: what you’ve done is a workaround. 
>> Fundamentally, it’s not a limitation of the LaCrosse hardware, it’s a bug 
>> in the driver.  
>>
>>   -Les
>>
>>
>>
>> On 19 Feb 2020, at 12:05, Dan Blanchard  wrote:
>>
>> Where did you all go?  I was hoping for some comments on my last post.  
>> Does everything I state seem correct?
>>
>> On Monday, February 17, 2020 at 8:20:34 AM UTC-8, Dan Blanchard wrote:
>>>
>>> OK guys, thanks for all the help on this.  Jerry, I assume that the info 
>>> below is in the driver for my WS-28xx and if that is the case, where is 
>>> that driver located?  
>>>
>>> Next, I want to clarify something... I have used the calculator at 
>>> http://www.csgnetwork.com/barcorrecthcalc.html to set my altitude 
>>> (2,320 ft.) and an observed pressure of 30.16 inHg as reported for my area (
>>> https://tinyurl.com/yx65ckcm).  This gives me an adjustment of -2.43 so 
>>> I have set my station pressure to 27.73 inHg. This is now reporting 30.35 
>>> inHg barometer reading at Weather Underground (WU).  Although this is 
>>> working, I feel as if it a work-around but maybe it is just a limitation of 
>>> my station?  Thoughts...
>>>
>>> On Sunday, February 16, 2020 at 9:44:46 PM UTC-8, J D wrote:
>>>>
>>>> Hi,
>>>> I am using the ws23xx driver on ws2316 hardware and this driver sends 
>>>> absolute pressure to weewx in the packet as "pressure" ..
>>>> The ws28xx hardware sends relative pressure and the ws28xx driver also 
>>>> sends the reading to weewx in the packet as pressure. See below
>>>>
>>>> packet['*pressure*']= get_datum_diff(data._PressureRelative_hPa,
>>>>   
>>>>  CWeatherTraits.PressureNP(),
>>>>   
>>>>  CWeatherTraits.PressureOFL())
>>>>
>>>> I suspect the code should read.
>>>> packet['*barometer*']= get_datum_diff(data._PressureRelative_hPa,
>>>>   
>>>>  CWeatherTraits.PressureNP(),
>>>>   
>>>>  CWeatherTraits.PressureOFL())
>>>> Or you could just change the altitude of the station as Andrew suggest.
>>>>
>>>> Jerry
>>>>
>>>> On Sunday, February 9, 2020 at 4:36:51 PM UTC-7, Dan Blanchard wrote:
>>>>>
>>>>> I've been running my weather station on weeWX for 2 days now after 
>>>>> switching from a PC based solution for the past several years.  I noticed 
>>>>> this problem after noticing that my station is no longer showing on the 
>>>>> WeatherUnderground (WU) maps.  The data is still showing for my site on 
>>>>> WU 
>>>>> though (https://www.wunderground.com/dashboard/pws/KIDPOSTF43)
>>>>>
>>>>> Everything has been going fine except I am currently having a problem 
>>>>> with data inaccuracies.  All the data seems correct except the barometer 
>>>>> reading.  The reading on my hardware is currently 30.30 and weeWX is 
>>>>> showing 33.093 which is what is reporting to WU.
>>>>>
>>>>> Can anyone please shed some light on this issue?  I've attached the 
>>>>> syslog for reference.  Please let me know if there is anything else I can 
>>>>> provide to help with this situation. If the solution requires changes in 
>>>>> the configuration file

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

I was under the impression that what JD wrote was a change I can make to 
the driver.  If so, how can I access the driver to modify it?

On Thursday, February 20, 2020 at 12:39:43 AM UTC-8, ln77 wrote:
>
> I thought your questions were answered: what you’ve done is a workaround. 
> Fundamentally, it’s not a limitation of the LaCrosse hardware, it’s a bug 
> in the driver.  
>
>   -Les
>
>
>
> On 19 Feb 2020, at 12:05, Dan Blanchard > 
> wrote:
>
> Where did you all go?  I was hoping for some comments on my last post.  
> Does everything I state seem correct?
>
> On Monday, February 17, 2020 at 8:20:34 AM UTC-8, Dan Blanchard wrote:
>>
>> OK guys, thanks for all the help on this.  Jerry, I assume that the info 
>> below is in the driver for my WS-28xx and if that is the case, where is 
>> that driver located?  
>>
>> Next, I want to clarify something... I have used the calculator at 
>> http://www.csgnetwork.com/barcorrecthcalc.html to set my altitude (2,320 
>> ft.) and an observed pressure of 30.16 inHg as reported for my area (
>> https://tinyurl.com/yx65ckcm).  This gives me an adjustment of -2.43 so 
>> I have set my station pressure to 27.73 inHg. This is now reporting 30.35 
>> inHg barometer reading at Weather Underground (WU).  Although this is 
>> working, I feel as if it a work-around but maybe it is just a limitation of 
>> my station?  Thoughts...
>>
>> On Sunday, February 16, 2020 at 9:44:46 PM UTC-8, J D wrote:
>>>
>>> Hi,
>>> I am using the ws23xx driver on ws2316 hardware and this driver sends 
>>> absolute pressure to weewx in the packet as "pressure" ..
>>> The ws28xx hardware sends relative pressure and the ws28xx driver also 
>>> sends the reading to weewx in the packet as pressure. See below
>>>
>>> packet['*pressure*']= get_datum_diff(data._PressureRelative_hPa,
>>>   
>>>  CWeatherTraits.PressureNP(),
>>>   
>>>  CWeatherTraits.PressureOFL())
>>>
>>> I suspect the code should read.
>>> packet['*barometer*']= get_datum_diff(data._PressureRelative_hPa,
>>>       
>>>  CWeatherTraits.PressureNP(),
>>>   
>>>  CWeatherTraits.PressureOFL())
>>> Or you could just change the altitude of the station as Andrew suggest.
>>>
>>> Jerry
>>>
>>> On Sunday, February 9, 2020 at 4:36:51 PM UTC-7, Dan Blanchard wrote:
>>>>
>>>> I've been running my weather station on weeWX for 2 days now after 
>>>> switching from a PC based solution for the past several years.  I noticed 
>>>> this problem after noticing that my station is no longer showing on the 
>>>> WeatherUnderground (WU) maps.  The data is still showing for my site on WU 
>>>> though (https://www.wunderground.com/dashboard/pws/KIDPOSTF43)
>>>>
>>>> Everything has been going fine except I am currently having a problem 
>>>> with data inaccuracies.  All the data seems correct except the barometer 
>>>> reading.  The reading on my hardware is currently 30.30 and weeWX is 
>>>> showing 33.093 which is what is reporting to WU.
>>>>
>>>> Can anyone please shed some light on this issue?  I've attached the 
>>>> syslog for reference.  Please let me know if there is anything else I can 
>>>> provide to help with this situation. If the solution requires changes in 
>>>> the configuration file, please be specific as I am still learning the 
>>>> Linux 
>>>> stuff.
>>>>
>>>> Thanks,
>>>>
>>>> Dan
>>>>
>>>>
>>>> Hardware: Lacrosse WS-2813
>>>>
>>>>
> -- 
> You received this message because you are subscribed to the Google Groups 
> "weewx-user" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to weewx...@googlegroups.com .
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/weewx-user/d026b7e2-1fb7-4e61-a715-8d48befd725c%40googlegroups.com
>  
> <https://groups.google.com/d/msgid/weewx-user/d026b7e2-1fb7-4e61-a715-8d48befd725c%40googlegroups.com?utm_medium=email_source=footer>
> .
>
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/775d8b96-7153-4f9d-bb8f-47ef5b005727%40googlegroups.com.

[weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Where did you all go?  I was hoping for some comments on my last post.  
Does everything I state seem correct?

On Monday, February 17, 2020 at 8:20:34 AM UTC-8, Dan Blanchard wrote:
>
> OK guys, thanks for all the help on this.  Jerry, I assume that the info 
> below is in the driver for my WS-28xx and if that is the case, where is 
> that driver located?  
>
> Next, I want to clarify something... I have used the calculator at 
> http://www.csgnetwork.com/barcorrecthcalc.html to set my altitude (2,320 
> ft.) and an observed pressure of 30.16 inHg as reported for my area (
> https://tinyurl.com/yx65ckcm).  This gives me an adjustment of -2.43 so I 
> have set my station pressure to 27.73 inHg. This is now reporting 30.35 
> inHg barometer reading at Weather Underground (WU).  Although this is 
> working, I feel as if it a work-around but maybe it is just a limitation of 
> my station?  Thoughts...
>
> On Sunday, February 16, 2020 at 9:44:46 PM UTC-8, J D wrote:
>>
>> Hi,
>> I am using the ws23xx driver on ws2316 hardware and this driver sends 
>> absolute pressure to weewx in the packet as "pressure" ..
>> The ws28xx hardware sends relative pressure and the ws28xx driver also 
>> sends the reading to weewx in the packet as pressure. See below
>>
>> packet['*pressure*']= get_datum_diff(data._PressureRelative_hPa,
>>   
>>  CWeatherTraits.PressureNP(),
>>   
>>  CWeatherTraits.PressureOFL())
>>
>> I suspect the code should read.
>> packet['*barometer*']= get_datum_diff(data._PressureRelative_hPa,
>>   
>>  CWeatherTraits.PressureNP(),
>>   
>>  CWeatherTraits.PressureOFL())
>> Or you could just change the altitude of the station as Andrew suggest.
>>
>> Jerry
>>
>> On Sunday, February 9, 2020 at 4:36:51 PM UTC-7, Dan Blanchard wrote:
>>>
>>> I've been running my weather station on weeWX for 2 days now after 
>>> switching from a PC based solution for the past several years.  I noticed 
>>> this problem after noticing that my station is no longer showing on the 
>>> WeatherUnderground (WU) maps.  The data is still showing for my site on WU 
>>> though (https://www.wunderground.com/dashboard/pws/KIDPOSTF43)
>>>
>>> Everything has been going fine except I am currently having a problem 
>>> with data inaccuracies.  All the data seems correct except the barometer 
>>> reading.  The reading on my hardware is currently 30.30 and weeWX is 
>>> showing 33.093 which is what is reporting to WU.
>>>
>>> Can anyone please shed some light on this issue?  I've attached the 
>>> syslog for reference.  Please let me know if there is anything else I can 
>>> provide to help with this situation. If the solution requires changes in 
>>> the configuration file, please be specific as I am still learning the Linux 
>>> stuff.
>>>
>>> Thanks,
>>>
>>> Dan
>>>
>>>
>>> Hardware: Lacrosse WS-2813
>>>
>>>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/d026b7e2-1fb7-4e61-a715-8d48befd725c%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

I don't know who Matthew is, but I am eagerly awaiting his input.  Thanks.

On Saturday, February 15, 2020 at 6:13:15 AM UTC-8, Thomas Keffer wrote:
>
> This is Matthew's baby. Matthew?
>
> -tk
>
> On Fri, Feb 14, 2020 at 10:11 PM gjr80 > 
> wrote:
>
>> As this thread has drawn on I agree the solution is in the driver. I 
>> found it had to believe that a driver could have been around for so long 
>> with an incorrect 'pressure' being used and the issue never having come up 
>> before. Sure enough, this thread 
>> <https://groups.google.com/d/topic/weewx-user/hFp03F9XVH4/discussion> 
>> from 2016 bears a remarkable similarity to the issue here. It also seems 
>> that Tom acknowledged that the WS2813 actually outputs altimeter not 
>> pressure as coded in the driver. Later in the thread there are suggested 
>> changes to the driver but it gets a bit murky around some corrections that 
>> are being applied within StdCaibrate. Seems no changes were ever made to 
>> the driver though. Might be worthwhile for Tom or Matthew to revisit this.
>>
>> Gary
>>
>> On Saturday, 15 February 2020 14:22:07 UTC+10, ln77 wrote:
>>>
>>> OK… The “pressure” that your station is displaying is what it should be 
>>> displaying: the ambient air pressure, correct for your altitude.  In weewx, 
>>> this is called “barometer” because that is what weather stations report for 
>>> barometric pressure.  “Altimeter” is basically the same thing; there are 
>>> differences in exactly how it is corrected, but those differences are minor 
>>> and can be ignored for now.  The distinction between what weewx calls 
>>> “barometer” and “pressure” is important, though, for anyone more than a few 
>>> hundred feet above sea level.  
>>>
>>> From the manual, it appears that the WS-2813 uses a simple method for 
>>> correcting to sea level, by allowing the user to adjust a correction factor 
>>> that is applied to the actual measured pressure until the reading matches 
>>> some local reference barometric pressure report.  This automatically also 
>>> corrects for any errors in the pressure sensor itself, a handy bonus. 
>>> There’s not reference in the manual to any other kind of pressure being 
>>> reported, so it only makes sense that what it transmits via the USB 
>>> interface is also this corrected pressure, i.e., “barometer.”  But the 
>>> WS28XX driver documentation, and as far as I can tell the code also, assume 
>>> that the pressure reading fro the hardware is what weewx calls “pressure,” 
>>> that is, the actual ambient pressure before correction for altitude.  As 
>>> far as I can tell, all of the WS28XX LaCrosse stations work the same way as 
>>> yours and actually send the corrected barometer reading. Maybe because the 
>>> LaCrosse documentation calls it “pressure,” it was mistakenly interpreted 
>>> as raw pressure reading in the driver. 
>>>
>>> The bottom line is, I’m pretty sure the issue is that the driver is 
>>> wrong.  I’m not familiar enough with that part of the weewx code to offer a 
>>> fix, but it should be pretty simple for someone who is familiar with that 
>>> code.  
>>>
>>>   -Les
>>>
>>>
>>>
>>> On 14 Feb 2020, at 19:44, Dan Blanchard  wrote:
>>>
>>> It is likely that I am mis-using the terms altimeter, barometer, and 
>>> pressure.  I'll clarify what I mean here.  
>>>
>>> What I previously defined as 'correct' pressure is that the pressure 
>>> reported by my station (LaCrosse WS-2813U-IT) matches the National Weather 
>>> Service barometer reading (
>>> https://forecast.weather.gov/MapClick.php?lat=47.7151345=-116.946676#.XkdkXDFKiUk).
>>>  
>>> For example, *right now* my station is reading 30.06 pressure and the 
>>> NWS site is reporting 30.0 barometer.  Ultimately I just want my WS-2813 
>>> pressure reading to match the WU pressure reading (
>>> https://www.wunderground.com/dashboard/pws/KIDPOSTF43).  Right now it 
>>> appears that WU is reading the weewx barometer reading.  Is there a way to 
>>> have weewx report the pressure reading to WU?
>>>
>>> My WS-2813 outputs the manually adjusted pressure in the Loop records 
>>> (see attachment).  I don't see a way to change that.  Here is a link to the 
>>> manual (
>>> https://www.lacrossetechnology.com/media/catalog/product/w/s/ws-2813u-it.pdf
>>> ).
>>>
>>> On Friday, February 14, 2020 at 9:22:17 AM

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Andrew, I've set barometer = hardware and altimeter = software and pressure 
= software.  I've restarted weewx, but nothing has changed in the Loop.

On Friday, February 14, 2020 at 9:30:06 PM UTC-8, Andrew Milner wrote:
>
> if indeed, and i now tend to agree, the station displays and outputs a 
> manually adjusted barometer which is set to a sea level reading from local 
> weather stations and not pressure then barometer should be set to hardware 
> and pressure and altimeter set to software, and not as i previously 
> suggested.
>
> On Saturday, 15 February 2020 06:22:07 UTC+2, ln77 wrote:
>>
>> OK… The “pressure” that your station is displaying is what it should be 
>> displaying: the ambient air pressure, correct for your altitude.  In weewx, 
>> this is called “barometer” because that is what weather stations report for 
>> barometric pressure.  “Altimeter” is basically the same thing; there are 
>> differences in exactly how it is corrected, but those differences are minor 
>> and can be ignored for now.  The distinction between what weewx calls 
>> “barometer” and “pressure” is important, though, for anyone more than a few 
>> hundred feet above sea level.  
>>
>> From the manual, it appears that the WS-2813 uses a simple method for 
>> correcting to sea level, by allowing the user to adjust a correction factor 
>> that is applied to the actual measured pressure until the reading matches 
>> some local reference barometric pressure report.  This automatically also 
>> corrects for any errors in the pressure sensor itself, a handy bonus. 
>> There’s not reference in the manual to any other kind of pressure being 
>> reported, so it only makes sense that what it transmits via the USB 
>> interface is also this corrected pressure, i.e., “barometer.”  But the 
>> WS28XX driver documentation, and as far as I can tell the code also, assume 
>> that the pressure reading fro the hardware is what weewx calls “pressure,” 
>> that is, the actual ambient pressure before correction for altitude.  As 
>> far as I can tell, all of the WS28XX LaCrosse stations work the same way as 
>> yours and actually send the corrected barometer reading. Maybe because the 
>> LaCrosse documentation calls it “pressure,” it was mistakenly interpreted 
>> as raw pressure reading in the driver. 
>>
>> The bottom line is, I’m pretty sure the issue is that the driver is 
>> wrong.  I’m not familiar enough with that part of the weewx code to offer a 
>> fix, but it should be pretty simple for someone who is familiar with that 
>> code.  
>>
>>   -Les
>>
>>
>>
>> On 14 Feb 2020, at 19:44, Dan Blanchard  wrote:
>>
>> It is likely that I am mis-using the terms altimeter, barometer, and 
>> pressure.  I'll clarify what I mean here.  
>>
>> What I previously defined as 'correct' pressure is that the pressure 
>> reported by my station (LaCrosse WS-2813U-IT) matches the National Weather 
>> Service barometer reading (
>> https://forecast.weather.gov/MapClick.php?lat=47.7151345=-116.946676#.XkdkXDFKiUk).
>>  
>> For example, *right now* my station is reading 30.06 pressure and the 
>> NWS site is reporting 30.0 barometer.  Ultimately I just want my WS-2813 
>> pressure reading to match the WU pressure reading (
>> https://www.wunderground.com/dashboard/pws/KIDPOSTF43).  Right now it 
>> appears that WU is reading the weewx barometer reading.  Is there a way to 
>> have weewx report the pressure reading to WU?
>>
>> My WS-2813 outputs the manually adjusted pressure in the Loop records 
>> (see attachment).  I don't see a way to change that.  Here is a link to the 
>> manual (
>> https://www.lacrossetechnology.com/media/catalog/product/w/s/ws-2813u-it.pdf
>> ).
>>
>> On Friday, February 14, 2020 at 9:22:17 AM UTC-8, Andrew Milner wrote:
>>>
>>> I would expect you to be reporting barometer = sea level pressure which 
>>> is pressure adjusted for temperature and altitude because weather stations 
>>> always report sea level pressures.
>>>
>>> Is what you call 'correct' pressure the raw pressure of the instrument 
>>> or a pressure which you have set.  Does the station output the raw pressure 
>>> or the manually adjusted pressure in the loop records?
>>>
>>>
>>>
>>> On Friday, 14 February 2020 18:07:15 UTC+2, Dan Blanchard wrote:
>>>>
>>>> Andrew, that's a good questions; let me clarify.  
>>>>
>>>> This issue started when Weather Underground (WU) stopped showing my 
>>>> station

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

It is likely that I am mis-using the terms altimeter, barometer, and 
pressure.  I'll clarify what I mean here.  

What I previously defined as 'correct' pressure is that the pressure 
reported by my station (LaCrosse WS-2813U-IT) matches the National Weather 
Service barometer reading (
https://forecast.weather.gov/MapClick.php?lat=47.7151345=-116.946676#.XkdkXDFKiUk).
 
For example, *right now* my station is reading 30.06 pressure and the NWS 
site is reporting 30.0 barometer.  Ultimately I just want my WS-2813 
pressure reading to match the WU pressure reading (
https://www.wunderground.com/dashboard/pws/KIDPOSTF43).  Right now it 
appears that WU is reading the weewx barometer reading.  Is there a way to 
have weewx report the pressure reading to WU?

My WS-2813 outputs the manually adjusted pressure in the Loop records (see 
attachment).  I don't see a way to change that.  Here is a link to the 
manual (
https://www.lacrossetechnology.com/media/catalog/product/w/s/ws-2813u-it.pdf
).

On Friday, February 14, 2020 at 9:22:17 AM UTC-8, Andrew Milner wrote:
>
> I would expect you to be reporting barometer = sea level pressure which is 
> pressure adjusted for temperature and altitude because weather stations 
> always report sea level pressures.
>
> Is what you call 'correct' pressure the raw pressure of the instrument or 
> a pressure which you have set.  Does the station output the raw pressure or 
> the manually adjusted pressure in the loop records?
>
>
>
> On Friday, 14 February 2020 18:07:15 UTC+2, Dan Blanchard wrote:
>>
>> Andrew, that's a good questions; let me clarify.  
>>
>> This issue started when Weather Underground (WU) stopped showing my 
>> station on the maps. I found out that was because I was reporting an 
>> incorrect barometric 'pressure.'  As I dug into the details I found that my 
>> *station 
>> *was displaying the correct pressure (29.xx) but by the time it got to 
>> WU, it was displaying the barometer reading (32.xx) from weewx.  This can 
>> also be demonstrated by looking at the data displayed at 
>> /var/www/html/weewx/index.html 
>> (see attachment) so I assume that weewx is taking the pressure from my 
>> station and somehow converting it or exchanging it for barometric pressure 
>> before it gets uploaded to WU.  I just want the pressure from my unit to be 
>> what is reported to WU.
>>
>> Side note: I've been running this station for many years on a Windows 
>> based system and it has been working fine.  So I know the hardware side is 
>> working; just something different about how weewx reports pressure (or 
>> barometer, or altimiter).
>>
>> Does that help clarify my issue?
>>
>> On Friday, February 14, 2020 at 2:24:31 AM UTC-8, Andrew Milner wrote:
>>>
>>> I am  not sure I understand what you think is wrong with the readings of
>>> Pressure 29.89
>>> Barometer 32.609
>>> Altimeter 32.40
>>> and why you believe something is wrong
>>>
>>>
>>> On Friday, 14 February 2020 05:57:36 UTC+2, Dan Blanchard wrote:
>>>>
>>>> Altitude is 2,320 ft. and the values are in the screen shot on the 
>>>> previous post.  Did you see that?
>>>>
>>>> On Thursday, February 13, 2020 at 7:16:11 PM UTC-8, Andrew Milner wrote:
>>>>>
>>>>> I give up - looks correct to me.
>>>>>
>>>>> have you run from the command line and seen the LOOP and REC data 
>>>>> weewx is receiving?
>>>>>
>>>>> what altitude is your station, and what values are you currently 
>>>>> getting for pressure, barometer and altimeter?  
>>>>>
>>>>> On Thursday, 13 February 2020 22:10:08 UTC+2, Dan Blanchard wrote:
>>>>>>
>>>>>> I don't know, but that makes sense so I did it.  I'm still not 
>>>>>> getting desired results though.
>>>>>>
>>>>>> On Thursday, February 13, 2020 at 9:38:55 AM UTC-8, Kevin Davis wrote:
>>>>>>>
>>>>>>> Do you need a space between your minus sign and the adjustment 
>>>>>>> value? 
>>>>>>>
>>>>>>> On Thu, Feb 13, 2020 at 9:32 AM Dan Blanchard  
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hey Andrew, will you please look at the attached screen shots and 
>>>>>>>> let me know if this looks correct?
>>>>>>>>
>>>>>>>> Do I need to restart (sudo /etc/init.d/weewx restart) after I make 
>>>>>>

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

What I am defining as 'correct' pressure is the barometer value that 
matches the local reading from the National Weather Service (NWS) for my 
area.  In other words, the pressure on my weather station (LaCrosse 
WS-2813U-IT) matches what the NWS is reporting as Barometer (
https://forecast.weather.gov/MapClick.php?lat=47.7151345=-116.946676#.XkdkXDFKiUk).
 
It is possible that I am mis-using the terms barometer, altimeter, and 
pressure.

Ultimately, I just want the value reported by my WS-2813 to be reported to 
WU.

If I understand your question correctly, my station outputs the manually 
adjusted pressure in the loop records. For example, my station is reporting 
30.06 and the Loop record is reporting 30.05857 *right now* (see 
attachment).

On Friday, February 14, 2020 at 9:22:17 AM UTC-8, Andrew Milner wrote:
>
> I would expect you to be reporting barometer = sea level pressure which is 
> pressure adjusted for temperature and altitude because weather stations 
> always report sea level pressures.
>
> Is what you call 'correct' pressure the raw pressure of the instrument or 
> a pressure which you have set.  Does the station output the raw pressure or 
> the manually adjusted pressure in the loop records?
>
>
>
> On Friday, 14 February 2020 18:07:15 UTC+2, Dan Blanchard wrote:
>>
>> Andrew, that's a good questions; let me clarify.  
>>
>> This issue started when Weather Underground (WU) stopped showing my 
>> station on the maps. I found out that was because I was reporting an 
>> incorrect barometric 'pressure.'  As I dug into the details I found that my 
>> *station 
>> *was displaying the correct pressure (29.xx) but by the time it got to 
>> WU, it was displaying the barometer reading (32.xx) from weewx.  This can 
>> also be demonstrated by looking at the data displayed at 
>> /var/www/html/weewx/index.html 
>> (see attachment) so I assume that weewx is taking the pressure from my 
>> station and somehow converting it or exchanging it for barometric pressure 
>> before it gets uploaded to WU.  I just want the pressure from my unit to be 
>> what is reported to WU.
>>
>> Side note: I've been running this station for many years on a Windows 
>> based system and it has been working fine.  So I know the hardware side is 
>> working; just something different about how weewx reports pressure (or 
>> barometer, or altimiter).
>>
>> Does that help clarify my issue?
>>
>> On Friday, February 14, 2020 at 2:24:31 AM UTC-8, Andrew Milner wrote:
>>>
>>> I am  not sure I understand what you think is wrong with the readings of
>>> Pressure 29.89
>>> Barometer 32.609
>>> Altimeter 32.40
>>> and why you believe something is wrong
>>>
>>>
>>> On Friday, 14 February 2020 05:57:36 UTC+2, Dan Blanchard wrote:
>>>>
>>>> Altitude is 2,320 ft. and the values are in the screen shot on the 
>>>> previous post.  Did you see that?
>>>>
>>>> On Thursday, February 13, 2020 at 7:16:11 PM UTC-8, Andrew Milner wrote:
>>>>>
>>>>> I give up - looks correct to me.
>>>>>
>>>>> have you run from the command line and seen the LOOP and REC data 
>>>>> weewx is receiving?
>>>>>
>>>>> what altitude is your station, and what values are you currently 
>>>>> getting for pressure, barometer and altimeter?  
>>>>>
>>>>> On Thursday, 13 February 2020 22:10:08 UTC+2, Dan Blanchard wrote:
>>>>>>
>>>>>> I don't know, but that makes sense so I did it.  I'm still not 
>>>>>> getting desired results though.
>>>>>>
>>>>>> On Thursday, February 13, 2020 at 9:38:55 AM UTC-8, Kevin Davis wrote:
>>>>>>>
>>>>>>> Do you need a space between your minus sign and the adjustment 
>>>>>>> value? 
>>>>>>>
>>>>>>> On Thu, Feb 13, 2020 at 9:32 AM Dan Blanchard  
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hey Andrew, will you please look at the attached screen shots and 
>>>>>>>> let me know if this looks correct?
>>>>>>>>
>>>>>>>> Do I need to restart (sudo /etc/init.d/weewx restart) after I make 
>>>>>>>> these changes?  I have and the changes don't seem to be taking effect. 
>>>>>>>>  Is 
>>>>>>>> there something else I need to do?
>>>>>>>>
>>>>>>>

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Andrew, that's a good questions; let me clarify.  

This issue started when Weather Underground (WU) stopped showing my station 
on the maps. I found out that was because I was reporting an incorrect 
barometric 'pressure.'  As I dug into the details I found that my *station *was 
displaying the correct pressure (29.xx) but by the time it got to WU, it 
was displaying the barometer reading (32.xx) from weewx.  This can also be 
demonstrated by looking at the data displayed at /var/www/html/weewx/index.html 
(see attachment) so I assume that weewx is taking the pressure from my 
station and somehow converting it or exchanging it for barometric pressure 
before it gets uploaded to WU.  I just want the pressure from my unit to be 
what is reported to WU.

Side note: I've been running this station for many years on a Windows based 
system and it has been working fine.  So I know the hardware side is 
working; just something different about how weewx reports pressure (or 
barometer, or altimiter).

Does that help clarify my issue?

On Friday, February 14, 2020 at 2:24:31 AM UTC-8, Andrew Milner wrote:
>
> I am  not sure I understand what you think is wrong with the readings of
> Pressure 29.89
> Barometer 32.609
> Altimeter 32.40
> and why you believe something is wrong
>
>
> On Friday, 14 February 2020 05:57:36 UTC+2, Dan Blanchard wrote:
>>
>> Altitude is 2,320 ft. and the values are in the screen shot on the 
>> previous post.  Did you see that?
>>
>> On Thursday, February 13, 2020 at 7:16:11 PM UTC-8, Andrew Milner wrote:
>>>
>>> I give up - looks correct to me.
>>>
>>> have you run from the command line and seen the LOOP and REC data weewx 
>>> is receiving?
>>>
>>> what altitude is your station, and what values are you currently getting 
>>> for pressure, barometer and altimeter?  
>>>
>>> On Thursday, 13 February 2020 22:10:08 UTC+2, Dan Blanchard wrote:
>>>>
>>>> I don't know, but that makes sense so I did it.  I'm still not getting 
>>>> desired results though.
>>>>
>>>> On Thursday, February 13, 2020 at 9:38:55 AM UTC-8, Kevin Davis wrote:
>>>>>
>>>>> Do you need a space between your minus sign and the adjustment value? 
>>>>>
>>>>> On Thu, Feb 13, 2020 at 9:32 AM Dan Blanchard  
>>>>> wrote:
>>>>>
>>>>>> Hey Andrew, will you please look at the attached screen shots and let 
>>>>>> me know if this looks correct?
>>>>>>
>>>>>> Do I need to restart (sudo /etc/init.d/weewx restart) after I make 
>>>>>> these changes?  I have and the changes don't seem to be taking effect.  
>>>>>> Is 
>>>>>> there something else I need to do?
>>>>>>
>>>>>> With regard to the barometer and altimeter having the same settings; 
>>>>>> I have probably misled.  They are not exactly the same but they were 
>>>>>> relatively close to each other compared to the pressure value.  Here are 
>>>>>> the current readings as of now when I run sudo weewxd 
>>>>>> /etc/weewx/weewx.conf.
>>>>>>
>>>>>> pressure: 29.98
>>>>>> altimeter: 32.57
>>>>>> barometer: 32.74
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Thursday, February 13, 2020 at 12:07:50 AM UTC-8, Andrew Milner 
>>>>>> wrote:
>>>>>>>
>>>>>>> If you have a LaCrosse WS28xx station then according to the hardware 
>>>>>>> guide the station outputs PRESSURE in weewx terminology - regardless of 
>>>>>>> what LaCrosse call it - and weewx should calculate barometer and 
>>>>>>> altimeter 
>>>>>>> settings.
>>>>>>>
>>>>>>> If pressure is incorrect then it can be adjusted as you specified - 
>>>>>>> by adjusting pressure (not barometer or altimeter)
>>>>>>>
>>>>>>> Make sure pressure is set to use hardware and barometer and 
>>>>>>> altimeter are set to use software.
>>>>>>>
>>>>>>> I am surprised barometer and altimeter are the same values - have 
>>>>>>> you set the station's altitude in weewx.conf, and have you specified 
>>>>>>> software generation for the values?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Altitude is 2,320 ft. and the values are in the screen shot on the previous 
post.  Did you see that?

On Thursday, February 13, 2020 at 7:16:11 PM UTC-8, Andrew Milner wrote:
>
> I give up - looks correct to me.
>
> have you run from the command line and seen the LOOP and REC data weewx is 
> receiving?
>
> what altitude is your station, and what values are you currently getting 
> for pressure, barometer and altimeter?  
>
> On Thursday, 13 February 2020 22:10:08 UTC+2, Dan Blanchard wrote:
>>
>> I don't know, but that makes sense so I did it.  I'm still not getting 
>> desired results though.
>>
>> On Thursday, February 13, 2020 at 9:38:55 AM UTC-8, Kevin Davis wrote:
>>>
>>> Do you need a space between your minus sign and the adjustment value? 
>>>
>>> On Thu, Feb 13, 2020 at 9:32 AM Dan Blanchard  
>>> wrote:
>>>
>>>> Hey Andrew, will you please look at the attached screen shots and let 
>>>> me know if this looks correct?
>>>>
>>>> Do I need to restart (sudo /etc/init.d/weewx restart) after I make 
>>>> these changes?  I have and the changes don't seem to be taking effect.  Is 
>>>> there something else I need to do?
>>>>
>>>> With regard to the barometer and altimeter having the same settings; I 
>>>> have probably misled.  They are not exactly the same but they were 
>>>> relatively close to each other compared to the pressure value.  Here are 
>>>> the current readings as of now when I run sudo weewxd 
>>>> /etc/weewx/weewx.conf.
>>>>
>>>> pressure: 29.98
>>>> altimeter: 32.57
>>>> barometer: 32.74
>>>>
>>>>
>>>>
>>>> On Thursday, February 13, 2020 at 12:07:50 AM UTC-8, Andrew Milner 
>>>> wrote:
>>>>>
>>>>> If you have a LaCrosse WS28xx station then according to the hardware 
>>>>> guide the station outputs PRESSURE in weewx terminology - regardless of 
>>>>> what LaCrosse call it - and weewx should calculate barometer and 
>>>>> altimeter 
>>>>> settings.
>>>>>
>>>>> If pressure is incorrect then it can be adjusted as you specified - by 
>>>>> adjusting pressure (not barometer or altimeter)
>>>>>
>>>>> Make sure pressure is set to use hardware and barometer and altimeter 
>>>>> are set to use software.
>>>>>
>>>>> I am surprised barometer and altimeter are the same values - have you 
>>>>> set the station's altitude in weewx.conf, and have you specified software 
>>>>> generation for the values?
>>>>>
>>>>>
>>>>>
>>>>> On Thursday, 13 February 2020 09:23:27 UTC+2, Dan Blanchard wrote:
>>>>>>
>>>>>> Andrew, are you suggesting that I make a 'correction' entry under 
>>>>>> [StdCalibrate] such as barometer = barometer -2.8  assuming that I am 
>>>>>> getting a pressure reading of 30.13  and Barometer and ALtitude readings 
>>>>>> of 
>>>>>> 32.93?
>>>>>>
>>>>>> (see attached screenshot)
>>>>>>
>>>>>> On Wednesday, February 12, 2020 at 7:42:08 PM UTC-8, Andrew Milner 
>>>>>> wrote:
>>>>>>>
>>>>>>> 1. use stdcalibrate section of weewx.conf
>>>>>>> http://weewx.com/docs/usersguide.htm#StdCalibrate
>>>>>>> 2. FO station = Fine Offset weather station
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Wednesday, 12 February 2020 22:15:48 UTC+2, Dan Blanchard wrote:
>>>>>>>>
>>>>>>>> Andrew, how do I calibrate the pressure in weewx? Also, what's a FO 
>>>>>>>> station?
>>>>>>>>
>>>>>>>> On Tuesday, February 11, 2020 at 8:01:08 PM UTC-8, Andrew Milner 
>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> check that the absolute pressure is correct - I have had a FO 
>>>>>>>>> station which had a dodgy pressure sensor before now.  Calibrating 
>>>>>>>>> pressure 
>>>>>>>>> in weewx solved it.
>>>>>>>>>
>>>>>>>> -- 
>>>> You received this message because you are subscribed to the Google 
>>>> Groups "weewx-user" group.
>>>> To unsubscribe from this group and stop receiving emails from it, send 
>>>> an email to weewx...@googlegroups.com.
>>>> To view this discussion on the web visit 
>>>> https://groups.google.com/d/msgid/weewx-user/08c79655-b1af-4134-9a2b-82a4f52f051f%40googlegroups.com
>>>>  
>>>> <https://groups.google.com/d/msgid/weewx-user/08c79655-b1af-4134-9a2b-82a4f52f051f%40googlegroups.com?utm_medium=email_source=footer>
>>>> .
>>>>
>>>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/04b48216-0d03-4616-b548-8bf18cce067d%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

I don't know, but that makes sense so I did it.  I'm still not getting 
desired results though.

On Thursday, February 13, 2020 at 9:38:55 AM UTC-8, Kevin Davis wrote:
>
> Do you need a space between your minus sign and the adjustment value? 
>
> On Thu, Feb 13, 2020 at 9:32 AM Dan Blanchard  > wrote:
>
>> Hey Andrew, will you please look at the attached screen shots and let me 
>> know if this looks correct?
>>
>> Do I need to restart (sudo /etc/init.d/weewx restart) after I make these 
>> changes?  I have and the changes don't seem to be taking effect.  Is there 
>> something else I need to do?
>>
>> With regard to the barometer and altimeter having the same settings; I 
>> have probably misled.  They are not exactly the same but they were 
>> relatively close to each other compared to the pressure value.  Here are 
>> the current readings as of now when I run sudo weewxd 
>> /etc/weewx/weewx.conf.
>>
>> pressure: 29.98
>> altimeter: 32.57
>> barometer: 32.74
>>
>>
>>
>> On Thursday, February 13, 2020 at 12:07:50 AM UTC-8, Andrew Milner wrote:
>>>
>>> If you have a LaCrosse WS28xx station then according to the hardware 
>>> guide the station outputs PRESSURE in weewx terminology - regardless of 
>>> what LaCrosse call it - and weewx should calculate barometer and altimeter 
>>> settings.
>>>
>>> If pressure is incorrect then it can be adjusted as you specified - by 
>>> adjusting pressure (not barometer or altimeter)
>>>
>>> Make sure pressure is set to use hardware and barometer and altimeter 
>>> are set to use software.
>>>
>>> I am surprised barometer and altimeter are the same values - have you 
>>> set the station's altitude in weewx.conf, and have you specified software 
>>> generation for the values?
>>>
>>>
>>>
>>> On Thursday, 13 February 2020 09:23:27 UTC+2, Dan Blanchard wrote:
>>>>
>>>> Andrew, are you suggesting that I make a 'correction' entry under 
>>>> [StdCalibrate] such as barometer = barometer -2.8  assuming that I am 
>>>> getting a pressure reading of 30.13  and Barometer and ALtitude readings 
>>>> of 
>>>> 32.93?
>>>>
>>>> (see attached screenshot)
>>>>
>>>> On Wednesday, February 12, 2020 at 7:42:08 PM UTC-8, Andrew Milner 
>>>> wrote:
>>>>>
>>>>> 1. use stdcalibrate section of weewx.conf
>>>>> http://weewx.com/docs/usersguide.htm#StdCalibrate
>>>>> 2. FO station = Fine Offset weather station
>>>>>
>>>>>
>>>>>
>>>>> On Wednesday, 12 February 2020 22:15:48 UTC+2, Dan Blanchard wrote:
>>>>>>
>>>>>> Andrew, how do I calibrate the pressure in weewx? Also, what's a FO 
>>>>>> station?
>>>>>>
>>>>>> On Tuesday, February 11, 2020 at 8:01:08 PM UTC-8, Andrew Milner 
>>>>>> wrote:
>>>>>>>
>>>>>>> check that the absolute pressure is correct - I have had a FO 
>>>>>>> station which had a dodgy pressure sensor before now.  Calibrating 
>>>>>>> pressure 
>>>>>>> in weewx solved it.
>>>>>>>
>>>>>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "weewx-user" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to weewx...@googlegroups.com .
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/weewx-user/08c79655-b1af-4134-9a2b-82a4f52f051f%40googlegroups.com
>>  
>> <https://groups.google.com/d/msgid/weewx-user/08c79655-b1af-4134-9a2b-82a4f52f051f%40googlegroups.com?utm_medium=email_source=footer>
>> .
>>
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/78953552-a6d8-4bb5-9bfe-2c28ee8e8b6a%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Hey Andrew, will you please look at the attached screen shots and let me 
know if this looks correct?

Do I need to restart (sudo /etc/init.d/weewx restart) after I make these 
changes?  I have and the changes don't seem to be taking effect.  Is there 
something else I need to do?

With regard to the barometer and altimeter having the same settings; I have 
probably misled.  They are not exactly the same but they were relatively 
close to each other compared to the pressure value.  Here are the current 
readings as of now when I run sudo weewxd /etc/weewx/weewx.conf.

pressure: 29.98
altimeter: 32.57
barometer: 32.74



On Thursday, February 13, 2020 at 12:07:50 AM UTC-8, Andrew Milner wrote:
>
> If you have a LaCrosse WS28xx station then according to the hardware guide 
> the station outputs PRESSURE in weewx terminology - regardless of what 
> LaCrosse call it - and weewx should calculate barometer and altimeter 
> settings.
>
> If pressure is incorrect then it can be adjusted as you specified - by 
> adjusting pressure (not barometer or altimeter)
>
> Make sure pressure is set to use hardware and barometer and altimeter are 
> set to use software.
>
> I am surprised barometer and altimeter are the same values - have you set 
> the station's altitude in weewx.conf, and have you specified software 
> generation for the values?
>
>
>
> On Thursday, 13 February 2020 09:23:27 UTC+2, Dan Blanchard wrote:
>>
>> Andrew, are you suggesting that I make a 'correction' entry under 
>> [StdCalibrate] such as barometer = barometer -2.8  assuming that I am 
>> getting a pressure reading of 30.13  and Barometer and ALtitude readings of 
>> 32.93?
>>
>> (see attached screenshot)
>>
>> On Wednesday, February 12, 2020 at 7:42:08 PM UTC-8, Andrew Milner wrote:
>>>
>>> 1. use stdcalibrate section of weewx.conf
>>> http://weewx.com/docs/usersguide.htm#StdCalibrate
>>> 2. FO station = Fine Offset weather station
>>>
>>>
>>>
>>> On Wednesday, 12 February 2020 22:15:48 UTC+2, Dan Blanchard wrote:
>>>>
>>>> Andrew, how do I calibrate the pressure in weewx? Also, what's a FO 
>>>> station?
>>>>
>>>> On Tuesday, February 11, 2020 at 8:01:08 PM UTC-8, Andrew Milner wrote:
>>>>>
>>>>> check that the absolute pressure is correct - I have had a FO station 
>>>>> which had a dodgy pressure sensor before now.  Calibrating pressure in 
>>>>> weewx solved it.
>>>>>
>>>>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/08c79655-b1af-4134-9a2b-82a4f52f051f%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Andrew, are you suggesting that I make a 'correction' entry under 
[StdCalibrate] such as barometer = barometer -2.8  assuming that I am 
getting a pressure reading of 30.13  and Barometer and ALtitude readings of 
32.93?

(see attached screenshot)

On Wednesday, February 12, 2020 at 7:42:08 PM UTC-8, Andrew Milner wrote:
>
> 1. use stdcalibrate section of weewx.conf
> http://weewx.com/docs/usersguide.htm#StdCalibrate
> 2. FO station = Fine Offset weather station
>
>
>
> On Wednesday, 12 February 2020 22:15:48 UTC+2, Dan Blanchard wrote:
>>
>> Andrew, how do I calibrate the pressure in weewx? Also, what's a FO 
>> station?
>>
>> On Tuesday, February 11, 2020 at 8:01:08 PM UTC-8, Andrew Milner wrote:
>>>
>>> check that the absolute pressure is correct - I have had a FO station 
>>> which had a dodgy pressure sensor before now.  Calibrating pressure in 
>>> weewx solved it.
>>>
>>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/02ec6a4e-4153-4ec1-93f7-2932b23d0829%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Andrew, how do I calibrate the pressure in weewx? Also, what's a FO station?

On Tuesday, February 11, 2020 at 8:01:08 PM UTC-8, Andrew Milner wrote:
>
> check that the absolute pressure is correct - I have had a FO station 
> which had a dodgy pressure sensor before now.  Calibrating pressure in 
> weewx solved it.
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/e6c49bfe-df97-4c7e-a2dd-e3b0d3381ffb%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

The further I go, the more complex it is getting.  First, yes I have a 
WS-2813U-IT and yes, I did set the relative pressure to match the local 
weather service.

I don't want to muddy the waters any more, but how is it that I stopped the 
wewx service but it is still reporting?  I'm still trying to understand 
this thing.

On Tuesday, February 11, 2020 at 5:04:02 PM UTC-8, gjr80 wrote:
>
> On Wednesday, 12 February 2020 10:16:47 UTC+10, Dan Blanchard wrote:
>>
>> OK, I shut down via sudo /etc/init.d/weewx stop then I ran sudo weewxd 
>> /etc/weewx/weewx.conf and it is continuing to produce data.  I see that 
>> the barometer and altimeter are both the 32.xx readings while pressure is 
>> the same as what is reading on my station 29.9x.
>>
>> Hang on, let's go through this a bit more carefully. So you have run 
> WeeWX directly and are seeing all three WeeWX pressure fields. WeeWX field 
> pressure is matching what is on your console exactly. Fields altitude and 
> barometer are 'in the 32s'. By my rough calculations an absolute pressure 
> of 29.9inHg at 2300ft gives a barometer value of about 32.5. So on the face 
> of it it would appear that the driver is providing data (whether it is 
> right or wrong) in field pressure and WeeWX is calculating fields 
> barometer and altimeter as expected.
>
> Can I ge weewx to read the pressure reading in lieu of the barometer 
>> altimeter reading that it is presumably doing?
>>
>
> Now I don't understand. The 28xx driver takes the pressure value displayed 
> on the station hardware and feeds that to WeeWX as the WeeWX field named 
> pressure (after which WeeWX calculates fields barometer and altitude). Do 
> you want the driver to instead take that pressure value displayed on the 
> station hardware and feed that to WeeWX as the WeeWX field named barometer 
> (after which WeeWX calculates fields pressure and altitude)? That can be 
> done but it requires modification of the driver code, I would not being 
> doing that lightly, someone did not roll a dice and randomly decide to put 
> the pressure value from the 2813 in field pressure, it was done for a 
> reason.
>
> I was looking for a 2813 manual and the only manual I could find was for a 
> WS-2813U-IT weather station. On page 14 it talks about setting a 'Relative 
> value pressure reference setting' based on a value from a weather service, 
> airport etc. Is that your station and have you set that correctly or if not 
> your station is there a similar setting?
>
> Gary
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/d6b0705d-c532-4a78-afa5-4f93b2ed8072%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

OK, I shut down via sudo /etc/init.d/weewx stop then I ran sudo weewxd 
/etc/weewx/weewx.conf and it is continuing to produce data.  I see that the 
barometer and altimeter are both the 32.xx readings while pressure is the 
same as what is reading on my station 29.9x.

Can I ge weewx to read the pressure reading in lieu of the barometer 
altimeter reading that it is presumably doing?



On Tuesday, February 11, 2020 at 4:10:07 PM UTC-8, gjr80 wrote:
>
> Yes, that will shutdown a well behaved WeeWX service. Try that to start 
> with.
>
> Gary
>
> On Wednesday, 12 February 2020 09:58:21 UTC+10, Dan Blanchard wrote:
>>
>> Do you mean sudo /etc/init.d/weewx stop
>>
>> On Tuesday, February 11, 2020 at 2:55:34 PM UTC-8, gjr80 wrote:
>>>
>>> OK, and what happens if you shutdown/kill all running instances of WeeWX.
>>>
>>> Gary
>>>
>>> On Wednesday, 12 February 2020 08:48:43 UTC+10, Dan Blanchard wrote:
>>>>
>>>> I've attached the latest log and new screenshot
>>>>
>>>> On Tuesday, February 11, 2020 at 2:40:04 PM UTC-8, gjr80 wrote:
>>>>>
>>>>> That is bizarre, but sudo weewxd weewx.conf still gives a reaction 
>>>>> and error. Nothing appears in the log?
>>>>>
>>>>> Gary
>>>>>
>>>>> On Wednesday, 12 February 2020 08:33:55 UTC+10, Dan Blanchard wrote:
>>>>>>
>>>>>> Screen shot attached
>>>>>>
>>>>>> On Tuesday, February 11, 2020 at 12:30:30 PM UTC-8, gjr80 wrote:
>>>>>>>
>>>>>>> What is nothing? Does it just return to the command prompt? Can you 
>>>>>>> post a screenshot of the exact command entered and the entire response.
>>>>>>>
>>>>>>> Gary
>>>>>>>
>>>>>>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/d93965d2-2531-4b70-a46e-44c772350da8%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Do you mean sudo /etc/init.d/weewx stop

On Tuesday, February 11, 2020 at 2:55:34 PM UTC-8, gjr80 wrote:
>
> OK, and what happens if you shutdown/kill all running instances of WeeWX.
>
> Gary
>
> On Wednesday, 12 February 2020 08:48:43 UTC+10, Dan Blanchard wrote:
>>
>> I've attached the latest log and new screenshot
>>
>> On Tuesday, February 11, 2020 at 2:40:04 PM UTC-8, gjr80 wrote:
>>>
>>> That is bizarre, but sudo weewxd weewx.conf still gives a reaction and 
>>> error. Nothing appears in the log?
>>>
>>> Gary
>>>
>>> On Wednesday, 12 February 2020 08:33:55 UTC+10, Dan Blanchard wrote:
>>>>
>>>> Screen shot attached
>>>>
>>>> On Tuesday, February 11, 2020 at 12:30:30 PM UTC-8, gjr80 wrote:
>>>>>
>>>>> What is nothing? Does it just return to the command prompt? Can you 
>>>>> post a screenshot of the exact command entered and the entire response.
>>>>>
>>>>> Gary
>>>>>
>>>>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/a0b5d9ef-85ea-49ee-ad64-357ec3e716e2%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Screen shot attached

On Tuesday, February 11, 2020 at 12:30:30 PM UTC-8, gjr80 wrote:
>
> What is nothing? Does it just return to the command prompt? Can you post a 
> screenshot of the exact command entered and the entire response.
>
> Gary
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/90d2a811-bf11-4a84-8a5c-7b23ec53dd46%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

First of all, thanks for sticking with me on this.  I apologize for my 
denseness on this matter.  I am apparently not running the proper weewxd; 
I've tried sudo weewxd /etc/weewx/weewx.conf and get nothing. I do not know 
how to see what pressures are being include in loop packet and archive 
records. A little more remedial help is appreciated.  Thanks

On Tuesday, February 11, 2020 at 9:51:23 AM UTC-8, ln77 wrote:
>
> The link in Gary’s mail explains how to run it — just give the full path 
> to the config file as an argument to weewxd. Something like:
> sudo weewxd /etc/weewx/weewx.conf
>
>   -Les
>
>
> On Feb 11, 2020, at 9:21 AM, Dan Blanchard  > wrote:
>
> 
> I have confirmed and to the best of my knowledge, the station altitude is 
> set correctly (altitude = 2320 foot).
>
> When I run weewx directly (sudo weewxd weewx.conf) I get the following:
>
> Traceback (most recent call last):
>   File "/usr/bin/weewxd", line 64, in 
> weewx.engine.main(options, args)
>   File "/usr/share/weewx/weewx/engine.py", line 852, in main
> sane = os.stat(config_path).st_ctime
> OSError: [Errno 2] No such file or directory: '/home/pi/weewx.conf'
>
> I really do not understand what that means.  I went and looked at line 64 
> and 852 but don't know enough to see a problem.  I understand the last line 
> because my config file is at /etc/weewx/weewx.conf.  Is there another way 
> to run it directly?
>
> Once I get past this step, I can try the other suggestions you had.
>
> On Tuesday, February 11, 2020 at 2:03:38 AM UTC-8, gjr80 wrote:
>>
>> Sorry, only use hPa here so the obvious nonsense inHg value was lost on 
>> me.
>>
>> WeeWX is flexible enough that you change whatever you want to display on 
>> your web page, you can use another field or recalculate using whatever you 
>> like, it's just a case of altering the appropriate template. Similarly, you 
>> can change what is sent to WU, WeeWX is coded to send field barometer, 
>> to change that you need to dig into the code and your changes would likely 
>> not be safe across an upgrade.
>>
>> In terms of solutions, one obvious check is that you have your station 
>> altitude set correctly in weewx.conf. You are after the altitude setting 
>> under [Station]. If altitude is set correctly then the solution is in 
>> the driver. The WS-2813 driver emits pressure and WeeWX calculates 
>> barometer and altitude. Have you run WeeWX directly 
>> <http://weewx.com/docs/usersguide.htm#Running_directly> to see what 
>> pressures are being include in loop packet and archive records. You should 
>> see all three pressures included as the data sent to console is after WeeWX 
>> has augmented the packet/record with whatever derived fields it can.
>>
>> Unfortunately it looks like the WS-2813 driver cannot be run stand alone 
>> which would be handy to see exactly what data is coming from the driver (as 
>> opposed to running WeeWX directly which include driver and WeeWX calculated 
>> fields). You can driver only data by disabling the WeeWX StdWXCalculate 
>> service that calculates the additional fields. To disable StdWXCalculate 
>> edit weewx.conf and locate the process_services setting under [Engine] 
>> [[Services]]. It should look something like this:
>>
>> process_services = weewx.engine.StdConvert, weewx.engine.StdCalibrate, 
>> weewx.engine.StdQC, weewx.wxservices.StdWXCalculate
>>
>> just put a # in front of the StdWXCalculate service as follows:
>>
>> process_services = weewx.engine.StdConvert, weewx.engine.StdCalibrate, 
>> weewx.engine.StdQC #, weewx.wxservices.StdWXCalculate
>>
>> save and stop WeeWX if running and then run directly 
>> <http://weewx.com/docs/usersguide.htm#Running_directly> again. This time 
>> you should see no derived fields added and what you see should be coming 
>> from the driver. What pressure field is provide and if it is pressure is 
>> it indeed station pressure? If this is the case then the issue lies 
>> elsewhere, if not then the driver needs some scrutiny.
>>
>> Gary
>>
> -- 
> You received this message because you are subscribed to the Google Groups 
> "weewx-user" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to weewx...@googlegroups.com .
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/weewx-user/df992563-d738-4f4d-90ec-ec68c3b995b5%40googlegroups.com
>  
> <https://groups.google.com/d/msgid/weewx-user/df992563-d738-4f4d-90ec-ec68c3b995b5%40googlegroups.com?utm_medium=email_source=footer>
> .
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/6aec3d88-c737-4354-8d8f-792e1e416536%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

I have confirmed and to the best of my knowledge, the station altitude is 
set correctly (altitude = 2320 foot).

When I run weewx directly (sudo weewxd weewx.conf) I get the following:

Traceback (most recent call last):
  File "/usr/bin/weewxd", line 64, in 
weewx.engine.main(options, args)
  File "/usr/share/weewx/weewx/engine.py", line 852, in main
sane = os.stat(config_path).st_ctime
OSError: [Errno 2] No such file or directory: '/home/pi/weewx.conf'

I really do not understand what that means.  I went and looked at line 64 
and 852 but don't know enough to see a problem.  I understand the last line 
because my config file is at /etc/weewx/weewx.conf.  Is there another way 
to run it directly?

Once I get past this step, I can try the other suggestions you had.

On Tuesday, February 11, 2020 at 2:03:38 AM UTC-8, gjr80 wrote:
>
> Sorry, only use hPa here so the obvious nonsense inHg value was lost on me.
>
> WeeWX is flexible enough that you change whatever you want to display on 
> your web page, you can use another field or recalculate using whatever you 
> like, it's just a case of altering the appropriate template. Similarly, you 
> can change what is sent to WU, WeeWX is coded to send field barometer, to 
> change that you need to dig into the code and your changes would likely not 
> be safe across an upgrade.
>
> In terms of solutions, one obvious check is that you have your station 
> altitude set correctly in weewx.conf. You are after the altitude setting 
> under [Station]. If altitude is set correctly then the solution is in the 
> driver. The WS-2813 driver emits pressure and WeeWX calculates barometer 
> and altitude. Have you run WeeWX directly 
>  to see what 
> pressures are being include in loop packet and archive records. You should 
> see all three pressures included as the data sent to console is after WeeWX 
> has augmented the packet/record with whatever derived fields it can.
>
> Unfortunately it looks like the WS-2813 driver cannot be run stand alone 
> which would be handy to see exactly what data is coming from the driver (as 
> opposed to running WeeWX directly which include driver and WeeWX calculated 
> fields). You can driver only data by disabling the WeeWX StdWXCalculate 
> service that calculates the additional fields. To disable StdWXCalculate 
> edit weewx.conf and locate the process_services setting under [Engine] 
> [[Services]]. It should look something like this:
>
> process_services = weewx.engine.StdConvert, weewx.engine.StdCalibrate, 
> weewx.engine.StdQC, weewx.wxservices.StdWXCalculate
>
> just put a # in front of the StdWXCalculate service as follows:
>
> process_services = weewx.engine.StdConvert, weewx.engine.StdCalibrate, 
> weewx.engine.StdQC #, weewx.wxservices.StdWXCalculate
>
> save and stop WeeWX if running and then run directly 
>  again. This time 
> you should see no derived fields added and what you see should be coming 
> from the driver. What pressure field is provide and if it is pressure is 
> it indeed station pressure? If this is the case then the issue lies 
> elsewhere, if not then the driver needs some scrutiny.
>
> Gary
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/df992563-d738-4f4d-90ec-ec68c3b995b5%40googlegroups.com.

Re: [weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Agreed.  If this is the case, can I configure weewx to show a different 
pressure?  If so, how do I do that?

On Monday, February 10, 2020 at 6:00:07 AM UTC-8, ln77 wrote:
>
> 33” is clearly too high for the barometric pressure. It is within spitting 
> distance of what you would get if the pressure is corrected for your 2300’ 
> elevation twice. Maybe the station is giving the corrected pressure but 
> weewx is configured to think it’s the uncorrected pressure?
>
>   -Les
>
>
> On Feb 9, 2020, at 6:00 PM, Dan Blanchard  > wrote:
>
> 
> OK, let me absorb this information a bit and see what I can figure out.
>
> On Sunday, February 9, 2020 at 4:56:30 PM UTC-8, gjr80 wrote:
>>
>> On Monday, 10 February 2020 10:35:37 UTC+10, Dan Blanchard wrote:
>>>
>>> My station labels it as 'Pressure inHg' which is currently 30.30 and 
>>> matches others in the area.
>>>
>>
>> I presume you mean the station display. The use of 'Pressure' is 
>> consistent with it being station pressure but it could mean anything, would 
>> not be the first time weather station hardware manufacturers have been 
>> vague, liberal with the truth or just wrong.
>>
>> So I am a bit confused between what you said about barometric pressure 
>>> vs. raw pressure.
>>>
>>
>> Did you read the wiki article about the three different pressures that 
>> WeeWX uses? Could you explain what it is that confuses you?
>>  
>>
>>> Ultimately, is there a fix for me?  Can I make some kind of adjustment?
>>>
>>
>> Not sure what you are trying to fix, if the issue is that you want 
>> everything to display the same value then sure there are changes you can 
>> make. Since you can't change what the station hardware displays you need to 
>> change what WeeWX and WU displays. Changing what WeeWX displays is easy, as 
>> I said its a simple change to a template. Changing what WU displays is more 
>> complex and involves changing the WeeWX WU uploader to upload WeeWX field 
>> pressure instead of field barometer. If you go down this path you need 
>> to accept a few things. Firstly, your WU data will be inaccurate (it 
>> expects barometric pressure and you will be sending it station pressure). 
>> Secondly, your changes to the template will be safe but your changes to the 
>> WU uploader will likely be overwritten each time you upgrade WeeWX.
>>
>> I am not familiar with the WS-2813 so do not know if there is any ability 
>> to change what pressure it displays, I suspect there will not be a means 
>> though.
>>
>> At the end of the day you might be displaying a different value to a lot 
>> of other folks, doesn't make them right and you wrong though.
>>
>> Gary
>>
>>
>>
>>
>>
>>
>>> On Sunday, February 9, 2020 at 4:29:42 PM UTC-8, gjr80 wrote:
>>>>
>>>> Slightly, but still apples and oranges. By default WeeWX displays 
>>>> barometric pressure so WeeWX and WU displaying the same 'pressure' is 
>>>> expected behaviour. The 'pressure' displayed by WeeWX can be changed with 
>>>> a 
>>>> simple change to a template, unfortunately what cannot be changed is what 
>>>> WU expects and (usually) what your station hardware displays.
>>>>
>>>> Gary
>>>>
>>> -- 
> You received this message because you are subscribed to the Google Groups 
> "weewx-user" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to weewx...@googlegroups.com .
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/weewx-user/c43f41d0-2280-4c62-b425-4ba19baa3f21%40googlegroups.com
>  
> <https://groups.google.com/d/msgid/weewx-user/c43f41d0-2280-4c62-b425-4ba19baa3f21%40googlegroups.com?utm_medium=email_source=footer>
> .
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/a4cc5af3-e7e1-4898-a458-0916dd167e09%40googlegroups.com.

[weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

OK, let me absorb this information a bit and see what I can figure out.

On Sunday, February 9, 2020 at 4:56:30 PM UTC-8, gjr80 wrote:
>
> On Monday, 10 February 2020 10:35:37 UTC+10, Dan Blanchard wrote:
>>
>> My station labels it as 'Pressure inHg' which is currently 30.30 and 
>> matches others in the area.
>>
>
> I presume you mean the station display. The use of 'Pressure' is 
> consistent with it being station pressure but it could mean anything, would 
> not be the first time weather station hardware manufacturers have been 
> vague, liberal with the truth or just wrong.
>
> So I am a bit confused between what you said about barometric pressure vs. 
>> raw pressure.
>>
>
> Did you read the wiki article about the three different pressures that 
> WeeWX uses? Could you explain what it is that confuses you?
>  
>
>> Ultimately, is there a fix for me?  Can I make some kind of adjustment?
>>
>
> Not sure what you are trying to fix, if the issue is that you want 
> everything to display the same value then sure there are changes you can 
> make. Since you can't change what the station hardware displays you need to 
> change what WeeWX and WU displays. Changing what WeeWX displays is easy, as 
> I said its a simple change to a template. Changing what WU displays is more 
> complex and involves changing the WeeWX WU uploader to upload WeeWX field 
> pressure instead of field barometer. If you go down this path you need to 
> accept a few things. Firstly, your WU data will be inaccurate (it expects 
> barometric pressure and you will be sending it station pressure). Secondly, 
> your changes to the template will be safe but your changes to the WU 
> uploader will likely be overwritten each time you upgrade WeeWX.
>
> I am not familiar with the WS-2813 so do not know if there is any ability 
> to change what pressure it displays, I suspect there will not be a means 
> though.
>
> At the end of the day you might be displaying a different value to a lot 
> of other folks, doesn't make them right and you wrong though.
>
> Gary
>
>
>
>
>
>
>> On Sunday, February 9, 2020 at 4:29:42 PM UTC-8, gjr80 wrote:
>>>
>>> Slightly, but still apples and oranges. By default WeeWX displays 
>>> barometric pressure so WeeWX and WU displaying the same 'pressure' is 
>>> expected behaviour. The 'pressure' displayed by WeeWX can be changed with a 
>>> simple change to a template, unfortunately what cannot be changed is what 
>>> WU expects and (usually) what your station hardware displays.
>>>
>>> Gary
>>>
>>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/c43f41d0-2280-4c62-b425-4ba19baa3f21%40googlegroups.com.

[weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

My station labels it as 'Pressure inHg' which is currently 30.30 and 
matches others in the area.  So I am a bit confused between what you said 
about barometric pressure vs. raw pressure.

Ultimately, is there a fix for me?  Can I make some kind of adjustment?

On Sunday, February 9, 2020 at 4:29:42 PM UTC-8, gjr80 wrote:
>
> Slightly, but still apples and oranges. By default WeeWX displays 
> barometric pressure so WeeWX and WU displaying the same 'pressure' is 
> expected behaviour. The 'pressure' displayed by WeeWX can be changed with a 
> simple change to a template, unfortunately what cannot be changed is what 
> WU expects and (usually) what your station hardware displays.
>
> Gary
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/69c6a38a-d8bd-46a2-bac4-6123f4117b13%40googlegroups.com.

[weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Thanks Gary, I think I understand what you are saying but the information 
going to WU is the same as my file at /var/www/html/weewx/index.html.  Does 
that change your answer?

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/164dd263-98df-45c6-b630-69be43564e97%40googlegroups.com.

[weewx-user] Re: Mismatch Between Hardware and weeWX Data

[Dan Blanchard]

Thanks Gary, I think I understand what you are saying but the information 
going to WU is the same as my file at /var/www/html/weewx/index.html.  Does 
that change your answer?

On Sunday, February 9, 2020 at 4:21:15 PM UTC-8, gjr80 wrote:
>
> Hi,
>
> I suspect this is a case of comparing apples to oranges. WU wants to 
> receive barometric pressure which is pressure corrected for altitude and 
> pressure (and frequently humidity), but judging by the WeeWX Hardware 
> Guide <http://weewx.com/docs/hardware.htm#ws28xx_data94> I suspect your 
> station displays station or gauge pressure which is the raw absolute 
> pressure. You can read about the three different pressures used by WeeWX 
> <https://github.com/weewx/weewx/wiki/Barometer,-pressure,-and-altimeter> 
> in the wiki.
>
> I can't comment on what your previous software did in terms of which of 
> the pressures it sent to WU but perhaps it did not sent barometric pressure 
> or perhaps I am wrong about what your station displays :)
>
> Gary
>
> On Monday, 10 February 2020 09:36:51 UTC+10, Dan Blanchard wrote:
>>
>> I've been running my weather station on weeWX for 2 days now after 
>> switching from a PC based solution for the past several years.  I noticed 
>> this problem after noticing that my station is no longer showing on the 
>> WeatherUnderground (WU) maps.  The data is still showing for my site on WU 
>> though (https://www.wunderground.com/dashboard/pws/KIDPOSTF43)
>>
>> Everything has been going fine except I am currently having a problem 
>> with data inaccuracies.  All the data seems correct except the barometer 
>> reading.  The reading on my hardware is currently 30.30 and weeWX is 
>> showing 33.093 which is what is reporting to WU.
>>
>> Can anyone please shed some light on this issue?  I've attached the 
>> syslog for reference.  Please let me know if there is anything else I can 
>> provide to help with this situation. If the solution requires changes in 
>> the configuration file, please be specific as I am still learning the Linux 
>> stuff.
>>
>> Thanks,
>>
>> Dan
>>
>>
>> Hardware: Lacrosse WS-2813
>>
>>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/weewx-user/01db6ea1-f94a-4a00-9422-3aa4a5d32bf0%40googlegroups.com.

[weewx-user] Re: LaCrosse 2813U on Rpi Zero W - A little help for the new guy please

[Dan Blanchard]

Andrew, I understand your point and meant to send the log but got wrapped 
up in thinking it was working last night.  Which log are you asking for? 
 There are several logs at /var/log

On Wednesday, July 12, 2017 at 10:31:17 PM UTC-7, Andrew Milner wrote:
>
> As Matthew said in his post - attaching the log from just before start-up 
> of weewx would help us all to know exactly what is happening, and what (if 
> any) error messages you are receiving.
>
> If the log by itself does not provide all the information you may need to 
> stop weewx, set debug=1 in weewx.conf, restart weewx and get additional 
> debug information.
>
> Trying to help without seeing the log is a little bit like looking for a 
> needle in a haystack - virtually impossible!!
>
> The log is usually key to all problems, and seeing the log through the 
> whole start-up process up to the end of the first archive period usually 
> sheds some light on problems and issues in most situations.  Remember - the 
> log is the key!!
>
>
>
>
>
> On Thursday, 13 July 2017 08:09:45 UTC+3, Dan Blanchard wrote:
>
>> Further to this issue, I found that if I type sudo wee_device --info then 
>> press the [Set] button on my station, the Tx and Rx start communicating 
>> again for a few minutes. But I can't seem to keep them connected. 
>>
>> Is there some trick to keep them paired once I finally get them paired? 
>>  I'm going to leave it on overnight and see what happens.
>>
>>  
>>
>>
>> On Wednesday, July 12, 2017 at 9:06:27 PM UTC-7, Dan Blanchard wrote:
>>>
>>> Thanks for the info Gary, that was the problem, I got it to pair, but 
>>> then in un-paired after about 2-3 minutes.  Any thoughts there?
>>>
>>>
>>>
>>> On Wednesday, July 12, 2017 at 5:57:05 PM UTC-7, gjr80 wrote:
>>>>
>>>> On Thursday, 13 July 2017 10:28:36 UTC+10, Dan Blanchard wrote:
>>>>>
>>>>> usb.USBError: error sending control message: Operation not permitted 
>>>>>
>>>>
>>>> Hi,
>>>>
>>>> Sounds like a permission issue, try prefixing the command with sudo:
>>>>
>>>> $ sudo wee_device --pair
>>>>
>>>> Gary
>>>>
>>>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[weewx-user] Re: LaCrosse 2813U on Rpi Zero W - A little help for the new guy please

[Dan Blanchard]

Further to this issue, I found that if I type sudo wee_device --info then 
press the [Set] button on my station, the Tx and Rx start communicating 
again for a few minutes. But I can't seem to keep them connected. 

Is there some trick to keep them paired once I finally get them paired? 
 I'm going to leave it on overnight and see what happens.

 


On Wednesday, July 12, 2017 at 9:06:27 PM UTC-7, Dan Blanchard wrote:
>
> Thanks for the info Gary, that was the problem, I got it to pair, but then 
> in un-paired after about 2-3 minutes.  Any thoughts there?
>
>
>
> On Wednesday, July 12, 2017 at 5:57:05 PM UTC-7, gjr80 wrote:
>>
>> On Thursday, 13 July 2017 10:28:36 UTC+10, Dan Blanchard wrote:
>>>
>>> usb.USBError: error sending control message: Operation not permitted 
>>>
>>
>> Hi,
>>
>> Sounds like a permission issue, try prefixing the command with sudo:
>>
>> $ sudo wee_device --pair
>>
>> Gary
>>
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[weewx-user] Re: LaCrosse 2813U on Rpi Zero W - A little help for the new guy please

[Dan Blanchard]

Thanks for the info Gary, that was the problem, I got it to pair, but then 
in un-paired after about 2-3 minutes.  Any thoughts there?



On Wednesday, July 12, 2017 at 5:57:05 PM UTC-7, gjr80 wrote:
>
> On Thursday, 13 July 2017 10:28:36 UTC+10, Dan Blanchard wrote:
>>
>> usb.USBError: error sending control message: Operation not permitted 
>>
>
> Hi,
>
> Sounds like a permission issue, try prefixing the command with sudo:
>
> $ sudo wee_device --pair
>
> Gary
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[weewx-user] Re: LaCrosse 2813U on Rpi Zero W - A little help for the new guy please

[Dan Blanchard]

Thanks for the replies.  I've tried the instructions provided at the link 
from Andrew and it is still not pairing  (at least I assume it is not 
pairing because I do not see "PC" in the LCD screen of my weather station 
like I do when it is running on my Windows PC.

I've run the command *sudo /etc/init.d/weewx stop* to stop running weewx 
(assuming it is running).

Then I run the following and get the results below:

pi@weewx:~ $ wee_device --pair
Using configuration file /etc/weewx/weewx.conf
Using WS28xx driver version 0.35 (weewx.drivers.ws28xx)
Traceback (most recent call last):
  File "/usr/bin/wee_device", line 54, in 
main()
  File "/usr/bin/wee_device", line 51, in main
device.configure(config_dict)
  File "/usr/share/weewx/weewx/drivers/__init__.py", line 69, in configure
self.do_options(options, parser, config_dict, prompt)
  File "/usr/share/weewx/weewx/drivers/ws28xx.py", line 1098, in do_options
self.station = WS28xxDriver(**config_dict[DRIVER_NAME])
  File "/usr/share/weewx/weewx/drivers/ws28xx.py", line 1315, in __init__
self.startUp()
  File "/usr/share/weewx/weewx/drivers/ws28xx.py", line 1437, in startUp
self.serial, comm_interval=self.comm_interval)
  File "/usr/share/weewx/weewx/drivers/ws28xx.py", line 4033, in setup
self.shid.open(vendor_id, product_id, device_id, serial)
  File "/usr/share/weewx/weewx/drivers/ws28xx.py", line 3089, in open
self._open_device(device)
  File "/usr/share/weewx/weewx/drivers/ws28xx.py", line 3128, in 
_open_device
loginf('manufacturer: %s' % self.devh.getString(dev.iManufacturer,30))
usb.USBError: error sending control message: Operation not permitted

I hope somebody can help me decipher this so I can move on the 
synchronization.


On Tuesday, July 11, 2017 at 4:53:33 AM UTC-7, mwall wrote:
>
> On Tuesday, July 11, 2017 at 12:08:13 AM UTC-4, Dan Blanchard wrote:
>>
>> I understand how to edit the config files but cannot find instructions on 
>> how to access the charts and graphs either.  But I assume they will not 
>> show up until my Tx and Rx are communicating.  Will someone be kind enough 
>> to point me to the 'extensive' instructions on how to tell my Tx and Rx to 
>> synchronize?
>>
>
> dan,
>
> assuming that your transceiver and station have been paired, they should 
> sync automatically at the top of the hour, so you might just have to wait.  
> you can force a sync sooner by pressing a key on the weather station 
> console.  as andrew pointed out, detailed instructions are in the weewx 
> user guide.
>
> however, you might want to first confirm that the console is paired, then 
> find out if lack of sync is your problem.  the log file will tell you this.
>
> please post the log from just before the time that you started weewx.
>
> m 
>

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[weewx-user] LaCrosse 2813U on Rpi Zero W - A little help for the new guy please

[Dan Blanchard]

GOAL: Install and run WeeWX on a *Raspberry Pi Zero W* with a *LaCrosse 
WS-2813U* and upload to *Weather Underground*.

OK, I've spent every night the past week trying to get WeeWX to run with no 
luck so I am turning here for some expert help.  I've been all over this 
forum and cannot find what I am looking for.  I believe that I have it 
properly installed per the instructions at weeWX: Installation on 
Debian-based systems  but I cannot 
figure out how to synchronize the LaCrosse transmitter and receiver.  I 
know they work because I have been using them on my PC based system running 
Heavy Weather software which has a synchronization feature in the software. 
This install is on  a Raspberry Pi Zero W.

I understand how to edit the config files but cannot find instructions on 
how to access the charts and graphs either.  But I assume they will not 
show up until my Tx and Rx are communicating.  Will someone be kind enough 
to point me to the 'extensive' instructions on how to tell my Tx and Rx to 
synchronize?

Once I get it running, I will want to know how to upload to Weather 
Underground so I can keep my station working.  I haven't found good 
instruction on that either.  I think I just don't know enough about Linux 
to 'read between the lines' in the provided instructions.

Thanks for any help.

Dan

-- 
You received this message because you are subscribed to the Google Groups 
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to weewx-user+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.