Recent Posts

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1
Davis Instruments Weather Stations / Re: DIY "GREEN DOT" Data Logger
« Last post by 92merc on Today at 09:12:37 AM »
My idea was to basically create a replacement for the Virtual VP program.  Have a PI receive the data via SDR.  Then have a small database running on the PI.  Have it dish out the live data just like Virtual VP did.  Ideally via IP and multiple ports, and possible a serial driver.

Then have the data base store a history, basically like the data logger.  But also keep a history of when the last communication a particular port handed out the data.  Have a couple of weeks worth of data similar to what VVP could have done.

Like I said, I'm not a programmer.  But if you'd combine a copy of weewx or Cumulus MX on the same machine, you'd have a potent little device.  And you'd run it a lot cheaper than a second console and logger.  But you'd still need a barometer connected to it as well as probably an inside temp if you truly are replacing the console.
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Weather Website PHP/AJAX scripting / Re: Voice Enabled METAR Reports
« Last post by miraculon on Today at 08:48:21 AM »
Interesting. It has a natural sounding voice.

A possible alternative to this might be an Air Band receiver set to receive the local airport AWOS. I can receive my local station KPZQ on WX AWOS-3: 118.125 MHz.

Something like the Weather Radio project could be used to port the audio. My local station updates every minute. My Ham 2 meter receiver can pick up the aircraft VHF range on AM quite well since I am less than a mile away.

Greg H.
3
I have a Davis VP2 (with Aerocone for the summer, old cone & heater for the winter). I also have a NovaLynx 8" TBR and a CoCoRaHS gauge. When winds are light and rain is straight down, I have had close agreement between all three (+/- 0.01). When winds are significant they can vary by several hundredths of an inch.

I have calibrated the NovaLynx with their calibrator and checked the Davis against the calibrator as well.

I have a small back yard which violates the placement guidelines for rain gauges.

Having said this, I agree with others that the pre-Aerocone Davis seems to have a propensity for under counting, not over counting when wind is present.

It might be worthwhile inspecting the reed switch and connector in the ISS SIM. Also a frayed and intermittent cable could cause problems if the exposed rain switch wires are contacting each other.

Greg H.
4
If you had a consistent proportional error observed across a wide range of wind conditions and rain rates you would have a suitable situation for adjustment by calibration. Otherwise you are quite likely in calibrating to tune for agreement in one particular condition which may not be the best overall for your future experience.
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Weather Website PHP/AJAX scripting / Re: Sun Moon Error from USNO
« Last post by wvdkuil on Today at 08:09:21 AM »
Has something changed on the Sun and Moon info that we import?  I'm getting this on my home page.


Warning: Invalid argument supplied for foreach() in /home2/reepps/public_html/get-USNO-sunmoon.php on line 360

Warning: Invalid argument supplied for foreach() in /home2/reepps/public_html/get-USNO-sunmoon.php on line 371 


Thank you,

Ron
Today, as happened a few times before the last weeks, the USNO server does not return any data at all.
You are using Ken's script which has an extra setting for this situation: http://www.oakridgewx.net/get-USNO-sunmoon.php?sce=view
Change line 69 in get-USNO-sunmoon.php from
Code: [Select]
  $useUSNO = true; // =true; use USNO data, =false; use computed values only (not as accurate) to m
Code: [Select]
  $useUSNO = false; // =true; use USNO data, =false; use computed values only (not as accurate) until the USNO servers ia available again,

Wim
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Weather Website PHP/AJAX scripting / Sun Moon Error from USNO
« Last post by powerline on Today at 07:31:58 AM »
Has something changed on the Sun and Moon info that we import?  I'm getting this on my home page.


Warning: Invalid argument supplied for foreach() in /home2/reepps/public_html/get-USNO-sunmoon.php on line 360

Warning: Invalid argument supplied for foreach() in /home2/reepps/public_html/get-USNO-sunmoon.php on line 371 


Thank you,

Ron
7
First thing I would ask is "how close are the manual and the electronic gauges to one another?".
The reason I ask is my old setup was a Vantage Pro. It was starting to fail so I bought a Vantage Pro2 but it sat new in the box for a few years waiting for the old one to totally quit. I installed the new one a year ago and was sitting back fat and happy until I joined this group. Now I've become more critical of the info reported. Lucky for Me, I was approached by the Township Road and Wastewater Management crews to get a station running for them. We installed it about 2 Mi. from my home as the crow flies.

Back to the question at hand. I now have the luxury to observe 2 separate stations at the same time in a similar location.  I noticed you stated "sometimes". I've observed the two stations are not always reporting the same rainfall and/or rate. They vary +/- and it is not consistently an error in the same direction station to station. This tells not it is not a calibration  error in one station or the other. I DID notice the the Township station gets a lower accumulation in a very light misty drizzle. I do have a rain cone heater installed on that one and thought possibly there was some evaporation. So since snow season is over, I asked them to turn off the heater.
One other difference is I have the AeroCone and they do not since they have the heater.

In last night's light/medium rainfall they are running dead heat.
I guess all that I'm trying to say is it truly and error or is it an inconsistency introduced by some outside influence?
8

it was pretty easy to slot in and was easily able to use existing css structure so ill run it for a day test a few other station and job done i guess

screenshot shows easysetup options and it also populates other air quality data areas like in the area where users dont have solar or uv data hardware also has its own top module box if required.

thanks for idea ...have a good day


9
That looks great!

Btw, you can easily get the API ID for any station by clicking on one here:
https://www.purpleair.com/map

The ID is is in the url after clicking on a station like so detailsshowing=2812

Thanks a lot for adding this.
10
ok thanks for the email i used the google doc info and your ID

just uses a simple php json script.

its color coded accordingly i will polish it off next week and see if I can see other data from other users .

so not owning one I am your mercy on particular values it delivers and what would be displayed , i see other API data from
breezometer,aqicn,airnav there is more data .


anyway look out it for next week im guessing a top module option also would be a good option but this needs to be inserted
to the setup screen to allow non puprleair owners to disable.

many thanks for the quick response .will send along next week. ps its only available for meteobridge/cumulus version of template ..brian



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