Re: [weewx-user] newbie information requested

[Thomas Keffer]

Hello, Pete and welcome to weewx.

I don't have any immediate experience with Centos, but I doubt that porting weewx to it would be very hard. Most of the hard work is taken care of by Python. In my experience, setting up the daemon is the hardest part of porting to a new OS.

Out of the box, weewx supports the Weather Underground, but not their RapidFire protocol. Adding it would not be terribly difficult (it's very similar to their "ordinary" post). If you're a programmer you could do it yourself, or you could wait until I do it. 

Seriously, it's been on my list. I'll eventually get around to it.

-tk

On Fri, Jul 6, 2012 at 6:16 AM, pgeenhuizen <pe...@geenhuizen.net> wrote:

I've been using a La Cross 2315 WS for about 10 years and apparently a storm yesterday took it out, so I'm looking for a replacement.
My problem is that I'm using Centos 6 and it's hard to find software that will work.

I looking through Weather Underground a came across Weewx, I've looked at he software requirements and it looks with the exception of pyserial all the software is available via yum.  I got the pyserial software tar file and got it installed.

So my question is before I spring for a Davis Vantage Vue weather station, does anyone know if this will work, and if so how well does it work with Weather Underground's rapid fire?

Any observations and insight would be greatly appreciated.

Thanks
Pete

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[Pete Geenhuizen]

Tom,
Thanks for the welcome and fast response.

I'm not a programmer by any stretch of the imagination, Considering that all the software listed for Fedora is available for Centos, with one exception pyserial which I installed from source, would you expect that this is would be a port of the software?

RapidFire would be nice, but isn't a show stopper for me, like I said my biggest hurdle is to simply get some software that will pull the data from the weather station and be able to post it, and I can certainly wait for some other kind soul to create the RapidFire capability.

On another note, from what I can gather all I need to get is the Vantage Vue weather station, I don't need anything else do I?

Pete

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[Thomas Keffer]

I'm not going to guarantee it, but I doubt that the port to Centos will be a problem. Weewx is 100% pure Python, so wherever Python goes, it goes. Weewx has been run on everything from a BeagleBoard, to a SheevaPlug, to MacOS, so I'm pretty confident a Centos port will be uneventful.

Unfortunately, yes, you do need one more thing besides the VantageVue. if you want to connect their weather stations to a computer, Davis makes you buy a "serial logger" in addition to the weather station. It comes with their "WeatherLink" software. You buy the package, throw away the software. Considering that the logger is nothing more than a 1MB chip, the $165 price tag is pretty outrageous but, sorry, that's the way they do it! 

They offer two kinds: a serial interface, or a USB interface. The former has proven to be more reliable, but nowadays not all computers have a serial port. 

Try shopping around. You can get the serial version for $150 or a bit less from Ambient.

-tk

[Pete Geenhuizen]

Thom,
I would tend to agree with you, if I can't get it to work, I could do it on Fedora Core, but that isn't my preference.

Drat! I was hoping that I wouldn't need the the serial logger.  I've found what looks to be a pretty decent deal on the VantageVue for $256, and the WeatherLink serial logger for $116, so for less than what Davis wants for just the VantageVue station I can get both.

Well many thanks for the info, I now need to decide if I want to go this route.

Pete

[Thomas Keffer]

Drat! I was hoping that I wouldn't need the the serial logger.  I've found what looks to be a pretty decent deal on the VantageVue for $256, and the WeatherLink serial logger for $116, so for less than what Davis wants for just the VantageVue station I can get both.

Well, you could always build your own!

http://madscientistlabs.blogspot.com/2011/10/build-your-own-davis-console-datalogger.html

-tk 

[Pete Geenhuizen]

Interesting, I'll have to give that some thought.

Thx

On 07/06/2012 02:33 PM, Thomas Keffer wrote:

Well, you could always build your own!

http://madscientistlabs.blogspot.com/2011/10/build-your-own-davis-console-datalogger.html

-tk 

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[vds]

On Friday, July 6, 2012 6:16:08 AM UTC-7, pgeenhuizen wrote:

I've been using a La Cross 2315 WS for about 10 years and apparently a storm yesterday took it out, so I'm looking for a replacement.
My problem is that I'm using Centos 6 and it's hard to find software that will work.

I used to run CentOS-5 on a Shuttle x86 box using first 'wview' and later moving to weewx, so there probably shouldn't be any reason you can't get weewx to run on CentOS-6.

The usual problem with CentOS is that it is intended to be long-term-stable meaning not bleeding edge, so it can be a bit pain getting newer packages or python libraries to build and install.  CentOS-6 isn't too bad (yet).

I had the same (lame) LaCrosse model you're coming from.  You're not going to miss it once you get to a Davis.

[vds]

On Friday, July 6, 2012 6:16:08 AM UTC-7, pgeenhuizen wrote:

I've been using a La Cross 2315 WS for about 10 years and apparently a storm yesterday took it out, so I'm looking for a replacement.
My problem is that I'm using Centos 6 and it's hard to find software that will work.

I might add, my recommendation is 'spend the money' for the Davis logger (serial version).   While you could possibly build your own, the cool part about the Davis one is it stores a week+ of data, meaning if your computer goes down you won't lose any data at all.  Weewx is fabulous at catching up - it will load whatever hasn't been processed and it even uploads everything to Weather Underground quite automagically.

[Pete Geenhuizen]

Thanks for the info, and it's nice to get some confirmation that my plan will most likely work.

On 07/09/2012 01:44 PM, vds wrote:

On Friday, July 6, 2012 6:16:08 AM UTC-7, pgeenhuizen wrote:

I might add, my recommendation is 'spend the money' for the Davis logger (serial version).   While you could possibly build your own, the cool part about the Davis one is it stores a week+ of data, meaning if your computer goes down you won't lose any data at all.  Weewx is fabulous at catching up - it will load whatever hasn't been processed and it even uploads everything to Weather Underground quite automagically.

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