WXNOW Generator

One of the unfortunate limitations of Davis' Weatherlink software is the inability to conveniently interface with the various APRS software packages (specifically UI-View) to beacon your weather station data to RF.
In the summer of 2005, Davis released an SDK to allow software authors to write add-ins for WeatherLink to provide certain additional functionality. I decided to write an add-in to generate a WXNOW.TXT file compatible with the requirements of UI-View (which I use). While the initial add-in was quick to write, once I put it out for beta test I soon found that there are a few bugs in the SDK, a few calculations that are much more difficult to get right than they should be, and some limitations with older Davis weather stations.
Many thanks to my beta testers, who often had to do a lot of work with their older stations to supply me the data I needed to figure out the limitations (and bugs). This is the culmination of their effort just as much as mine.
Within the Zip is a text file with installation instructions. Enjoy.

Release 1.0.0 - 15 May 2006

Click here to download.

See also my APRS page here.

Comments or suggestions for improvement welcome. Send me E-mail.

Blanket permission granted to distribute and/or "advertise" this sample, provided it's left intact. If you fix any bugs, or make any improvements, please let me know so that I can keep my "master" updated.

Want another way?

SoftWX has recently implemented added an enhancement to their free VPLive utility. This will interface with your Davis Vantage Pro, extract all the data and (among many other things) generate the WXNOW.TXT file suitable for use with your APRS software. You still need the Davis datalogger, but for those wanting simple data gathering without the additional "bloat" of the larger software packages, this might be just the ticket. I'm not involved with this product at all, just an impressed fellow developer.

For more information, check out SoftWX's site here.