(this post is automatically translated from the original Italian version for your convenience. Sorry in advance for errors)

Open3600 revised

This is an enhanced version of the library released by the excellent open3600 project on collection of C programs and libraries used to communicate with the 3600 Lacrosse Weather Station.
In this package you can find a working wu3600 program, (used to feed your data to Weather Underground station network), and a modified version of wu3600.c
I am currently using wu3600 to upload my station data to Weather Underground network.
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You are reading "Open3600 revised," a post from Fabrizio Zellini

Published: October 17, 2008

Categories: Weather

Jay December 6th, 2008 at 16:32

Hello, I have been compiling your patched version successfully, but neither of the binaries would produce any outputs. In log-level 5 they stop at "open_weatherstation.

The original version (0.2) works no problem, but there the wu3600 is missing. Acctually I am looking for cw3600. You do not happen to have the source of it handy? A binary would be even better.

Regards, Jay

Jay December 23, 2008 at 18:46

Hi, sad, I received no reply so far. On the other hand, I found the resolution. Dropping the compiler option "-O3" did the trick.

Jay

Tony March 29, 2009 at 3:20

Thanks Jay, your comment about dropping the compiler option certainly helped me out.

Best regards,
Tony

Tony September 14th, 2009 at 8:55

We are having very high winds today, over 100 km / h. I noticed that the maximum wind speed recorded by open3600 was 99.8 and thought that a little peculiar. It seems that the decoding does not include 100's.

To allow for wind speeds greater than 100, I have patched rw3600.c as follows:

471c471
<Ws_station = (tempData [1]>> 4) * 10 + (tempData [1] & 0xF) +
(tempData [0]>> 4) * 0.1 + (tempData [1] & 0xF) * 0.01;
--
> Ws_station = (tempData [2] & 0xF) * 100 + (tempData [1]>> 4) *
10 + (tempData [1] & 0xF) + (tempData [0]>> 4) * 0.1 + (tempData [0] &
0xF) * 0.01;
531c531
<WAS = (tempData [1] & 0xF) * 10 + (tempData [0]>> 4) +
(tempData [0] & 0xF) * 0.1;
--
> WAS = (tempData [1]>> 4) * 100 + (tempData [1] & 0xF) * 10 +
(tempData [0]>> 4) + (tempData [0] & 0xF) * 0.1;
539c539
<WAS = (tempData [1]>> 4) * 10 + (tempData [1] & 0xF) +
(tempData [0]>> 4) * 0.1;
--
> WAS = (tempData [2] & 0xF) * 100 + (tempData [1]>> 4) * 10 +
(tempData [1] & 0xF) + (tempData [0]>> 4) * 0.1;

Fabrizio Zellini

Open3600 revised

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