meteohub.de

Hi,

I am setting up a WMR200 with NSLU2 and meteohub.
First, congrats for the solution, Boris.

I have these questions i have not solve, can anyone help?

Q1: I have this error message 5 times per hour, read in another thread it is a problem so you keep logging it but what is the consequence of it? (logger (13.04.2008 20:04:16): wrong checksum 0x030d while 0x2000 expected)

Q2: I am looking for a solution to setup a network of stations so i need as less maintenance as possible. I am using a 2GB USB card, that will fill in 1 month(right?) The question is if does it clean/recicly automatically or does it require \"manual\" intervention?

Q3: Graphs: Is it possible to change the position of the graph legend and point mark size? The min-med-max points are hard to read (5 or 10 minutes interval, 400x300 graph) so is it possible to put the point mark (max, avg and min) larger and line color dimmer? It is possible to change the date format?

Here is the URL of my current graph (had to remove the legend, put a image on top of the dates and make a min-avg-max manually)

Thanks!!

Hi,

I can help with some of your questions:
Q2: Mine has been running just over a month now, and I have used 4% of a 2GB card, not sure what happens when it fills though.
Q3: You can use the \"Format Cmd\" section to use GNU Plot commands. I didn't know how to do this but have found a couple of commands. I cleaned up my temp graph a little by sticking this command in:
set format x \"%H:%M\"|set grid nomxtics|set format y \"%.0f\"|set ylabel \"Degrees Centigrade\"|set lmargin 10
Maybe if people out there know more about GNUPlot we can start a thread to discuss formatting?

Hope that helps,
Alan

Thx for the valuabre GNU plot information. I will work on that and post results here!

According to the documentation, a 2GB card should hold about four years worth of data.

You can clone the card onto a larger one using the Clone function in system maintenance - presumably 4GB would hold eight years of data.

mvpel wrote:...presumably 4GB would hold eight years of data.

Or maybe more since, unless I'm misunderstanding things, the Meteohub application is on there and is presumably a fixed overhead no matter how large the drive?

Also I presume that the more sensors you have the quicker it will fill up? So I take it that the 'four years' is an approximate guideline - but it does suggest we ought to have plenty of time to plan the next move (though time of course has a habit of slippng by unnoticed...).

Maybe there is a case for a daily e-mail warning if free space is, say, less than 10% of the total?