Buienradar (Rain radar) for NL and BE users

[mvdarend]

Buienradar is a Dutch language site which shows the current and expected rainfall for Belgium and the Netherlands.

They have a simple feed for retrieving expected rainfall for the coming two hours.

This is a first version of a Rainfall widget, so it's probably a bit buggy and the code definitely needs a clean up. But I wanted feedback about how to improve, any help will be greatly appreciated.

You can set the following parameters:

• Latitude
• Longitude
• Refresh rate in minutes
• Threshold - (for example .05)

It outputs the following:

• Buienradar.RawData - Used to populate the 'Rain Graph'
• Buienradar.RainExpected - number of minutes until rain is expected (zero if no rain expected)
• Buienradar.RainThresholdExpected - number of minutes untill rain over the given threshhold is expected (zero if no rain expected)

Place the files in the zip in the following folder: homegenie/html/pages/control/widgets/Arend/buienradar

Edit: 08-07-2015 uploaded latest versions of files.

Edit: 07-08-2015 uploaded new version with changes by Dani

Edit: 28-08-2015 New widget files (buienradar.zip) which shows Rain radar map when clicking on the widget.

[mvdarend]

A few people downloaded this yesterday, but I accidently had uploaded the wrong widget files. You'll need to download the new .zip file for the correct version.

[KaZe]

It's works for me. Thx

[mvdarend]

It's works for me. Thx

Thanks for the feedback KaZe.

I've noticed a couple of things that need work.

The feed usually has a start time of approx. 10 minutes earlier than the current time. The calculation in the current version is not very good, it doesn't look at the actual times but counts 5 minutes for every data point. For example if you retrieve the feed at 10:00 the start timeof the feed will most likely be 09:50, if rain is expected at 10:05 the value for RainExpected will be 15 instead of 5)

Graph could probably be more active, changing bar sizes depending on the maximum rain value expected.

[Peter1977]

great! i'll try it out tommorow

thanks!

[mvdarend]

I've uploaded a new version with the following changes:

- Threshold spelt properly...
- Cleaned up the code a little
- Added more info to the widget (Max. rainfall expected).
- RainExpected and RainThresholdExpected now give the actual amount of minutes until rain is expected instead of a very badly calculated guess.

I've noticed that the feed will often give false rain values with a very low amount of rain expected. As far as I can see it is always below 0.05 mm per hour, so you can always set  the Threshold to that.

Here's a quick C# example for closing the Awning when rain is expected:

Code: [Select]

When.ModuleParameterChanged( (module, parameter) =>
                            {                             
                              if (module.Is("Buienradar"))
                              {         
                                if(parameter.Name == "Buienradar.RainThresholdExpected" && parameter.Value != "0")
                                {
                                  // Rain expected Close the Awning
                                  Modules.WithName("Awning").Off();
                                  return false;
                                }
                              }
                              return true;
                            });

[mvdarend]

I've uploaded a final(?) version with the following changes:

- Obsolete functions replaced with new ones (AddOption, UseWidget, Option)
- Rain graph fits in the widget better
- Max. rain expected info.
- Legend showing colors/rainfall info
- Tooltip when hovering over graph (was in previous version, but I forgot to mention it)

[mvdarend]

The error trapping isn't very good, sometimes when there is an error or empty data the APP crashes. I'm testing a new version at the moment, I'll upload it in a couple of days (if it proves to be more stable.)

[mvdarend]

New version with better error handling.

[mvdarend]

Just uploaded another new version of the .hgx file, the previous one still crashed every now and again. This version has been running for over a week without issue.

[NicoVermeir]

can't seem to get this to work. I copied the files from the zip into the right folder, it shows up in the widget section but I can't get it to appear in the add module dialog. how do I add this to a group?

[dani]

You have to put the widget zip files in the folder /usr/local/bin/homegenie/html/pages/control/widgets/Arend
For me in France that work.
Only I need to modify the line 50 by that code :
double RainThreshold = Program.Option("RainThreshold").DecimalValue;
Instead of I got Program Notify Error : CR Unknown And Red light for the program. I am running on Debian and Convert.ToDouble generate that error.

[mvdarend]

can't seem to get this to work. I copied the files from the zip into the right folder, it shows up in the widget section but I can't get it to appear in the add module dialog. how do I add this to a group?

Does the imported .hgx file work, or are you seeing the same problem that Dani has?

If you can start the APP, and it gets a little green ball it should show up in the Add module dialog.

Dani, is it possible that you're running a different version of Mono? I'm running on a BananaPi, mono --version gives me this:
Mono JIT compiler version 3.2.8 (Debian 3.2.8+dfsg-4+rpi1)

[dani]

My mono version :
Mono JIT compiler version 4.0.1 (tarball Tue May 12 15:39:23 UTC 2015)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com

[NicoVermeir]

can't seem to get this to work. I copied the files from the zip into the right folder, it shows up in the widget section but I can't get it to appear in the add module dialog. how do I add this to a group?

Does the imported .hgx file work, or are you seeing the same problem that Dani has?

If you can start the APP, and it gets a little green ball it should show up in the Add module dialog.

Dani, is it possible that you're running a different version of Mono? I'm running on a BananaPi, mono --version gives me this:
Mono JIT compiler version 3.2.8 (Debian 3.2.8+dfsg-4+rpi1)

I tried the hgx, didn't seem to do anything. I then copied the files from the zip into the folder, now the widget shows up but when I try to run / preview it I get "TypeError: Unable to get property 'Name' of undefined or null reference
Line 27, Column 5"