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netatmo2wow

Automatic converter of Netatmo weather station data to Met Office Weather Observation Website WOW format.

The results can be displayed in:

The following parameters are processed:

- temperature
- humidity
- pressure at station
- accumulated rainfall in the last hour
- wind

Netatmo registeres new measurements each 5 minutes. Netatmo2wow will try to merge measurements of different modules into one WOW measurement if the timestamp of the different modules is less than 2 minutes apart. The most recent measurement will prevail. Only measurements with at least a temperature are uploaded. Netatmo2wow will store that last uploaded timestamp to avoid uploading duplicate measurements. Only more recent measurements than the last upload will be uploaded.

#Releases

For the latest release see:

#Netatmo registration

To access the netatmo data, the public Netatmo Api is used. See:

https://dev.netatmo.com/

Register for a api key of netatmo by creating an application:

https://dev.netatmo.com/dev/createapp After registration the following is provided:

  • Client id
  • Client secret

#WOW registration

Register a site at WOW of the metoffice. http://wow.metoffice.gov.uk/ After registration the following is provided:

  • Site ID
  • AWS Pin (create yourself).

Now with this information the netatmo2wow tool can be run as follows:

#Running netatmo2wow

java -jar netatmo2wow-1.1.jar
    -clientid <netatmo_client_id>
    -secret <netatmo_secret>
    -email <netatmo_email_account>
    -password <netatmo_password>
    -timeperiod 600
    -siteid <wow_siteid>
    -awspin <wow_aws_pin>

In this example the timeperiod has been set to 600 seconds (ten minutes). So running netatmo2wow will update all data from the last ten minutes in netatmo to WOW. In case a raingauge is included as well, a higher period is required because the accumulative hourly rainfall needs to be calculated. Settting the timeperiod to 7200 seconds (2 hours) is recommended.

#How to install?

Any system that can run a Java SE version 8 or higher can use this tool. Typically a batch file or shell script should be created that can be run from a scheduled job using a task scheduler or cron job. Scheduling the job every 5 minutes should do the job. Tool was tested on:

  • Synology NAS with DSM 4.3
  • Raspberry PI with OpenElec

#Synololgy NAS server configuration example

A tested setup with a Synology NAS server is as follows:

  • Synology DSM 4.3
  • Java SE Development Kit 8 Update 33 for ARM
  • Cron job on synology that runs every 5 minutes (edit as root):
    */5   *   *   *   *   root   /bin/su -c "/volume1/public/netatmo/r.sh" admin
  • Restart cron scheduler on synology server as root.
synoservice -restart crond
  • Executable script r.sh that runs netatmo2wow:
    /volume1/public/java/jdk1.8.0_33/bin/java -jar netatmo2wow-2.2.jar -clientid ......

test