OK. Just get it. Here is the trick I was suspecting…
First of all, just a bit of theory
Netatmo collects/compute 3 types of data regarding rain:
– Rain rate in mm/h (milimeters per hour)
– Cumulated rainfall for the last hour in mm (milimeters)
– Cumulated rainfall for the current day in mm (millimeters)
Rain rate is an « instantaneous » value which measures the « flow » of the rain. It is, by definition a very fluctuant value.
Cumulated rainfall (for X hours) measures the true quantity of rain that has fall in X hours.
Rain rate and cumulated rainfall for 1 hour are not measuring the same thing (and so, have not the same measurement unit :)) and if you see something measured in mm it’s cumulated rainfall and if you see something in mm/h it’s a rate (a flow)…
That’s the theory. But in fact, Netatmo was a little confused while designing the interfaces of its various apps.
In the web interface, all is OK, the two given values are cumulated rainfall for last hour and for today. Their units are mm. Great 😉
BUT: in the mobile interfaces (iOS and maybe Android, but I can test it), the big value displayed is cumulated rainfall for the last hour but Netamo made a mistake : they display mm/h as unit. It’s wrong. It must be mm!
Did you see the trick?
So, to summarize:
All values collected and displayed by Live Weather Station are rights.
All units displayed by Live Weather Station are the right units for the right measurements (but that’s not the case in Netatmo mobile interfaces).
If you want to display rain rate, just set up the shortcode as you already done it.
If you want to display the same value as in Netatmo interfaces, just use the shortcode for cumulated rainfall, the units that will be show are the right one…
I hope I’ve been clear on this subject despite my low level of English. Feel free to tell me if it deserves to be more precise.
Best regards.
Pierre
