OpenSprinkler Forums OpenSprinkler Unified Firmware Water Level Log question.

  • This topic has 1 reply, 2 voices, and was last updated 5 years ago by Ray.
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  • #41577

    george
    Participant

    Hi.
    What is the logic behind the Water Level logging?
    From what I can see, it logs once per hour. Is this the actual value that was calculated at that point in time? or is it an average that is calculated with several readings form the last hour?

    This is my output as of 13:21 Local Chile time.

    [[0,”wl”,121,1456045056]
    ,[0,”wl”,121,1456048658]
    ,[0,”wl”,121,1456052259]
    ,[0,”wl”,121,1456055861]
    ,[0,”wl”,121,1456059463]
    ]

    First, what I find strange that the first value is from 2016-02-21 08:57:36 (today), what happen to the rest from midnight?
    Second, why are all 5 readings at 121%? should this change during the day?

    Thanks…..

    #41598

    Ray
    Keymaster

    Every hour the firmware sends out a weather query. Upon successfully receiving the result of the query, it logs the water percentage number to SD card:
    https://github.com/OpenSprinkler/OpenSprinkler-Firmware/blob/master/weather.cpp#L113
    Whether this number changes during a day or not depends on how frequent the weather station nearby you updates the weather data. If the weather data hasn’t changed in 24 hours, the calculated watering percentage will remain the same. The Zimmerman algorithm (assuming this is what you selected under Weather Algorithms) uses the daily temperature, humidity, and rainfall data to calculate watering percentage. If you selected a different weather algorithm (such as ‘Auto Rain Delay’) then the result will be different.

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OpenSprinkler Forums OpenSprinkler Unified Firmware Water Level Log question.