Node battery voltage in openHAB iOS



  • Hi all
    I have a question regarding this topic :
    battery powered arduino without resistors
    I have just implemented this in a motion/temp/humidity sensor
    -> Arduino Pro Mini with NRF24, DHT22 and SR501 (converted to 3.3V as per "Build" instruction)
    I inserted this bit of code into mysensor code :

    #include <Vcc.h>
    const float VccExpected   = 3.0;
    const float VccCorrection = 2.860/2.92; 
    Vcc vcc(VccCorrection);
    
    void loop()
    {
        int batteryPcnt = (int)vcc.Read_Perc(VccExpected);
       sendBatteryLevel(batteryPcnt);
    }
    

    I am pretty happy with the result, as i can now see voltage within PaperUI :)

    Now how would i get that in "things", "items" and "sitemap" ? So i can get my node battery voltage in openHAB iOS...
    Do I need to create a new child that "carries" this info?

    Thanks a lot for your help


  • Hero Member

    @ben999 : Here's an example how to integrate the battery percent value: https://github.com/tobof/openhab2-addons/wiki/Examples
    Look for bathBat01.



  • @TimO saving my evening once more !

    I got so much inspiration from that link already... and tonight's solution was there all along!!!

    It is now working fine, with icon changing according to voltage changes !!!

    Thanks a lot Tim!!


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