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Posted (edited)

Hallo!

My Name is Michael and i am new in this Forum

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My English is not so good but I hope some can help my with my Fibaro RGBW Modules and this Pressure Sensor:

 

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The Voltage for the Fibaro RGBW Modules is 24 V

This Pressure Sensor give a Signal from 0 - 10 V

The Parameter 14 I have Setting with 34952 as all IN

 

Ok, but on the In 1-4 it is a voltage from 10 V?????

 

I dont have the Homecenter!

 

Thanks for Infos!!!!!

Edited by Michael80
Posted

RGBW supports passive (analog) sensors, if nothing is connected to input there is 10V on the connector.
This kind of sensors uses RGBW Input as power source. This kind of sensors uses their resistance to drop voltage on input. 

Your pressure sensor is active, it uses its own power source - it can't drop voltage on RGBW Input. 

As far as I know it won't work, maybe there is a way to workaround this... 

Maybe you could just replace this sensor for analog one?

  • Topic Author
  • Posted

    Thanks allot.

    Witch passiv pressure Sensor I can use with the fibaro Rgbw?

    Do you habe a Link for me?

    Posted

    we did used (for active lux sensors) 10k pulldown resistors, not the best solution but it works

  • Topic Author
  • Posted

    Where you have Install the 10 K Pulldown Resistors?

    Between GND and Sensor IN1 on the Fibaro Controler ( see Picture )

     

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  • Topic Author
  • Posted (edited)

    Where I must the 10K pulldown resistors Install? So on the pic?

    Edited by Michael80
    • 1 month later...
  • Topic Author
  • Posted

    Hello again,

     

    where I must Install the 10K pulldown resistors? So how on the pic?

    Posted

    Hi! Your sensor may have the same issue as the "Loxone" light sensor. I made a little buffer for it, the schematics + some background can be found here:

     

     

    The pulldown resistor will probably give you some measurement range, but not as much as a real buffer.

    The resistor connects from IN to GND.

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