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Temperature differences : calibrating senors in Domoticz ?

Posted: Tuesday 19 January 2016 14:43
by flotheouf
Hello,

I have bought both Lacrosse and Oregon scientific temperature & humidity sensors, and my sensors are catched by a rfxtrx433e connected to a RPI with Domoticz on it.

I find discrepancies of ~0.4°C between some of the sensors ; is there a way to correct the values in Domoticz , like adding an offset for a given temperature sensor ?
If I go to "Edit" on my sensor, I can only change the name...



Thank you very much for your help

Flotheouf

Re: Temperature differences : calibrating senors in Domoticz

Posted: Tuesday 19 January 2016 17:44
by StanHD
Do you not have this for "Edit":-?

Image

Re: Temperature differences : calibrating senors in Domoticz

Posted: Wednesday 20 January 2016 9:29
by bbqkees
0.4 is well below their expected accuracy, even original calibrated DS18B20 sensors have an accuracy of only 0,5 degrees.

Re: Temperature differences : calibrating senors in Domoticz

Posted: Wednesday 20 January 2016 17:11
by flotheouf
Hello,

Ok my mistake, I was looking for this option in the "devices" tab...

You mean that the Oregon's sensors are based on DS18B20 ?

I just want to try to homogenize all my devices before using them

Thanks,

Florent

Re: Temperature differences : calibrating senors in Domoticz

Posted: Thursday 21 January 2016 9:44
by bbqkees
No they are not based on those sensors but to give an idea of the accuracy of a good sensor.

You can add an adjustment value but this is just a fixed offset, it cannot improve the accuracy of the sensors.