Converting values of analog inputs to voltage

PEPITO82
Posts: 5
Joined: Fri Jul 31, 2015 8:03 am

Converting values of analog inputs to voltage

Postby PEPITO82 » Thu Dec 17, 2015 9:00 pm

Hi all,

a few days ago I connected an airquality sensor with 0-10V output to the analog input of the Unipi board (V1.1).
In FHEM I'm getting values like "408421.875".

I have no idea how to convert these values to a standard voltage value like 4,5 V.
Can anybody help me?

Regards,

Peter

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