RH-02 With my own driver

 
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mretallack
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Joined: 30 Mar 2006
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PostPosted: Thu Mar 30, 2006 7:59 am    Post subject: RH-02 With my own driver Reply with quote
Hello, I have written my own driver to talk to an RH-02 temperature and humidity sensor. I used the information in the rh02.pdf file, however the 16-bin reading to temperature conversion table only goes from 0 to 50oC.

http://www.picotech.com/document/pdf/rh02.pdf

Where can I get the conversion information for 0oC to -20oc and 50oC to 70oC.

Thanks in advance.
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mretallack
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Joined: 30 Mar 2006
Posts: 2

PostPosted: Mon Apr 03, 2006 10:31 am    Post subject: Thanks for the data Reply with quote
Thanks for sending me the missing data. I have converted it into an equation for easy usage. Not fully tested at this stage.....

Hopefully this will help other people if they ever need the info.

Code:


float fltCount = (GVP_FLOAT)intReading;
               
// ok, do a bit of maths
fltCount =((-66349+fltCount)/(703.3-(0.0088832*fltCount)))+(0.98373*(pow(log(fltCount), 2)));
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