Appr. values from sensor temp vs. resistance graph:



tempC    R

-----------

-40,    395

-20,    425

  0,    457

 20,    490

 30,    503

 40,    520

 60,    555

 80,    585

100,    620



Values measured with dvm:



R    temp

------------

466,    icy water ~0C

493,    roomtemp ~20C

582,    ~90C

602,    almost boiling ~100C



using matfactor table filled with data 0..255, values in LCD:



LCD    temp

------------

74,    icy water ~0C

79..80,    roomtemp ~20C

89,    almost boiling ~100C



when using airXfactor_2252_256.hex, LCD shows -6..-10C at roomtemp and

airtemp rails to +30C, no matter if trying with warm (~50C) or nearly

boiling water



Pullup resistance measured 490ohm