The
best way is to read the voltage with a resistor divider of
course.
Then
calculate the ADC values for each voltage
reading over your scale.
Pop
the temp and ADC readings into a curve fitting
program, and determine a 2nd degree
polynomial.
I
found that 0.1 degree C accuracy with integer math
and an
8bit ADC was quite possible.
I use
Curve Expert. Do a search.
Hello.
I'm trying to use a NTC thermistor with a 16F877
device.
It's a 10K thermistor B Constant 25/50 C(K) =
4100.
If I read resistant of the NTC, how can I calculate
temperature in Celcius degree.?
Thanks in advance.
Ercan DURAN