nissan20det:
Okay so when I copied the code over and changed the resistor value to 10000.
The code shows a thermistor value of 32kohm@25C and a fixed resistor of 32kohm.
And external Aref in setup(), which is unusual for a ratiometric sensor.
Fixed resistor value should be about the same as the thermistor at or near the temp of interrest,
for max resolution at working temp.
Why did you set Aref to external?
Leo..