I have these STEINHART-HART COEFFICIENTS for a thermistor and have no idea how to use them to linearize my 10 bit result that so far I send to an LCD.

a = 0.00112485;

b = 0.000234822;

c = 0.000000085;

From AD0 I am reading 0-1023 depending on the temperature with 600 being around 25c.

I did study an example from Michael Spiceland which I have attached who uses a different thermistor but in his example he has four fields for the Thermistor Coefficents where mine just has three, I am trying to get the temp from a device who's thermistor is glued in so I cannot use another one.

Also, on the Atmega128, it has Vref. Is this for feeding an external voltage reference into the AD, If so I am wondering if more accurate/stable results from the thermistor would be possible if I used say a 2.5V precision reference instead of VCC.

Any help appreciated.