#include "thermistor.hpp"

#include <math.h>

double Thermistor::getResistance(double adcSample)
{
	return SERIES_RESISTOR * adcSample / (1023 - adcSample);
}

double Thermistor::getTemperature(double resistance)
{
	double steinhart = resistance / THERMISTOR_NOMINAL;
	steinhart = log(steinhart);
	steinhart /= BETA_COEFFICIENT;
	steinhart += 1.0 / (NOMINAL_TEMPERATURE + 273.15);
	steinhart = 1.0 / steinhart;
	steinhart -= 273.15;
	return steinhart;
}