double output_voltage, thermistor_resistance, therm_res_ln, temperature;

  int thermistor_adc_val;

  thermistor_adc_val = ADC_NTC.get();

  output_voltage = ( (thermistor_adc_val * 5.0) / 1023.0 );

  thermistor_resistance = ( ( 5 * ( 10.0 / output_voltage ) ) - 10 ); /* Resistance in kilo ohms */

  thermistor_resistance = thermistor_resistance * 1000 ; /* Resistance in ohms   */

  therm_res_ln = log(thermistor_resistance);

  /*  Steinhart-Hart Thermistor Equation: */

  /*  Temperature in Kelvin = 1 / (A + B[ln(R)] + C[ln(R)]^3)   */

  /*  where A = 0.001129148, B = 0.000234125 and C = 8.76741*10^-8  */

  temperature = ( 1 / ( 0.001129148 + ( 0.000234125 * therm_res_ln ) + ( 0.0000000876741 * therm_res_ln * therm_res_ln * therm_res_ln ) ) ); /* Temperature in Kelvin */

  temperature = temperature - 273.15; /* Temperature in degree Celsius */

  temperatura = temperature;