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;