const int analogPin = 33;
const float nominalTemperature = 25.0;
const float bCoefficient = 3950;
const float nominalResistance = 10000.0;
const float seriesResistor = 10000.0;
const float vref = 3.3;
const int adcMaxValue = 4095;

void setup() {
  Serial.begin(115200);
}

void loop() {
  int analogValue = analogRead(analogPin);
  float voltage = analogValue * (vref / adcMaxValue);
  float thermistorResistance = (seriesResistor * (vref / voltage)) - seriesResistor;
  
  float steinhart;
  steinhart = thermistorResistance / nominalResistance;
  steinhart = log(steinhart);
  steinhart /= bCoefficient;
  steinhart += 1.0 / (nominalTemperature + 273.15);
  steinhart = 1.0 / steinhart;
  steinhart -= 273.15;

  Serial.print("Temperature: ");
  Serial.println(steinhart);
  Serial.println(" -C");

  delay(1000);
}