//  Basic NTC Thermistor demo
//  Assumes a 10K@25℃ NTC thermistor connected in series with a 10K resistor.
//  Based on Copyright (C) 2021, Uri Shaked   https://wokwi.com/arduino/projects/299330254810382858

const int Temp_pin = 15;


double Thermistor(int RawADC) {
  double Temp;
 
  const float BETA = 3950; // should match the Beta Coefficient of the thermistor

  Temp = 1.0 / (log(1 / (4095.0 / RawADC - 1)) / BETA + 1.0 / 298.15) - 273.15;
   
   //Temp = (Temp * 9.0)/ 5.0 + 32.0; // Convert Celcius to Fahrenheit
   
   return Temp;
}


void setup() {
  Serial.begin(9600);
}

void loop() {
  int analogValue = analogRead(Temp_pin);
	
	
	Serial.print("analogValue: ");
  Serial.print(analogValue);


// const float BETA = 3950; // should match the Beta Coefficient of the thermistor
// float celsius = 1.0 / (log(1 / (4095. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;

  double celsius = Thermistor(analogValue);

	Serial.print("    Temperature: ");
  Serial.print(celsius);
  Serial.println(" ℃");
  delay(1000);
}