#define TEMP_PIN PA0 // Pin to volt div
#define R1_VALUE 10000 // R=10K ohm 
#define BETA_COEFFICIENT 3950 

void setup() {
  Serial.begin(9600); // serial comm begin
}

void loop() {
  int analogValue = analogRead(TEMP_PIN); // Read analog value from thermistor
  float resistance = (R1_VALUE * (1023.0 / analogValue - 1)); // Calculate resistance of thermistor
  
  // Calculate temperature in Celsius using Beta formula
  float temperature = (1 / ((log(resistance / R1_VALUE) / BETA_COEFFICIENT) + (1 / (25 + 273.15)))) - 273.15;

  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" °C");
  
  delay(1000); // Wait be4 next reading (time = 1 sec)
}