int ThermistorPin = 35;
int Vo;
float R1 = 10000;
float logR2, R2, T, Tc, Tf;
float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;
float avg = 0.0;
float average = 0.0;
float temp_array[145];
int interval = 0;
unsigned long start_time = 0;

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


void loop() {

  // 24 Hour Loop
  for (int i = 1; i <= 86400; ++i) {

    // Convert to Fahrenheit
    Vo = analogRead(ThermistorPin);
    Serial.print ("  Vo =");
    Serial.print(Vo);
    R2 = R1 * (4096.0 / (float)Vo - 1.0);
    Serial.print("\t R2 =");
    Serial.print(R2);
    logR2 = log(R2);
    Serial.print("\t  logR2 =");
    Serial.print(logR2);
    T = (1.0 / (c1 + c2 * logR2 + c3 * logR2 * logR2 * logR2));
    Serial.print("\t  T =");
    Serial.print(T);
    Tc = T - 273.15;
    Tf = (Tc * 9.0)/ 5.0 + 32.0;

    Serial.print("\t  Temperature(F): ");
    Serial.print(Tf);
    Serial.println(" F");

    // Interval Addition
    avg += Tf;

    // Average Calculation
    if (i % 600 == 0) {
      average = avg / 600;
      avg = 0.0;

      temp_array[interval] = average;
      ++interval;
    }

    // Reading
    if (Serial.available() > 0){
      char message = Serial.read();
      // Average output
      if (message == '1'){
        for (int j = 0; j < 145; ++j){
          Serial.print("Average of interval ");
          Serial.print(j);
          Serial.print(": ");
          Serial.print(temp_array[j]);
          Serial.println(" F");
        }
      }
      // Runtime output
      else if (message == '2'){
        unsigned long runtime = millis() - start_time;
        Serial.print("Total runtime: ");
        Serial.print(runtime);
        Serial.println(" ms");
      }
    }
    
    delay(1000);
  }

  // Record start time after initial delay
  if (start_time == 0) {
    start_time = millis();
  }
}