unsigned int last10[600]; //sensor info every second for 10 min
float avgData[144]; //average of each 10 min interval
int tenIndex = 0;
int fullIndex = 0;

unsigned int minimum = 99999999999; //Needs to be a very large number so that the minimum can update to something lower.
unsigned int maximum = 0; //Same thing for maximum as minimum but the other way. 
unsigned long rollingSum = 0; //Temperature will never go below 0 F
float rollingAverage;
  
unsigned long myTime = 0;
int endSeconds = 87000; //this is 24 hours in seconds + 10 minutes because it was not counting the last 10 minutes when it was set to 86400

int analogPin = 35;
float val = 0;
float Resistance = 0.0;
float steinhart = 0.0;

#define SERIESRESISTOR 10000
#define NOMINAL_RESISTANCE 10000
#define NOMINAL_TEMPERATURE 25
#define BCOEFFICIENT 4300

float avgdata()
{
   int sum = 0;
   for(int i = 0; i < 600; i++)
   {
      sum += last10[i];
   }
   return ((float)sum)/600.0;
}

float TempToF(float volt) //This function turns the analog voltage that we are given from the thermistor into temperature in Kelvin, then Celsius, then Fahrenheit and returns this value.
{
    Resistance = (4095 / volt) - 1;
    Resistance = SERIESRESISTOR * Resistance;

    steinhart = Resistance / NOMINAL_RESISTANCE;
    steinhart = log(steinhart);
    steinhart /= BCOEFFICIENT;
    steinhart += 1.0 / (NOMINAL_TEMPERATURE + 273.15);
    steinhart = 1.0 / steinhart;
    steinhart -= 273.15;
    steinhart = steinhart *(9.0/5.0) + 32.0;
    return steinhart;
}

void printData() //This is what allows us to see all of the required data for the project.
{
  Serial.println("10 min intervals, sensor data"); //Titles
  for (int i = 0; i < fullIndex; i++)
  {
    Serial.print((i+1)*10);
    Serial.print(" mins, ");
    Serial.println(TempToF(avgData[i]));
  }
  Serial.print("Average so far: ");
  Serial.println(TempToF(rollingAverage));
  Serial.print("Minimum so far: ");
  Serial.println(TempToF((float)minimum));
  Serial.print("Maximum so far: ");
  Serial.println(TempToF((float)maximum));
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
}

void loop() {
  // put your main code here, to run repeatedly:

  char serinput;
  if(myTime < endSeconds || fullIndex >=144) //This makes it so that if the the time hits endSeconds or fullIndex >=144, then the serial moniter will stop adding values to the output. 
  {
    myTime = (millis()-12)/1000; //The time started at 12 milliseconds, so I subtracted by 12, then converted the milliseconds into seconds. 
    val = analogRead(analogPin);

    Serial.print("Temperature ");
    Serial.print(TempToF(val));
    Serial.println(" F");
    
    Serial.print("Time passed (seconds): "); //Prints the time that has passed since starting in seconds
    Serial.println(myTime);
    if (tenIndex < 600) //This makes it so that anything less than the minimum would become the new minimum and anything greater than the maximum would become the new maximum. 
    {
      last10[tenIndex] = val;
      if (last10[tenIndex] < minimum)
        minimum = last10[tenIndex];
      if (last10[tenIndex] > maximum)
        maximum = last10[tenIndex];

        rollingSum += last10[tenIndex];
        rollingAverage = (float)rollingSum / (float)(600*fullIndex + tenIndex);

        tenIndex++;
    }
    else 
    {
      tenIndex = 0;
      avgData[fullIndex] = avgdata();
      fullIndex++;
    }
  }
  
  if (Serial.available()) //prints the data when any character is input
  {
    serinput = Serial.read();
    if ((char)serinput >= 32 && (char) serinput <= 126) 
    {
      printData();
    }
  }
  
  delay(1000); //Delays the whole program by 1 second everytime it runs so that we only get the temperature every second. 
}