// Ohm Thakor ENGR 103 Temperature Sensor 24 Hours Spring 2023

#include <LM75A.h>

short ten_minute = 0, value, i = 0, c = 0, high = -300, low = 300; // ten_minute keeps sum of temps over 10 min, value stores the current temp, 
short ten_average[144]; // it is 144 because there are 6 10 minute increments per hour and 144 increments in 24 hours
int total = 0, count = 0; //measures sum of all temps measured from time program starts

LM75A lm75a_sensor(false,false,false);

int ten (int i, short ten_minute, short ten_average[], int count)
  {
    if(count%600 == 0) //the number of values measured in 10 minutes
    {
    ten_average[i] = ten_minute/600;
    i++;
    ten_minute = 0; //ten_minute is reset back to 0.
    }
  return i;
  }

void overall (int count, short ten_average[], int total, short high, short low)
  {
    Serial.println("Average Every 10 minutes in Celsius: ");
    for(i = 0; i < count/600; i++)
      {
      Serial.println(ten_average[i]);
      }
    Serial.println();

    Serial.print("High: ");
    Serial.print(high);
    Serial.println(" °C");

    Serial.print("Low: ");
    Serial.print(low);
    Serial.println(" °C");

    Serial.println();
    Serial.print("Overall Average: "); //running average
    Serial.print(total/count);
    Serial.println(" °C");
  }

void setup() {
  Serial.begin(115200);
  delay(500);
  Serial.println("Starting Program (Press r to generate a report):");
}

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

  value = lm75a_sensor.getTemperatureInDegrees(); //this is how temperature data is received from sensor

  if(value > high)
    {
    high = value; // this will set any new value to the highest value if it is greater than the previous highest value
    }
  if(value < low)
    {
    low = value; // this will set any new value to the lowest value if it is less than the current lowest value
    }

  Serial.print("Temperature: ");
  Serial.print(value); // current temperature
  Serial.println(" °C");

  ten_minute += value;
  total += value;

  count++;  // this measues the number of total measurements

  i = ten(i, ten_minute, ten_average, count); // will occur every ten minutes
  if(count%600 == 0) 
    {
    ten_minute = 0; //ten_minute is reset back to 0.
    }

  if(Serial.available() > 0)
    {
    if(Serial.read() == 'r');
    overall(count, ten_average, total, high, low); // these are the values shown at the end of program
    }

  delay(1); // this ensures that at least one millisecond has passed
  while(millis()%1000 != 0); // stops the code so there is a measurement every second. This accounts for lost time it takes to print previous value.

  while(count == 86400) //holds the code for exactly 24 hours (86400 seconds)
    {
    if(c == 0)
      {
      Serial.println();
      Serial.println("24 hours have passed, no more temperatures will be measured and tracked");
      Serial.println("Press r to print report");
      c++;
      }
    if (Serial.available() > 0)
      {
      if(Serial.read() == 'r');
      overall(count, ten_average, total, high, low); // these are the values shown once 'r' is entered
      }
   }
}