#include <Wire.h>

// Address for LM75 Temperature Sensor
#define LM75_ADDR 0x48

// Interval between temperature readings (in milliseconds)
const unsigned long interval = 1000;  // Equal to 1 second

unsigned long previousMillis = 0;
float temperatureSum = 0.0;
float highestTemperature = -273.15;  // Absolute zero as the initial value
float lowestTemperature = 1000.0;    // high initial value
int numReadings = 0;
int numAverages = 0;
float overallAverage = 0.0;

bool printStatistics = false;

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

  // Initialize I2C communication
  Wire.begin();
}

void loop() {
  unsigned long currentMillis = millis();

  // Check if it's time to read the temperature values
  if (currentMillis - previousMillis >= interval) {
    previousMillis = currentMillis;  

    // Request temperature values from LM75
    Wire.beginTransmission(LM75_ADDR);
    Wire.write(0x00);  
    Wire.endTransmission();

    // Read temperature data
    Wire.requestFrom(LM75_ADDR, 2);  
    while (Wire.available() < 2) {
    }
    int16_t rawTemp = (Wire.read() << 8) | Wire.read();

    // Convert raw temperature data from Celsius to Fahrenheit
    float temperatureCelsius = rawTemp / 256.0;
    float temperatureFahrenheit = (temperatureCelsius * 9 / 5) + 32;

    // Calculate temperature statistics
    temperatureSum += temperatureFahrenheit;
    numReadings++;
    numAverages++;

    if (temperatureFahrenheit > highestTemperature) {
      highestTemperature = temperatureFahrenheit;
    }

    if (temperatureFahrenheit < lowestTemperature) {
      lowestTemperature = temperatureFahrenheit;
    }

    // Print temperature data
    Serial.print("Temperature: ");
    Serial.print(temperatureFahrenheit);
    Serial.println(" F");

    // Check if it's time to output the statistics
    if (currentMillis >= 10800000 && !printStatistics) {  // 3 hours (3 * 60 * 60 * 1000)
      printStatistics = true;
    }

    // Check if it's time to print the statistics
    if (printStatistics) {
      // Calculate the overall average temperature
      overallAverage = temperatureSum / numReadings;

      // Print the statistics
      Serial.println("Printing statistics:");
      Serial.print("10 Minute Average: ");
      Serial.print(overallAverage);
      Serial.println(" F");
      Serial.print("Highest Temperature: ");
      Serial.print(highestTemperature);
      Serial.println(" F");
      Serial.print("Lowest Temperature: ");
      Serial.print(lowestTemperature);
      Serial.println(" F");
      Serial.print("Overall Average: ");
      Serial.print(overallAverage);
      Serial.println(" F");
      Serial.println();

      // End the program
      while (true) {
        // Do nothing
      }
    }
  }
}