#include <math.h>

const int B = 4275;               // B value of the thermistor
const int R0 = 10000;            // R0 = 100k
const int pinTempSensor = A0;     // Grove - Temperature Sensor connect to A5
const int mic = A3;
const int buzzer= A2;
bool check = false;

void setup() {
    Serial.begin(9600);
    pinMode(buzzer, OUTPUT);

}

void loop() {
    while (!check) {
    //Get the current temperature
    float totalTemp = 0;
    int totalSound = 0;
    for (int i = 0; i < 10; i++) {
      //Get the value of the temperature
      float temp1 = getTemp();
      totalTemp += temp1;

      //Get the value from the audio signal
      int num1 = getSound();
      totalSound += num1;

      delay(500);
      }
    float avgTemp = totalTemp/10;
    int avgSound = totalSound/10;
    Serial.print("The temperature is: ");
    Serial.println(avgTemp);
    Serial.print("The sounds level is: ");
    Serial.println(avgSound);

    //If the temperatue and sound is above a threshold, activate the buzzer
    if(avgSound > 15000 && avgTemp > 90)
    {
      check = true;
    }
    delay(1000);
  }

  if (check) {
    Serial.println("good");
    while (true)
    {
      tone(buzzer, 150, 500);
      noTone(buzzer);
      tone(buzzer, 150, 250);
      delay(500);
    }
  }

}

//helper functions

float getTemp()
{
  int a = analogRead(pinTempSensor);
  float R = (float)1023.0/a-1.0;
  R = R0*R;
  float temp = 1.0/(log(R/R0)/B+1/298.15)-273.15; // convert to temperature via datasheet
  float temp1 = temp*1.8 +32;
  return temp1;
}

int getSound()
{
  int soundVal1 = analogRead(mic);
  int val = soundVal1;
  float num =(float)val/1023;
  float num1= num/0.00002;
  return num1;
}