#include "DHT.h" 
#define DHTPIN 2
#define DHTTYPE DHT22
#define buzzer 7
#define BUTTON_PIN 4

DHT dht (DHTPIN, DHTTYPE);

int tempMode = 0;
int t;
int buttonState;
const int threshold =23;
void setup() {
  
  Serial.begin(9600);
  pinMode(buzzer, OUTPUT);
  pinMode(BUTTON_PIN, INPUT);
  dht.begin();

}
void loop() {
  
  t = dht.readTemperature(tempMode);
  buttonState = digitalRead(BUTTON_PIN);
  Serial.print("buttonState : ");
  Serial.print(buttonState);
  Serial.print(" Temp Value : ");
  Serial.print( t);
  Serial.println("");
  if (buttonState == 0) { //button off
     if(t>threshold){
     tone(buzzer, 4000);
     delay(1000);
    }else{
      noTone(buzzer);
      delay(2000);
    }
    
  }else{ //button click
     if(t<threshold){
      noTone(buzzer);
      delay(2000);
  
    }else{
      tone(buzzer, 4000);
      delay(1000);
    }
  
  } 
}