#include <DHT.h>
#include<LiquidCrystal.h>
int rs=13,en=12,d4=11,d5=10,d6=9,d7=8;
LiquidCrystal lcd(rs,en,d4,d5,d6,d7);
#define DHTPIN 7    
#define DHTTYPE DHT22   
DHT dht(DHTPIN, DHTTYPE);
int LEDR=A0;
int LEDG=A1;
int PTEMP=A2;
int Buzz=A3;

void setup() {
 
  lcd.begin(16,2);
  Serial.begin(9600);
  pinMode(7,OUTPUT);
  pinMode(A0,OUTPUT);
  pinMode(A1, OUTPUT);
  pinMode(A2,INPUT);
  pinMode(A3,OUTPUT);
  dht.begin();
}

void loop() {

  delay(1000);
  
  float t = dht.readTemperature();

  
 

  
  int pot=analogRead(PTEMP);
  lcd.print(pot);
  int mapped_value=map(pot,0,1024,30,80);


  if(mapped_value<=41 )
  {
    lcd.clear();
    digitalWrite(A1,1);
    analogWrite(A2,mapped_value);
    lcd.setCursor(1,0);
    lcd.print("S_temp:");
    lcd.print(mapped_value);
    lcd.setCursor(0,1);
    lcd.print(F("R_Temp: "));
    lcd.print(t);
    delay(1000);

  }
  if(mapped_value>=41)
  { 
    lcd.clear();
    digitalWrite(A0,1);
    digitalWrite(A3,1);
    tone(A3,1000,1000);
    analogWrite(A2,mapped_value);
    lcd.setCursor(1,0);
    lcd.print("S_temp:");
    lcd.print(mapped_value);
    lcd.setCursor(0,1);
    lcd.print("red alert!!");
    delay(1000);
    

  }
 

}