#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4);

#include "DHT.h"
#define DHTPIN 2     
#define DHTTYPE DHT22 
DHT dht(DHTPIN, DHTTYPE);


void setup(){
Serial.begin(9600);
dht.begin();

lcd.init();
lcd.backlight();

digitalWrite(7, HIGH);
digitalWrite(12, HIGH);
digitalWrite(5, HIGH);
pinMode(6, OUTPUT);
pinMode(13, OUTPUT);
pinMode(4, OUTPUT);
}

void loop() {

  int Input =analogRead(A0);
  double voltage = Input* (5.0 /1024.0) *10;
  double L_Current = voltage/7;

  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  
  // Check if any reads failed and exit early (to try again).
  if (isnan(temperature) || isnan(humidity)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }

  lcd.setCursor(2,2);
  lcd.print(F("Humidity: "));
  lcd.print(humidity);


  lcd.setCursor(3,1);
  lcd.print(F("Temprature:"));
  lcd.print(temperature);
  lcd.println(F("C"));

  lcd.setCursor(1,0);
  lcd.print("L_Current:");
  lcd.print(L_Current);
  lcd.print("mA");



  if(L_Current>=6.00){
    digitalWrite(6, LOW);
    tone(13,10,10002220);
    lcd.setCursor(4,3);
    lcd.print("LINE FAULT!");

  }
  else{
   digitalWrite(6, HIGH);
    tone(13, stdout);
     lcd.setCursor(4,3);
     lcd.print("SAFE MODE!");
  }
if(temperature>=25){
   tone(4,putc);
   lcd.setCursor(4,3);
   lcd.print("FIRE ALERT!");
}
else{
  if(temperature<24){
  tone(4, stdout);
  }
}
}