#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);  

const int tempPin1 = 12;  
const int tempPin2 = 12; 
const int tempPin3 = 12;  

const int ledPin = 10;    

void setup() {
  lcd.begin(16, 2);       
  lcd.backlight();        
  pinMode(ledPin, OUTPUT);  
}

void loop() {
  float temp1 = readTemperature(tempPin1);  
  float temp2 = readTemperature(tempPin2);  
  float temp3 = readTemperature(tempPin3);  

  lcd.clear();  
  lcd.setCursor(0, 0);
  lcd.print("Temp 1: ");
  lcd.print(temp1);
  lcd.print(" C");

  lcd.setCursor(0, 1);
  lcd.print("Temp 2: ");
  lcd.print(temp2);
  lcd.print(" C");

  lcd.setCursor(0, 2);
  lcd.print("Temp 3: ");
  lcd.print(temp3);
  lcd.print(" C");

  if (temp1 > 30 || temp2 > 30 || temp3 > 30) {
    digitalWrite(ledPin, HIGH);  
    lcd.setCursor(0, 1);
    lcd.print("ALERT: Overheating!");
  } else {
    digitalWrite(ledPin, LOW);   
  }

  delay(1000);  
}

float readTemperature(int pin) {
  return 25.0;  
}