#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <OneWire.h>
#include <DallasTemperature.h>
//tes
LiquidCrystal_I2C lcd(0x27, 20, 4);


OneWire oneWire1(10); 
OneWire oneWire2(9);  
OneWire oneWire3(8);  
DallasTemperature sensors1(&oneWire1);
DallasTemperature sensors2(&oneWire2);
DallasTemperature sensors3(&oneWire3);

const int ledPin1 = 0;
const int ledPin2 = 1;
const int ledPin3 = 2;

void setup() {
  lcd.begin(20, 4);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Suhu 1:");
  lcd.setCursor(0, 1);
  lcd.print("Suhu 2:");
  lcd.setCursor(0, 2);
  lcd.print("Suhu 3:");

  sensors1.begin();
  sensors2.begin();
  sensors3.begin();
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(ledPin3, OUTPUT);
  
}

void loop() {
  
  sensors1.requestTemperatures();
  float temp1 = sensors1.getTempCByIndex(0);

  sensors2.requestTemperatures();
  float temp2 = sensors2.getTempCByIndex(0);

  sensors3.requestTemperatures();
  float temp3 = sensors3.getTempCByIndex(0);

  
  lcd.setCursor(8, 0);
  lcd.print(temp1);
  lcd.print(" C");

  lcd.setCursor(8, 1);
  lcd.print(temp2);
  lcd.print(" C");

  lcd.setCursor(8, 2);
  lcd.print(temp3);
  lcd.print(" C");

  if (temp1 > 20) {
    digitalWrite(ledPin1, HIGH);
     lcd.setCursor(16,0);
    lcd.print("Hot");
  } else {
   
    digitalWrite(ledPin1, LOW);
  }

  if (temp2 > 20) {
    digitalWrite(ledPin2, HIGH);
      lcd.setCursor(16,1);
    lcd.print("Hot");
  } else {
    digitalWrite(ledPin2, LOW);
  }

  if (temp3 > 20) {
    digitalWrite(ledPin3, HIGH);
      lcd.setCursor(16,2);
    lcd.print("Hot");
  } else {
    digitalWrite(ledPin3, LOW);
  }


  delay(100); 
}