#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#define DHTPIN 7
#define DHTTYPE DHT22

DHT dht (DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);
const int red=4;
const int yellow=5;
const int green=6;



void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(red,OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
  Serial.println("Sistem Monitoring Suhu");
  lcd.begin(16, 2);
  dht.begin();

}

void loop() {
  // put your main code here, to run repeatedly:
  float t = dht.readTemperature();

  

//Menampilkan di LCD
   lcd.setCursor(0, 0);
 lcd.print("Suhu: ");
 lcd.print(t);
 lcd.print(" C");
  
  
if (t>35){
  digitalWrite(red, HIGH);
 }else{
  digitalWrite (red, LOW);
 }

if (t>=30 && t <=35){
  digitalWrite(yellow, HIGH);
}else {
  digitalWrite(yellow, LOW);
}
if (t<30){
  digitalWrite(green, HIGH);
}else {
  digitalWrite(green, LOW);
}
}