9#define BLYNK_TEMPLATE_ID "TMPL6E5lZTIFq"
#define BLYNK_TEMPLATE_NAME "Monitoring Room Data Center"
#define BLYNK_AUTH_TOKEN "3dOzV9LI4A3guPvzuml2pCkfhdC9chLH"

#include <WiFi.h>
#include<WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHTesp.h>

#include <Wire.h>
#include <LiquidCrystal_I2C.h>  
LiquidCrystal_I2C lcd(0x27, 16,2);

char auth[]=BLYNK_AUTH_TOKEN;
char ssid[]="Wokwi-GUEST";  
char pass[]="";  

BlynkTimer timer;
int Relay = 2;
int PIR =12;
int Relay2= 14;
int DHT =15;

int LedHijau =17;
int LedMerah =18;
int Buzzer =19;

//int SW_relay=0;
int value0;
DHTesp dht;
int nilai_digital;

BLYNK_WRITE(V0)
{
  value0=param.asInt();
  if(value0==1)
  {
    digitalWrite(Relay, HIGH);
    Serial.println("KIPAS NYALA");
    Blynk.virtualWrite(V0, value0);
  }
  else
  {
    digitalWrite(Relay, LOW);
    Serial.println("KIPAS MATI");
    Blynk.virtualWrite(V0, value0);
  }
}


void setup() 
{
 //dht.begin();
  dht.setup(DHT,DHTesp::DHT22);
  Serial.begin(115200);

  lcd.init();
  lcd.setBacklight(255); 
  lcd.clear();
  lcd.setCursor (0,0);
  lcd.print("***MONITORING***");
  lcd.setCursor(0,1);
  lcd.print("***RUANG SERVER***");
  delay(1000);
  lcd.clear();

  pinMode(Relay, OUTPUT);
  pinMode(Relay2, OUTPUT);
  pinMode(PIR, INPUT);
  pinMode(LedMerah, OUTPUT);
  pinMode(LedHijau, OUTPUT);
  pinMode(Buzzer, OUTPUT);

  Blynk.begin(auth,ssid,pass);

  WiFi.disconnect();
  WiFi.begin(ssid, pass);
  while ((!(WiFi.status() == WL_CONNECTED))) 
  {
    delay(500);
    Serial.print(".");
  }
}

void loop() 
{
  Blynk.run();
  timer.run();
  
  TempAndHumidity data=dht.getTempAndHumidity();    
  Serial.print("Humidity: ");
  Serial.print (data.humidity);
  Serial.print("%  Temperatur: ");
  Serial.print(data.temperature);
  Serial.println(" C");

if (data.temperature > 25 || data.temperature < 20)
    {
        lcd.setCursor (0,0);          
        lcd.print("  SUHU RUANGAN  ");
        lcd.setCursor (0,1);
        lcd.print("    BERBAHAYA   "); 
        //tone(Buzzer, 50);
        digitalWrite(Buzzer, HIGH);
        digitalWrite(LedMerah, HIGH);
        digitalWrite(LedHijau, LOW);
        Serial.println("SUHU RUANGAN BERBAHAYA");  

        Blynk.virtualWrite(V1,data.humidity);
        Blynk.virtualWrite(V2, data.temperature);   
        delay(2000);
        
        lcd.clear();
  }
  else
  {
        lcd.setCursor (0,0);          
        lcd.print("  SUHU RUANGAN  ");
        lcd.setCursor (0,1);
        lcd.print("      AMAN      "); 
    
        digitalWrite(Buzzer, LOW);
         digitalWrite(LedMerah, LOW);
         digitalWrite(LedHijau, HIGH);
        //noTone(Buzzer);
        Serial.println("SUHU RUANGAN AMAN");
        delay(2000);
        Blynk.virtualWrite(V1,data.humidity);
        Blynk.virtualWrite(V2, data.temperature);   
        lcd.clear();
  }

  // Blynk.virtualWrite(V1,data.humidity);
  // Blynk.virtualWrite(V2, data.temperature);
  // Blynk.virtualWrite(V4, data.temperature);
  

//pernyataan pir
  nilai_digital = digitalRead(PIR);
  if(nilai_digital == HIGH)
    {
        Serial.println(" LAMPU RUANGAN NYALA");     
        digitalWrite(Relay2,HIGH);
        Blynk.virtualWrite(V3,"LAMPU RUANGAN MENYALA");           
    }
    else
    {      
        Serial.println(" LAMPU RUANGAN MATI");        
        digitalWrite(Relay2, LOW);
        Blynk.virtualWrite(V3,"LAMPU RUANGAN MATI");       
    }  
    delay(2000);
}