#define BLYNK_TEMPLATE_ID "TMPL6grC-sFOo"
#define BLYNK_TEMPLATE_NAME "Rain"
#define BLYNK_AUTH_TOKEN "eG3HfWcFj2RbyCQtpZncV4fSRQ_QW0Hs"

#include <WiFi.h>
#include <BlynkSimpleEsp32.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Wire.h>
#include "DHT.h"
#include <NewPing.h>

// WiFi credentials
char ssid[] = "KP2";       
char pass[] = "123456789";   

#define ledldr 26
#define ledsuhu 27
#define buzzer 14
#define DHTPIN 2
#define DHTTYPE DHT22
#define LDR_PIN 19

#define TRIG_PIN 5
#define ECHO_PIN 18
#define jarak_max 200
NewPing jarak(TRIG_PIN, ECHO_PIN, jarak_max);
DHT suhu(DHTPIN, DHTTYPE);

int inputPin = 4;               
int pirState = LOW;             
int val = 0;    

#define OLED_ADDR   0x3C 
#define OLED_SDA    21    
#define OLED_SCL    22   

#define Width_l 128
#define Height_l 64
#define Reset 4
Adafruit_SSD1306 layar(Width_l, Height_l, &Wire, OLED_ADDR);

void readSuhu() {
  float temp = suhu.readTemperature();
  float kbb = suhu.readHumidity();
  layar.setTextSize(0.2);
  layar.setCursor(0, 0);
  if (temp >= 30) {
    digitalWrite(ledsuhu, HIGH);
    layar.print("Temp: ");
    layar.print(temp);
    layar.print(" C");
  } else {
    digitalWrite(ledsuhu, LOW);
    layar.print("SuhuNormal");
  }
  // Kirim data ke Blynk
  Blynk.virtualWrite(V1, temp); 
  Blynk.virtualWrite(V2, kbb);  
}

void readLDR() {
  layar.setTextSize(0.2);
  layar.setCursor(1, 25);
  layar.print("Ruangan: ");
  int ldrStatus = digitalRead(LDR_PIN);
  if (ldrStatus == HIGH) {
    digitalWrite(ledldr, HIGH);
    layar.print("Malam");
    Blynk.virtualWrite(V3, "Malam"); 
  } else {
    digitalWrite(ledldr, LOW);
    layar.print("Siang");
    Blynk.virtualWrite(V3, "Siang");
  }
}

void readPIR() {
  val = digitalRead(inputPin);  
  layar.setTextSize(0.2);
  layar.setCursor(1, 40);
  layar.print("Kondisi: ");
  if (val == HIGH && pirState == LOW) {            
    layar.print("Terdeteksi");
    pirState = HIGH;
    Blynk.virtualWrite(V4, "Terdeteksi"); // Virtual Pin V4 untuk PIR
    delay(100);
  } else if (val == HIGH && pirState == HIGH) {
    layar.print("Normal");
    pirState = LOW;
    Blynk.virtualWrite(V4, "Normal");
    delay(100);
  }
}

void readDistance() {
  unsigned int jaraks = jarak.ping_cm();
  layar.setTextSize(0.2);
  layar.setCursor(1, 15);
  layar.print("Jarak: ");
  if (jaraks <= 100) {
    tone(buzzer, 1000);
    layar.print(jaraks);
    layar.print("CM, bahaya");
    Blynk.virtualWrite(V5, jaraks); // Virtual Pin V5 untuk jarak
  } else {
    layar.print("Aman");
    Blynk.virtualWrite(V5, jaraks);
  }
}

void setup() {
  Serial.begin(115200);
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass); // Hubungkan ke Blynk

  pinMode(LDR_PIN, INPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(ledldr, OUTPUT);
  pinMode(ledsuhu, OUTPUT);
  pinMode(buzzer, OUTPUT);

  suhu.begin();
  layar.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR);
  layar.clearDisplay();
  layar.setTextColor(SSD1306_WHITE);
}

void loop() {
  Blynk.run(); // Jalankan proses Blynk
  readSuhu();
  readDistance();
  readLDR();
  readPIR();
  layar.display();
  delay(10); 
  layar.clearDisplay();
}