#define BLYNK_TEMPLATE_ID "TMPL6zDFi5SJb"
#define BLYNK_DEVICE_NAME "PROJEK GEDEN"
#define BLYNK_AUTH_TOKEN "zqEUKrlVUsjtMAOCaMEsq0VZf7-i2IbN"

#define BLYNK_PRINT Serial

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

#include <LiquidCrystal_I2C.h>


#define LDR_PIN 34
#define LED1 12
#define PIR_PIN 15
#define Buzzer 2


LiquidCrystal_I2C lcd(0x27, 16, 2);
// LDR Characteristics
const float gama = 0.7;
const float rl10 = 50;

char auth[] = BLYNK_AUTH_TOKEN;

char ssid[] = "Wokwi-GUEST";//nama hospot yg digunakan
char pass[] = "";//password hospot

void setup() {
  Serial.begin(115200);
  
  Blynk.begin(auth, ssid, pass);

  pinMode(LDR_PIN, INPUT);
  pinMode(PIR_PIN, INPUT);
  pinMode(LED1, OUTPUT);
  pinMode(Buzzer, OUTPUT);

  lcd.init();                      // Inisialisasi LCD
  lcd.backlight();                 // Nyalakan backlight LCD
}

void loop(){

  //LDR SENSOR
  int nilaiLDR = analogRead(LDR_PIN);
  nilaiLDR = map(nilaiLDR, 4095, 0, 1024, 0); //mengubah nilai pembacaan sensor LDR dari nilai ADC arduino menjadi nilai ADC ESP32
  float voltase = nilaiLDR / 1024.*5;
  float resistansi = 2000 * voltase / (1 - voltase / 5);
  float lux = pow(rl10 * 1e3 * pow(10, gama) / resistansi, (1 / gama));

  Blynk.virtualWrite(V0, lux);

  lcd.setCursor(1, 0);
  lcd.print("Cahaya ");
  if (lux < 300) {             // If the LDR value is lower than 200
    digitalWrite(LED1, HIGH);   // Turn buildin LED on
    lcd.print("Gelap!!");
  }
  else {
    digitalWrite(LED1, LOW);    // Turn buildin LED off
    lcd.print("Terang!!");
  }
  Serial.print("Kecerahan: ");
  Serial.println(lux);
  
  delay(1000);                 // Pause 1000ms

  //SENSOR PIR
  lcd.setCursor(0, 1);
  int pirValue = digitalRead(PIR_PIN);
  if (pirValue == HIGH) {
    Serial.println("Gerakan Terdeteksi");
    lcd.print("Gerakan Terdeteksi");
    digitalWrite(Buzzer, HIGH);
    delay(5000);
  }
  else {
    digitalWrite(Buzzer, LOW);
    Serial.println("Tak ada Gerakan!");
    lcd.print("Tak ada Gerakan!");
  }
  delay(1000);
}