#define BLYNK_TEMPLATE_ID "TMPLi42639x9"
#define BLYNK_DEVICE_NAME "percobaan1"
#define BLYNK_AUTH_TOKEN "89xk7UKQWaDVRY1AH8UhlJ0WjLbwGycy"
#define TINGGI_LAYAR 64 // Tinggi layar OLED yang digunakan
#define LEBAR_LAYAR 128 // Lebar layar OLED yang digunakan
#define pinRelay 4


#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "DHTesp.h"
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

const float GAMMA = 0.7;
const float RL10 = 50;
int pirState = LOW; 
int inputPin = 14;   
#define TRIG_PIN 13 // ESP32 pin GIOP23 connected to Ultrasonic Sensor's TRIG pin
#define ECHO_PIN 12 // ESP32 pin GIOP22 connected to Ultrasonic Sensor's ECHO pin


Adafruit_SSD1306 oled(LEBAR_LAYAR, TINGGI_LAYAR, &Wire, -1);

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


const int DHT_PIN = 15;
DHTesp dhtSensor;
BlynkTimer timer;
String lum,lem,su;
float duration_us, distance_cm;
int val = 0;   

void setup() {
  Serial.begin(115200);
  pinMode(5, OUTPUT);
  pinMode(inputPin, INPUT); 
  pinMode(2, OUTPUT);
  pinMode(pinRelay, OUTPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  Blynk.begin(auth, ssid, pass);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("failed to start SSD1306 OLED"));
    while (1);
  }
  oled.clearDisplay(); 
  oled.setTextSize(1);         // Atur ukuran text
  oled.setTextColor(WHITE);    // Atur warna text
  oled.setCursor(20, 20);       // Atur posisi text pada display
  oled.println("SELAMAT DATANG"); // Text yang dicetak
  delay(2000);
  oled.display(); 
  oled.clearDisplay();// menampilkan display OLED
}

void loop() {
  oled.clearDisplay(); 
  digitalWrite(5,LOW);
  oled.setTextSize(1);
  oled.setTextColor(WHITE); 
  oled.setCursor(0,0);
  oled.print("Monitoring Sawah");      //Tampilan pada layar LCD
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  // measure duration of pulse from ECHO pin
  duration_us = pulseIn(ECHO_PIN, HIGH);
  // calculate the distance
  distance_cm = 0.017 * duration_us;
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  Blynk.virtualWrite(V0, data.temperature); 
  Blynk.virtualWrite(V2, "0"); 
  Blynk.virtualWrite(V4, "0"); 
  Blynk.virtualWrite(V1, data.humidity);//mengirimkan data ke Virtual pin di Blynk Cloud
  lem="Kelembaban: "+String(data.humidity, 1)+ "%";
  oled.setCursor(0,20);
  oled.print(lem);      //Tampilan pada layar LCD
  su="Suhu      : "+String(data.temperature, 2) + "°C";
  oled.setCursor(0,30);
  oled.print(su);      //Tampilan pada layar LCD
  oled.display();
  oled.clearDisplay(); 
  val = digitalRead(inputPin);  
  if (val == HIGH) {            
    digitalWrite(2, HIGH);
    digitalWrite(5,HIGH);
    Blynk.virtualWrite(V4, "1"); 
    if (pirState == LOW) {
      Serial.println("Terdeteksi Pencuri!");
      oled.clearDisplay(); 
      oled.setTextSize(1);         // Atur ukuran text
      oled.setTextColor(WHITE);    // Atur warna text
      oled.setCursor(20, 20);       // Atur posisi text pada display
      oled.println("Terdeteksi Pencuri"); // Text yang dicetak
      pirState = HIGH;
    }
  } 
  if (val == LOW) {            
    digitalWrite(2, LOW);  
    if (pirState == HIGH) {
      pirState = LOW;
    }
  }
  if(data.humidity<50)
  {
    digitalWrite(pinRelay, HIGH);
  }
  if(data.humidity>=50)
  {
    digitalWrite(pinRelay, LOW);
  }
  if(distance_cm<50)
  {
    Blynk.virtualWrite(V2, "1"); 
    oled.clearDisplay(); 
    oled.setTextSize(1);         // Atur ukuran text
    oled.setTextColor(WHITE);    // Atur warna text
    oled.setCursor(20, 20);       // Atur posisi text pada display
    oled.println("Terdeteksi HAMA"); // Text yang dicetak
    delay(2000);
    oled.display(); 
    Serial.println("Terdeteksi HAMA!");
    digitalWrite(5,HIGH);
  }
  delay(100);
 }