#define BLYNK_TEMPLATE_ID "TMPL6-llikyfw"
#define BLYNK_TEMPLATE_NAME "Soil Moisture Sensor"
#define BLYNK_AUTH_TOKEN "L6OrmJorRsB5PjT49Ek3uy4wS2RqPaTM"

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

// Mendefinisikan pin
const int sensorPin = A0;
const int relayPin = 17;
const int ledPin = 2; // Opsional

// Batas kelembaban tanah (nilai potensiometer)
const int threshold = 2000;

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = ""; //password hotspot yang digunakan

void setup() {
  // Memulai Serial Monitor
  Serial.begin(115200);
  
  // Mengatur pin sebagai output
  pinMode(relayPin, OUTPUT);
  pinMode(ledPin, OUTPUT); // Opsional
  
  // Menghubungkan ke WiFi
  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("WiFi connected");
  
  // Menghubungkan ke Blynk
  Blynk.begin(auth, ssid, pass);
}

void loop() {
  // Menjalankan fungsi Blynk
  Blynk.run();
  
  // Membaca nilai potensiometer
  int sensorValue = analogRead(sensorPin);
  Serial.print("Soil Moisture Value: ");
  Serial.println(sensorValue);
  
  // Mengirim nilai sensor kelembaban tanah ke Blynk
  Blynk.virtualWrite(V0, sensorValue);
  
  // Mengontrol pompa air berdasarkan nilai potensiometer
  if (sensorValue < threshold) {
    digitalWrite(relayPin, LOW); // Mengaktifkan pompa
    digitalWrite(ledPin, HIGH);  // Menyalakan LED (opsional)
    Blynk.virtualWrite(V1, 1);   // Mengirimkan status aktif ke Blynk
  } else {
    digitalWrite(relayPin, HIGH); // Mematikan pompa
    digitalWrite(ledPin, LOW);    // Mematikan LED (opsional)
    Blynk.virtualWrite(V1, 0);    // Mengirimkan status mati ke Blynk
  }
  
  delay(1000); // Penundaan 1 detik
}