#define BLYNK_TEMPLATE_ID "TMPL6sUrLhqUF"
#define BLYNK_TEMPLATE_NAME "COBA COBA"
#define BLYNK_AUTH_TOKEN "_rdGMc0WK06Eeiead7N1fiKbJQTXjiG8"

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

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

#define triggerPIN 4
#define echoPIN 0
#define LED1 14
#define LED2 12
#define LED3 13
long duration;
int distance;

unsigned long previousMillis = 0;
const unsigned long interval = 10000; 

void setup() {
  Blynk.begin(auth, ssid, pass);
  Serial.begin(9600);

  pinMode(triggerPIN, OUTPUT);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(echoPIN, INPUT);
}

void loop() {
  Blynk.run();

  digitalWrite(triggerPIN, LOW);
  delayMicroseconds(2);
  digitalWrite(triggerPIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(triggerPIN, LOW);

  duration = pulseIn(echoPIN, HIGH);
  distance = duration * 0.034 / 2;
  Blynk.virtualWrite(V3, distance);

  if (millis() - previousMillis >= interval) {
    previousMillis = millis();

    if (distance < 33) {
      Blynk.logEvent("1", "turn on irrigation!!!");
    }
    else if (distance >= 33 && distance <= 66) {
      Blynk.logEvent("2", "the water level is stable");
    }
    else if (distance >= 66 && distance <= 100) {
      Blynk.logEvent("3", "turn on drainage!!!");
    }
  }

  if (distance > 63 && distance < 100) {
    Serial.println("kedalaman air kurang dari 100cm");
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, LOW);
    digitalWrite(LED3, LOW);
  } else if (distance > 33 && distance < 66) {
    Serial.println("Jarak berada diantara 33 cm hingga 66 cm");
    digitalWrite(LED2, LOW);
    digitalWrite(LED1, LOW);
    digitalWrite(LED3, HIGH);
  } else if (distance > 0 && distance < 33) {
    Serial.println("Jarak kurang dari 33 cm ");
    digitalWrite(LED3, LOW);
    digitalWrite(LED2, HIGH);
    digitalWrite(LED1, LOW);
  }
}