/* Comment this out to disable prints and save space */
#define BLYNK_TEMPLATE_ID "TMPL6J9vV1hjO"
#define BLYNK_TEMPLATE_NAME "Water Plant System"
#define BLYNK_AUTH_TOKEN "rZUUzW3KcgpIVGjeLnRcZ-6Qh3RSELol"

#define BLYNK_PRINT Serial

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

BlynkTimer timer;

long duration;
int distance;
long duration2;
int distance2;
boolean relayState = LOW;
boolean manualControl = false;

const int trigPin = 16;
const int echoPin = 17;
const int trigPin2 = 18;
const int echoPin2 = 19; 
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST"; //nama hotspot yang digunakan
char pass[] = ""; //password hotspot yang digunakan

void SendData() {
  Blynk.virtualWrite(V0, distance);
  Blynk.virtualWrite(V1, distance2);
}


BLYNK_CONNECTED() {
  // Request the latest state from the server
  Blynk.syncVirtual(V2);
}

BLYNK_WRITE(V2) {
  int pinValue = param.asInt();
  if (pinValue == 1) {
    relayState = HIGH;
    manualControl = true;  
  } else {
    relayState = LOW;
    manualControl = false;  
  }
  digitalWrite(12, relayState);
  Serial.println(relayState == HIGH ? "Relay Nyala" : "Relay Mati");
  delay(100);
}

void setup()
{ 
  Serial.begin(115200);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(trigPin2, OUTPUT);
  pinMode(echoPin2, INPUT);
  pinMode(12, OUTPUT);
  pinMode(27,OUTPUT);
  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);
}

void loop()
{
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = duration * 0.034 / 2;
  
  digitalWrite(trigPin2, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin2, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin2, LOW);
  duration2 = pulseIn(echoPin2, HIGH);
  distance2 = duration2 * 0.034 / 2;
  Blynk.run();
  SendData();
  if (!manualControl) {
    if (distance < 20) {
      relayState = HIGH;
    } else {
      relayState = LOW;
    }
  }
  digitalWrite(12, relayState);

  if (distance2 < 10) {
    digitalWrite(27,HIGH);
    delay(2000);
    digitalWrite(27,LOW);
    delay(2000);
  }
 }