#define BLYNK_TEMPLATE_ID "TMPL6NDXJ28g0"
#define BLYNK_TEMPLATE_NAME "monitoring tandon air"
#define BLYNK_AUTH_TOKEN "uvz1CCzmPUo4tAO0ZlpEqVfbaynUbWBh"


char auth[] = "uvz1CCzmPUo4tAO0ZlpEqVfbaynUbWBh";
#define BLYNK_PRINT Serial

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



#define Echo 35
#define Trig 32
#define Merah 5
#define Oren 17
#define Hijau 16
#define Biru 4
#define relay 13



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

BlynkTimer timer;

float distance = 0;
float ketinggian = 0;
int SW_relay = 0;
//int nada;

BLYNK_WRITE(V6)
{
  SW_relay = param.asInt();
  if (SW_relay ==1){
    digitalWrite(relay, HIGH);
    Serial.println("Relay terbuka");
    Blynk.virtualWrite(V6, HIGH);
  }else{
    digitalWrite(relay, LOW);
    Serial.println("Relay tertutup");
    Blynk.virtualWrite(V6, LOW);
  }
}

void jarak(){
  digitalWrite(Trig,LOW);
  delay(2);
  digitalWrite(Trig, HIGH);
  delay(10);
  digitalWrite(Trig, LOW);

  int duration = pulseIn(Echo, HIGH);
  distance = duration * 0.034 / 2;
  ketinggian = 400 - distance ;

  Serial.print("Jarak: ");
  Serial.print(distance);
  Serial.println(" CM");

  Serial.print("Ketinggian Air : ");
  Serial.print(ketinggian);
  Serial.println(" cm");
  
}

void kirim_blynk(){
Blynk.virtualWrite(V0, ketinggian);
Blynk.virtualWrite(V5, ketinggian);
  if (distance < 50){
  Blynk.virtualWrite(V1, 0);
  Blynk.virtualWrite(V2, 0);
  Blynk.virtualWrite(V3, 0);
  Blynk.virtualWrite(V4, 1);

}
else if (distance >= 50 && distance <= 200){
  Blynk.virtualWrite(V1, 0);
  Blynk.virtualWrite(V2, 0);
  Blynk.virtualWrite(V3, 1);
  Blynk.virtualWrite(V4, 0);

}
else if (distance > 200 && distance <= 350){
  Blynk.virtualWrite(V1, 0);
  Blynk.virtualWrite(V2, 1);
  Blynk.virtualWrite(V3, 0);
  Blynk.virtualWrite(V4, 0);

}
else if (distance > 350 && distance <= 400){
  Blynk.virtualWrite(V1, 1);
  Blynk.virtualWrite(V2, 0);
  Blynk.virtualWrite(V3, 0);
  Blynk.virtualWrite(V4, 0);

}


}

void setup() {
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  pinMode(Trig, OUTPUT);
  pinMode(Echo, INPUT);
  pinMode(Merah, OUTPUT);
  pinMode(Oren, OUTPUT);
  pinMode(Hijau, OUTPUT);
  pinMode(Biru, OUTPUT);
  pinMode(relay, OUTPUT);
  timer.setInterval(2000L,kirim_blynk);
}

void loop() {
   
  digitalWrite(Merah, LOW);
  digitalWrite(Oren, LOW);
  digitalWrite(Hijau, LOW);
  digitalWrite(Biru, LOW);


  jarak();
  int ketinggian = 400 - distance ;
  Serial.print("Jarak: ");
  Serial.print(distance);
  Serial.println(" Cm");

  Serial.print("Ketinggian Air : ");
  Serial.print(ketinggian);
  Serial.println(" Cm");

  if( distance > 0 && distance < 50)
  {
    Serial.println("Penuh");
    digitalWrite(Biru, HIGH);
    
  }
  else if (distance > 50 && distance < 150)
  {
    Serial.println("Cukup");
    digitalWrite(Hijau, HIGH);
    //tone(bz, nada);
  }
  else if (distance > 150 && distance < 350)
  {
    Serial.println("Kurang");
    digitalWrite(Oren, HIGH);
    //tone(bz, nada);
  }
  else 
  {
    Serial.println("Habis");
    digitalWrite(Merah, HIGH);
  }
  Blynk.run();
  timer.run();
  delay(500);
}