#define BLYNK_TEMPLATE_ID "TMPLaXSkSE8v"
#define BLYNK_TEMPLATE_NAME "pendeteksi ketinggian air"

#include <wifi.h>
#include <wifiClient.h>
#include <BlinkSympelEsp32.h>

#define Echo 15
#define Trig 4
#define merah 14
#define kuning 12
#define hijau 13

char ssid[] = "PangayouwFams";
char pass [] = "Turu2023";

BlynkTimer timer;

float distance = 0;
float ketinggian = 0;

void ukur_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 = 350 - distance;

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

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

void kirim_blynk() {
  Blynk.virtualWrite(V0, ketinggian);
  Blynk.virtualWrite(V4, ketinggian);
  if (distance < 100) {
    Blynk.virtualWrite(V1,0);
    Blynk.virtualWrite(V2,0);
    Blynk.virtualWrite(V3,0);
  }
  else if (distance >= 100 && distance <=150){
    Blynk.virtualWrite(V1,0);
    Blynk.virtualWrite(V2,0);
    Blynk.virtualWrite(V3,0);
  }
  else if (distance >150){
    Blynk.virtualWrite(V1,0);
    Blynk.virtualWrite(V2,0);
    Blynk.virtualWrite(V3,0)
  }
}
void setup(){
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  pinMode (Trig, OUTPUT);
  pinMode (Echo, INPUT);
  pinMode (merah, OUTPUT);
  pinMode (kuning, OUTPUT);
  pinMode (hijau, OUTPUT);
  timer.setInterval(2000L, kirim_blynk);
}
void loop(){
  digitalWrite(merah, LOW);
  digitalWrite(kuning, LOW);
  digitalWrite(hijau, LOW);

  ukur_jarak();
  int ketinggian = 350 - distance;
  Serial.print("Jarak : ");
  Serial.print(distance);
  Serial.print(" CM");
   if (distance >100 && distance < 150)
   {
     Serial.println("waspada");
     digitalWrite(kuning, HIGH);
   }
   else if (distance >0 && distance <100)
   {
     Serial.println("Bahaya");
     digitalWrite(merah, HIGH);
   }
   else {
     Serial.println("Aman");
     digitalWrite(hijau, HIGH);
   }
   Blynk.run();
   timer.run();
   delay(500);
}