#include <WiFi.h>
#include <WiFiClient.h>
#include "ThingsBoard.h"
#include "DHTesp.h"

#define LED_Merah 13
#define LED_Kuning 12
#define LED_Hijau 14
#define Trig 4
#define Echo 15

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

#define token "TdWfGeFncGwLejUDFh1h"
#define thingsboard_server  "thingsboard.cloud"


BlynkTimer timer;

float jarak = 0;
float tinggi_air = 0;

void baca_jarak()
{
  digitalWrite(Trig, LOW);
  delayMicroseconds(2);
  digitalWrite(Trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(Trig, LOW);

  int duration = pulseIn(Echo, HIGH);
  jarak = duration * 0.034 / 2;
  Serial.print("Jarak: ");
  Serial.print(jarak);
  Serial.println(" CM");
}

void kirim_blynk()
{
  Blynk.virtualWrite(V0, tinggi_air);
  if (jarak < 100)
  {
    Blynk.virtualWrite(V1, 0);
    Blynk.virtualWrite(V2, 0);
    Blynk.virtualWrite(V3, 1);
  }
  else if (jarak >= 100 && jarak <= 150)
  {
    Blynk.virtualWrite(V1, 0);
    Blynk.virtualWrite(V2, 1);
    Blynk.virtualWrite(V3, 0);

  }
  else if (jarak > 150)
  {
    Blynk.virtualWrite(V1, 1);
    Blynk.virtualWrite(V2, 0);
    Blynk.virtualWrite(V3, 0);
  }
}


void setup() {
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  pinMode(LED_Merah, OUTPUT);
  pinMode(LED_Kuning, OUTPUT);
  pinMode(LED_Hijau, OUTPUT);
  pinMode(Trig, OUTPUT);
  pinMode(Echo, INPUT);
  timer.setInterval(1000L, kirim_blynk);
}

void loop() {
  digitalWrite(LED_Merah, LOW);
  digitalWrite(LED_Kuning, LOW);
  digitalWrite(LED_Hijau, LOW);

  baca_jarak();
  tinggi_air = 350 - jarak;
  Serial.print("Ketinggian Air: ");
  Serial.print(tinggi_air);
  Serial.println(" CM");
  
  if (jarak < 100)
  {
    digitalWrite(LED_Merah, HIGH);
  }
  else if (jarak >= 100 && jarak <= 150)
  {
    digitalWrite(LED_Kuning, HIGH);
  }
  else if (jarak > 150)
  {
    digitalWrite(LED_Hijau, HIGH);
  }
  Blynk.run();
  timer.run();
  delay(500);
}