#define BLYNK_TEMPLATE_ID "TMPL6g5bzDKKO"
#define BLYNK_TEMPLATE_NAME "Misaki"
#define BLYNK_AUTH_TOKEN "T-ZeraK2Lccdj2ZhHLKrLh3qYTeJDtF8"

#define BLYNK_PRINT Serial

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

char ssid[] = "Wokwi-GUEST"; //nama hotspot
char pass[] = ""; //password hotspot

// mendeklarasikan variabel
#define PIN_TRIG 22
#define PIN_ECHO 21
#define LOWLED 13
#define MIDLED 26
#define HIGHLED 34
#define MOTOR 19

long durasi;

unsigned int jarak = 0;

// inisiasikan 
void setup() {
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  {
    Serial.print(".");
    Serial.print("Connecting to WiFi");
    delay(500);
  }

  pinMode(LOWLED, OUTPUT);
  pinMode(MIDLED, OUTPUT);
  pinMode(HIGHLED, OUTPUT);
  pinMode(MOTOR, OUTPUT);
  digitalWrite(LOWLED, HIGH);
  digitalWrite(MIDLED, HIGH);
  digitalWrite(HIGHLED, HIGH);
  digitalWrite(MOTOR, LOW);
  
  Serial.begin(115200);
  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);
}

// Perulanggan
void loop() {
  Blynk.run();

  // Start a new measurement:
  digitalWrite(PIN_TRIG, LOW);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG, HIGH);

  // Read the result:
  durasi = pulseIn(PIN_ECHO, HIGH);
  Serial.print("Distance in CM: ");
  Serial.println(durasi / 58);
  Serial.print("Distance in inches: ");
  Serial.println(durasi / 148);
  Blynk.virtualWrite(V0, durasi);

  jarak = durasi / 58;


  if (jarak < 100)
  {
    digitalWrite(LOWLED, LOW);
    digitalWrite(MIDLED, HIGH);
    digitalWrite(HIGHLED, HIGH);
  }
  else if ((jarak > 200) && (jarak < 400))
  {
    digitalWrite(LOWLED, HIGH);
    digitalWrite(HIGHLED, HIGH);
    digitalWrite(MIDLED, LOW);
  }
  else if (jarak >= 400)
  {
    digitalWrite(HIGHLED, HIGH);
    digitalWrite(MIDLED, HIGH);
    digitalWrite(LOWLED, HIGH);
    digitalWrite(MOTOR, LOW);
  }

  delay(1000);
}