#define BLYNK_TEMPLATE_ID "TMPL6xGedUnE_"
#define BLYNK_TEMPLATE_NAME "automatic parking"
#define BLYNK_AUTH_TOKEN "Rj5LRatGjuJapnqrlDLRlvOGUg99Qr0L"

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

char auth[] = "Rj5LRatGjuJapnqrlDLRlvOGUg99Qr0L";
char ssid[] = "RIZKY";
char pass[] = "Karoja23";

Servo ioe;

int trig = 2;
int echo = 3;
long timeout;
int distance;

void setup() {
  Serial.begin(115200);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  ioe.attach(4);

  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");

  Blynk.begin(auth, ssid, pass);
}

void loop() {
  Blynk.run();
  
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);
  digitalWrite(trig, LOW);
  
  timeout = pulseIn(echo, HIGH);
  distance = timeout / 58.2;
  
  delay(500);

  if (distance <= 20) {
    ioe.write(180);
  }
  
  if (distance > 20) {
    ioe.write(0);
  }
}