#include <BlynkSimpleEsp32.h>
#include <ESP32Servo.h>

#define BLYNK_PRINT Serial
#define trigPin 18
#define echoPin 5
#define led1 19

char auth[] = "ooAE3xJNerVFWkOkgJMlxil3PdfD5zcI";
char ssid[] = "Wokwi-GUEST";
char password[] = "";

const int servoPin = 21;

int data;

int pos = 0;

BlynkTimer timer;
Servo myservo;

void sendDataSensor(){
  Blynk.virtualWrite(V0, data);
}

void setup() {
  Serial.begin(115200);
  Blynk.begin(auth, ssid, password, "blynk.cloud", 80); 

  timer.setInterval(1000L, sendDataSensor);

  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(led1, OUTPUT);
  myservo.attach(servoPin, 500, 2400);
}

void loop() {   
  long duration, distance;
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1;
  if (distance <= 10){
    digitalWrite(led1, HIGH);
    pos=90;
    myservo.write(pos);

    delay(5000);

    digitalWrite(led1, LOW);
    pos=0;
    myservo.write(pos);
    
    data++;
    Serial.println(data);
  }
  Blynk.run();
  timer.run();
  delay(100);
}