#include <ESP32Servo.h>
int trigpin = 4;
int echopin = 5;
int servopin = 2;
int awal = 0;
Servo servo1;
float duration, distance;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(trigpin, OUTPUT);
  pinMode(echopin, INPUT);
  servo1.attach(servopin);
}

void loop() {
  digitalWrite(trigpin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigpin, LOW);
  duration = pulseIn(echopin, HIGH);
  distance = 0.017 * duration;

  Serial.print("Distance = ");
  Serial.print(distance);
  Serial.println(" cm");
  delay(1000);

  if(distance <= 10){
    servo1.write(180);
  }
  else {
    servo1.write(0);
  }
}