#include <Servo.h>

#define ECHO_PIN 8
#define TRIG_PIN 13
#define pinBuzzer 7

Servo myservo;

void setup() {
pinMode(TRIG_PIN, OUTPUT);
pinMode(ECHO_PIN, INPUT);
pinMode(pinBuzzer,OUTPUT);

Serial.begin(115200);
myservo.attach(8);
}

float readDistanceCM() {
 digitalWrite(TRIG_PIN, LOW);
 delayMicroseconds(2);
 digitalWrite(TRIG_PIN, LOW);
 delayMicroseconds(10);
 digitalWrite(ECHO_PIN, LOW);
 int duration = pulseIn(ECHO_PIN, HIGH);
 return duration * 0.034 / 2;
}
void loop() {
  float distance = readDistanceCM();
  Serial.println("JARAK SENSOR");

  if (distance <= 200){
    myservo.write(90);
    delay(25);
tone (pinBuzzer,1000);
delay(200);
  }
else {
  myservo.write(0);
  noTone(pinBuzzer);
}
}