#define ECHO_PIN 3
#define TRIG_PIN 2
#define pinBuzzer 5

#include <Servo.h>

Servo myservo;

int potpin =0;
int val;

float readDistanceCM() {
  digitalWrite(TRIG_PIN,LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN,HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN,LOW);
  int duration = pulseIn(ECHO_PIN, HIGH);
  return duration * 0.034 / 2;
}

void setup() {
 pinMode(pinBuzzer, OUTPUT);
 pinMode(TRIG_PIN, OUTPUT);
 pinMode (ECHO_PIN, INPUT);
 Serial.begin(115200);
 myservo.attach(9);
}

void loop() {

val = analogRead(potpin); 
float readDistanceCM();
if (readDistanceCM()<100){
  myservo.write(val);
  delay(15);
  tone (pinBuzzer, 150);
  delay(1000);
}
Serial.print("Jarak: ");
Serial.println(readDistanceCM());

  //val = analogRead(potpin);
  //val = map(val, 0, 1023, 0, 180);
  

  //noTone(buzzerPin);
  //delay(1000);
  //tone (buzzerPin, 100, 1000);
  //delay(2000);

}