#define ECHO_PIN 3
#define TRIG_PIN 2
#define pinBuzzer 5
#include <Servo.h>
Servo myservo;
int rotasi 90;
int interval = 0;
float readDistanceCM(){
digitalWrite(TRIG_PIN, LOW); delayMicroseconds(10);
delayMicroseconds(2); digitalWrite(TRIG_PIN, HIGH);
digitalWrite(TRIG_PIN, LOW);
int duration = pulseIn (ECHO_PIN, HIGH)
return duration 0.034/2;
}
void soundBuzzer(){
if(interval< 500){
tone(pinBuzzer, 250);
}else
if(interval 500) {
tone (pinBuzzer, 100, 800);
};
}