// MCU BASIC: https://www.basic4mcu.com
// DateTime : 2019-11-11 오후 6:06:08
// by Ok-Hyun Park
//
int LED_R = 3,LED_Y = 4,LED_G=5;
int trig  =13,echo  =12;
int led1  = 8,led2  = 6;
int buser1= 7,buser2= 9;
//
void setup(){
  Serial.begin(9600);
  pinMode(LED_R,OUTPUT);  pinMode(LED_Y,OUTPUT); pinMode(LED_G,OUTPUT);
  pinMode(trig,OUTPUT);   pinMode(echo,INPUT);
  pinMode(led1,OUTPUT);   pinMode(led2,OUTPUT);
  pinMode(buser1,OUTPUT); pinMode(buser2,OUTPUT);
}
//
void loop(){
  turnOffAll(); digitalWrite(LED_R,HIGH);
  for(int i=0; i<100; i++){
    digitalWrite(trig,HIGH); delayMicroseconds(10); digitalWrite(trig,LOW); // 트리거
    unsigned long duration=pulseIn(echo,HIGH); float distance=duration/29.0/2.0; // 에코
    Serial.print(distance); Serial.println("cm"); // 시리얼모니터 거리값 출력
    //
    if(distance<15){
      digitalWrite(led1,HIGH);   digitalWrite(led2,HIGH);
      digitalWrite(buser1,HIGH); digitalWrite(buser2,HIGH);
    }
    else{
      digitalWrite(led1,LOW);   digitalWrite(led2,LOW);
      digitalWrite(buser1,LOW); digitalWrite(buser2,LOW);
    }
    delay(100);
  }
  digitalWrite(led1,LOW);   digitalWrite(led2,LOW);
  digitalWrite(buser1,LOW); digitalWrite(buser2,LOW);
  turnOffAll(); digitalWrite(LED_Y,HIGH); delay(2000);
  turnOffAll(); digitalWrite(LED_G,HIGH); delay(10000);
  turnOffAll(); digitalWrite(LED_Y,HIGH); delay(2000);
}
//
void turnOffAll(){
  digitalWrite(LED_R,LOW); digitalWrite(LED_Y,LOW); digitalWrite(LED_G,LOW);
}
 
부저가 반복적으로 울린다는 것이 어떤 동작을 말하는지 모르겠습니다.
led1 하고 buser1이  동일하게 움직이면 되나요?
현재는 동일하게 움직이고 있습니다.