아두이노를 사용하여 일정 거리마다 속도를 조절할 수 있도록 하고 일정거리 이하에서 줄 LED가 깜빡이도록 코딩을 해봤는데 컴퓨터랑 연결중에는 문제가 없는데 USB포트를 뽑으면 오동작 합니다 코딩에 무슨 문제가 있는지 잘 모르겠어서 글 남깁니다 도와주시면 감사하겠습니다ㅠㅠ
 
#include <Adafruit_NeoPixel.h>
#define PIN 6
#define NUM_LEDS 5
Adafruit_NeoPixel strip = Adafruit_NeoPixel (NUM_LEDS, 6 ,
NEO_GRB + NEO_KHZ800);
int trig = 2;//초음파p
int echo = 3;//초음파2
int shock = 4; //진동센서
int laser = 9;//레이저 센서 
void setup() 
{
 // put your setup code here, to run once:
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
  
  pinMode(7,OUTPUT);
pinMode(8,OUTPUT);
pinMode(10,OUTPUT);
pinMode(12,OUTPUT);
pinMode(13,OUTPUT);
pinMode(5,OUTPUT);
pinMode(shock,INPUT);
pinMode(laser,OUTPUT);
delay(1000);
strip.setBrightness(100);
strip.begin();
strip.show();
 
 
 
 Serial.begin(9600);
}
void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(trig, HIGH);
delay(300);
digitalWrite(trig, LOW);
shock = digitalRead(4);
Serial.println(shock);
if(shock == HIGH){
  digitalWrite(laser,HIGH);
  
}else{
  digitalWrite(laser,LOW);
  
}
int duration = pulseIn(echo, HIGH);
int dis = duration * 0.034/ 2;
Serial.print(dis);
Serial.println("Cm");
{
  if(dis <= 10){
      strip.setPixelColor(0,255,0,0);
strip.setPixelColor(1,255,0,0);
strip.setPixelColor(2,255,0,0);
strip.setPixelColor(3,255,0,0);
strip.setPixelColor(4,255,0,0);
strip.show();
delay(100);
strip.setPixelColor(0,0,0,0);
strip.setPixelColor(1,0,0,0);
strip.setPixelColor(2,0,0,0);
strip.setPixelColor(3,0,0,0);
strip.setPixelColor(4,0,0,0);
strip.show();
delay(100);
  }
  if(dis <=5){
    digitalWrite(7,HIGH);
digitalWrite(8,HIGH);
analogWrite(10,100);
 digitalWrite(12,HIGH);
digitalWrite(13,HIGH);
analogWrite(5,100);
  }
else if(dis <=10){
  digitalWrite(7,HIGH);
digitalWrite(8,LOW);
analogWrite(10,140);
digitalWrite(12,HIGH);
digitalWrite(13,LOW);
analogWrite(5,140);
}
else if(dis <= 20){
  digitalWrite(7,HIGH);
digitalWrite(8,LOW);
analogWrite(10,255);
digitalWrite(12,HIGH);
digitalWrite(13,LOW);
analogWrite(5,255);
}
else if(dis <= 30){
  digitalWrite(7,HIGH);
digitalWrite(8,LOW);
analogWrite(10,255);
digitalWrite(12,HIGH);
digitalWrite(13,LOW);
analogWrite(5,255);
}
  }
}