네오픽셀

#include <SoftwareSerial.h>

#include <Adafruit_NeoPixel.h>

#define PIN 7 //디지털핀 7에 네오픽셀 연결

#define LEDNUM 2 //연결된 네오픽셀 LED 2개

Adafruit_NeoPixel strip = Adafruit_NeoPixel(LEDNUM, PIN, NEO_GRB + NEO_KHZ800);

SoftwareSerial bluetooth(2,3); //블루투스의 TXD는 2번핀, RXD는 3번핀에 연결

void setup() {

  strip.begin();

  strip.show(); 

  bluetooth.begin(9600);

}

byte r=0, g=0, b=0;

void loop(){

  if(bluetooth.available() > 2){

    r=bluetooth.read();

    g=bluetooth.read();

    b=bluetooth.read();

                                                                                                                                                                                                                                                                                                                                    bluetooth.flush();

    strip.setPixelColor(0,strip.Color(r,g,b));

    strip.setPixelColor(1,strip.Color(r,g,b));

    strip.show();

    }                                                                                                                      

 }

void loop(){ //네오픽셀 2개를 0.5초 간격으로 색상 랜덤하게 표현

  r = random(0, 255);

  g = random(0, 255);

  b = random(0, 255);

  strip.setPixelColor(0,strip.Color(r,g,b));

  strip.setPixelColor(1,strip.Color(r,g,b));

  strip.show();

  delay(500);

}