NeoPixel WS2812b NodeMCU ESP8266 

1.  ต่อขาตามนี้
   • VCC - 3.3V
   • GND - GND
   • DIN - D2
2. ดาวน์โหลดไลบารีได้ที่นี่ http://www.arduinoall.net/arduino-tutor/code/Adafruit_NeoPixel.rar
3. โคดตัวอย่าง Arduino ESP8266 NeoPixel

   #include 
   
   #define PIN D2
   // How many NeoPixels are attached to the Arduino?
   #define NUMPIXELS 1
   
   Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
   
   void setup()
   {
   pixels.begin();
   }
   
   void loop()
   {
   int delayval = 500; // delay for half a second
   // For a set of NeoPixels the first NeoPixel is 0, second is 1, all the way up to the count of pixels minus one.
   
   for(int i=0;i<NUMPIXELS;i++)
   {
   // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
   pixels.setPixelColor(i, pixels.Color(0,255,0));
   pixels.show();
   delay(delayval);
   pixels.setPixelColor(i, pixels.Color(255,0,0));
   pixels.show();
   delay(delayval);
   pixels.setPixelColor(i, pixels.Color(0,0,255));
   pixels.show();
   delay(delayval);
   pixels.setPixelColor(i, pixels.Color(255,255,255));
   pixels.show();
   delay(delayval);
   }
   }

   กรณีมีหลายดวง

   #include 
   
   #define PIN D2
   // How many NeoPixels are attached to the Arduino?
   #define NUMPIXELS 8
   
   Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
   
   void setup()
   {
   pixels.begin();
   }
   
   void loop()
   {
   int delayval = 500;
   for (int i = 0; i < NUMPIXELS; i++)
   {
   pixels.setPixelColor(i, pixels.Color(0, 255, 0));
   pixels.show();
   delay(delayval);
   pixels.setPixelColor(i, pixels.Color(255, 0, 0));
   pixels.show();
   delay(delayval);
   pixels.setPixelColor(i, pixels.Color(0, 0, 255));
   pixels.show();
   delay(delayval);
   }
   }

คลิปวีดีโอสอน Arduino ESP8266 WS2812b NeoPixel : ESP8266 ควบคุม LED WS2812B NeoPixel