#define FASTLED_ESP8266_NODEMCU_PIN_ORDER
#include "FastLED.h"

#define DATA_PIN 0
#define CLOCK_PIN 2

#define NUM_LEDS 40
#define BRIGHTNESS 255
CRGB leds[NUM_LEDS];


void setup() {
// plug led data into D7 or gpio13

FastLED.addLeds<WS2812B, 13>(leds, NUM_LEDS);

FastLED.setBrightness( BRIGHTNESS );

}

void loop() {
  // Turn the LED on, then pause
  leds[0] = CRGB::Red;
  FastLED.show();
  delay(500);
  // Now turn the LED off, then pause
  leds[0] = CRGB::Black;
  FastLED.show();
  delay(500);
}