custom_controller.ino

#include "FastLED.h"

template <EOrder RGB_ORDER=RGB>
class NetworkWriteController : public CPixelLEDController<RGB_ORDER> {
public:
	public NetworkWriteController() { 
		// TODO: Modify the constructor to take other options that you might want/need (esp8266 ip
		// address?  etc...)
	}
	
protected:
	virtual void init() {
    // do any one time setup here you might want for the controller
	}

	virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
		while(pixels.has(1)) {
      uint8_t r = pixels.loadAndScale0();
      uint8_t g = pixels.loadAndScale1();
      uint8_t b = pixels.loadAndScale2();

      // TODO: Put your "write data out to the esp8266" code here
      
			pixels.advanceData();
			pixels.stepDithering();
		}
	}

};

CRGB leds[NUM_LEDS];
NetworkWriteController ledController;

void setup() { 
  // do the esp8266 setup/configuration
  FastLED.addLeds(&ledController, leds, NUM_LEDS);
}

void loop() { 
  // blah blah blah animation code goes here

  FastLED.show();
}