ArtNetReceiveFastLED

#include <SPI.h>
#include <Ethernet.h>
#include <ArtNet.h>
#include "FastLED.h"


#define NUM_LEDS 50
// Data pin that led data will be written out over
#define DATA_PIN 5
// This is an array of leds.  One item for each led in your strip.
CRGB leds[NUM_LEDS];

// Default Configuration
ArtNetConfig config = {
  {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED}, // MAC
  {192, 168, 1, 177},                     // IP
  {255, 255, 255, 0},                   // Subnet mask
  0x1936,                               // UDP port
  false,                                 // DHCP
  0, 0,                                 // Net and subnet
  "OpenPixelNode",                      // Short name
  "Billy's Test Node v4", // Long name
  1,                                    // Number of ports
  {ARTNET_TYPE_DMX|ARTNET_TYPE_OUTPUT}, // Port types
  {0},                         // Input port addresses
  {0}                          // Output port addresses
};

// Defaults
byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
IPAddress ip(192,168,1,177);

// ArtNet class instance
ArtNet artnet = ArtNet(config, 530);


void setup() {

  //SPI.setClockDivider(SPI_CLOCK_DIV2);
  // Initialize Ethernet shield
  Ethernet.begin(mac, ip);

  uint16_t sizes[4] = {8192,0,0,0}; // 8 Kb memory to the first socket
  W5100.setRXMemorySizes(sizes);
  W5100.setTXMemorySizes(sizes);

  FastLED.addLeds<WS2811, DATA_PIN, GRB>(leds, NUM_LEDS);

  // Initialize ArtNet handler
  artnet.begin(); // Start ArtNet handling
}

void loop() {

  // Receive ArtNet package from Ethernet shield
  if(artnet.parsePacket()) {

    // Read and handle packet
    artnet.handleAny();

    // Check packet type
    if(artnet.getOpCode() == ARTNET_OPCODE_DMX) {

      // Get header and dmx data
      byte* dmx = artnet.getDmxData();
      byte port = artnet.getDmxPort();
      int dmx_length = artnet.getDmxLength();

      // Do your DMX handling here!!
      memcpy((CRGB*)leds, dmx, dmx_length / 3);
      FastLED.show();

    }
  }
}