#include // Ethernet stuff const IPAddress ip(192, 168, 1, 201); uint8_t mac[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB}; Artnet artnet; const uint16_t size = 512; uint8_t data[size]; uint8_t value = 0; uint32_t universe = 1; void setup() { Serial.begin(115200); Ethernet.begin(mac, ip); artnet.begin("127.0.0.1"); // send to localhost Serial.println("set subscriber"); // if Artnet packet comes to this universe, this function is called artnet.subscribe(universe, [](uint8_t* data, uint16_t size) { Serial.print("artnet data (universe : "); Serial.print(universe); Serial.println(") = "); for (size_t i = 0; i < size; ++i) { Serial.print(data[i]); Serial.print(","); } Serial.println(); }); Serial.println("start"); } void loop() { artnet.parse(); // check if artnet packet has come and execute callback value = millis() % 256; memset(data, value, size); artnet.set(universe, data, size); artnet.streaming(); // automatically send set data in 40fps // Serial.println("loop"); }