Arduino WS2812 control

Projects Programming
11

And i suppose you can just set those variables here

// Set the output pin number
void Adafruit_NeoPixel::setPin(uint8_t p) {
  if(begun && (pin >= 0)) pinMode(pin, INPUT);
    pin = p;
    if(begun) {
      pinMode(p, OUTPUT);
      digitalWrite(p, LOW);
    }
#ifdef __AVR__
    port    = portOutputRegister(digitalPinToPort(p));
    pinMask = digitalPinToBitMask(p);
#endif
}

All this code comes from a slightly old version of the library, but i guess this would not have changed much.