gistfile1.txt

#include <Adafruit_NeoPixel.h>

const int LED_PIN = 2; //D4
// 0 - D3
// 1 - TX
// 2 - D4 LED
// 3 - RX
// 4 - D2
// 5 - D1
// 6 - halt
// 7 - halt
// 8 - halt
// 9 - halt
// 10 - SK
// 11 - halt
// 12 - D6
// 13 - D7
// 14 - D5
// 15 - D8
// 16 - D0

#define P_WIDTH 32
#define P_HEIGHT 8
#define P_TOTAL (P_WIDTH*P_HEIGHT)

#define PIN 14
#define NUMPIXELS P_TOTAL
const uint16_t PixelCount = NUMPIXELS;
const uint8_t PixelPin = PIN; 
#define colorSaturation 2
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

int k = 0;

void setup() {
    pinMode(LED_PIN, OUTPUT);
    pixels.begin();
    for (int i = 0; i < PixelCount; i++) {
      pixels.setPixelColor(i, pixels.Color(0,0,0));
    }
  pixels.show();
  k = 0;
}

void loop() {
  digitalWrite(LED_PIN, LOW);
  
  for (int i = 0; i < PixelCount; i++) {
    pixels.setPixelColor(i, pixels.Color((k+i)&0xff,(k+i)&0xff,(k+i)&0xff));
  }
  pixels.show();
  k++;
  digitalWrite(LED_PIN, HIGH);
}