LEDDisplay/display/display.ino

#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>

Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(16, 16, 2, 1, 16,
                            NEO_MATRIX_TOP + NEO_MATRIX_LEFT +
                            NEO_MATRIX_COLUMNS + NEO_MATRIX_ZIGZAG +
                            NEO_TILE_TOP + NEO_TILE_LEFT + NEO_TILE_ROWS +
                            NEO_TILE_PROGRESSIVE, NEO_GRB + NEO_KHZ800);
int i=0;

#define NUM_COLORS 7
const PROGMEM uint16_t colors[NUM_COLORS] = {
  Adafruit_NeoMatrix::Color(127, 0, 0),
  Adafruit_NeoMatrix::Color(0, 127, 0),
  Adafruit_NeoMatrix::Color(0, 0, 127),
  Adafruit_NeoMatrix::Color(127, 0, 127),
  Adafruit_NeoMatrix::Color(127, 127, 0),
  Adafruit_NeoMatrix::Color(0, 127, 127),
  Adafruit_NeoMatrix::Color(127, 127, 127)
};
uint16_t currColor[2];

void setup()
{
    matrix.begin();
    matrix.setTextSize(1);
    Serial.begin(9600);
    matrix.setTextWrap(false);
    Serial.println("Setup Done");
    currColor[0] = colors[random(NUM_COLORS)];
    currColor[1] = colors[random(NUM_COLORS)];
}

void loop()
{
    
    matrix.fillScreen(matrix.Color(0, 0, 0));
    matrix.setCursor(i, 0);
    matrix.setTextColor(currColor[0]);
    matrix.print("/usr/space @36C3");
    matrix.setTextColor(currColor[1]);
    matrix.setCursor(i*3, 8);
    matrix.print("Sticker Exchange                Sticker Exchange");
    portDISABLE_INTERRUPTS();
    delay(1);
    matrix.show();
    portENABLE_INTERRUPTS();
    if(--i < -16*6) {
        i = matrix.width();
        currColor[0] = colors[random(NUM_COLORS)];
        currColor[1] = colors[random(NUM_COLORS)];
    }
    delay(249);
}