NeoPioxel Matrix with Arduino

Make Your Own NeoPixel  based 
Scrolling Display using Arduino

Video link: https://youtu.be/qFJ4TIoQ_4o

Library needed: Adafruit_NeoPixel

Arduino Code:

# Basic Program - Part 1

#This program lights all 128 LEDs one by one in sequence 

#include <Adafruit_NeoPixel.h>

#ifdef __AVR__

 #include <avr/power.h> // Required for 16 MHz Adafruit Trinket

#endif

// Which pin on the Arduino is connected to the NeoPixels?

#define PIN   2

// How many NeoPixels are attached to the Arduino?

#define NUMPIXELS 128

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

#define DELAYVAL 100 // Time (in milliseconds) to pause between pixels

void setup() {

  

#if defined(__AVR_ATtiny85__) && (F_CPU == 16000000)

  clock_prescale_set(clock_div_1);

#endif

  pixels.begin();

}

void loop()

{

  pixels.clear(); // Set all pixel colors to 'off'

  for(int i=0; i<NUMPIXELS; i++) 

  {

    pixels.setPixelColor(i, pixels.Color(150, 0, 0));

    pixels.show();   

    delay(DELAYVAL);

   }

}

Part 2:

Video link :
NeoPixel Based Scrolling Display - Part 2  

https://youtu.be/JEcPxMRBh-A

Code To Display '01' :

#include <Adafruit_NeoPixel.h>

#define PIN 2 

#define NUMPIXELS 128

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

#define DELAYVAL 100 

void setPixel(int x,int y, int r=150,int g=0,int b=0)

{

  int p=x*16+y;

  pixels.setPixelColor(p, pixels.Color(r,g,b));  

}

void setup() 

{

  pixels.begin();

}

void loop() 

{

    pixels.clear();

    setPixel(0,3);

    setPixel(0,4);

    setPixel(1,2);

    setPixel(1,5);

    setPixel(2,1);

    setPixel(2,6);

    setPixel(3,1);

    setPixel(3,6); 

    setPixel(4,1);

    setPixel(4,6);

    setPixel(5,1);

    setPixel(5,6);    

    setPixel(6,2);

    setPixel(6,5);

    setPixel(7,3);

    setPixel(7,4); 

    setPixel(0,10);

    setPixel(1,9);

    setPixel(1,10);

    setPixel(2,10); 

    setPixel(3,10);

    setPixel(4,10);

    setPixel(5,10);

    setPixel(6,10);

    setPixel(7,10);

    setPixel(7,9);

    setPixel(7,11);                       

    pixels.show();

}

Code To Display colored Pixels :

#include <Adafruit_NeoPixel.h>

#define PIN 2 

#define NUMPIXELS 128

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

#define DELAYVAL 100 

void setPixel(int x,int y, int r=150,int g=0,int b=0)

{

  int p=x*16+y;

  pixels.setPixelColor(p, pixels.Color(r,g,b));  

}

void setup() 

{

  pixels.begin();

}

void loop() 

{

    pixels.clear();

    setPixel(3,4,255,255,255); 

    setPixel(5,3,0,255,0); 

    setPixel(1,9,0,0,200); 

    setPixel(6,11,255,0,255);                               

    pixels.show();

    delay(500); 

}

Code To Scroll a vertical bar: 

#include <Adafruit_NeoPixel.h>

#define PIN 2 

#define NUMPIXELS 128

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

#define DELAYVAL 100 

int a[8]={0,1,1,0,1,1,1,0};

void setPixel(int x,int y, int r=150,int g=0,int b=0)

{

  int p=x*16+y;

  pixels.setPixelColor(p, pixels.Color(r,g,b));  

}

void setup() 

{

  pixels.begin();

  pixels.clear();

}

void loop() 

{

  for (int j=14; j>3; j--)

  {

    pixels.clear();

    for (int i=0;i<8;i++)

    {

      if(a[i]==0)

         setPixel(i,j,0,0,0);

      if(a[i]==1)

         setPixel(i,j);      

      pixels.show();

    } 

      delay(100);   

  }

}