Matrice LED 8 × 8 WS2812

Exemple de code Arduino :

#include <Adafruit_NeoPixel.h>
 
// Which pin on the Arduino is connected to the NeoPixels?
// On a Trinket or Gemma we suggest changing this to 1
#define PIN            3
 
// How many NeoPixels are attached to the Arduino?
#define NUMPIXELS      64
 
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
 
int delayval = 10; // delay for half a second
 
void setup() 
{
  pixels.begin(); // This initializes the NeoPixel library.
}
 
void loop() {
 
  // For a set of NeoPixels the first NeoPixel is 0, second is 1, all the way up to the count of pixels minus one.
 
  for(int i=0;i<NUMPIXELS;i++)
  {
    // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
    pixels.setPixelColor(i, pixels.Color(1,0,0)); // Moderately bright green color.
    pixels.show(); // This sends the updated pixel color to the hardware.
    //delay(delayval);
  }
  delay(1000);
  for(int i=0;i<NUMPIXELS;i++)
  {
    // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
    pixels.setPixelColor(i, pixels.Color(0,1,0)); // Moderately bright green color.
    pixels.show(); // This sends the updated pixel color to the hardware.
    //delay(delayval);
  }
  delay(1000);
  for(int i=0;i<NUMPIXELS;i++)
  {
    // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
    pixels.setPixelColor(i, pixels.Color(0,0,1)); // Moderately bright green color.
    pixels.show(); // This sends the updated pixel color to the hardware.
    //delay(delayval);
  }
  delay(1000);
}