Arduino Neopixel LED Blink project Source Code

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#include <Adafruit_NeoPixel.h>

#define PIN 2	 // input pin Neopixel is attached to

#define NUMPIXELS      12 // number of neopixels in strip

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

int delayval = 30; // timing delay in milliseconds

int redColor = 0;
int greenColor = 0;
int blueColor = 0;

void setup() {
  // Initialize the NeoPixel library.
  pixels.begin();
}

void loop() {
  setColor();

  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(redColor, greenColor, blueColor));

    // This sends the updated pixel color to the hardware.
    pixels.show();

    // Delay for a period of time (in milliseconds).
    delay(delayval);
  }
}

// setColor()
// picks random values to set for RGB
void setColor(){
  redColor = random(0, 255);
  greenColor = random(0,255);
  blueColor = random(0, 255);
}
Circuit

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