Saturday, July 23, 2016

NeoPixel Rings in Poke Ball Colors

Just a quick post.  I'm playing with NeoPixels lately.  One set for my entry in the contest Lights for Life Challenge for one concept. The other is Adafruit's new Circuit Playground educational board.

Unless you've been stuck upgrading all your computers to Windows 10 before the deadline of July 29th, you may have heard that the 2000's sensation Pokemon has been reborn in a new augmented reality game Pokemon Go.

Poke Balls are the red and white spheres that a person uses to catch Pokemon.

Adafruit's NeoPixel light rings can be set to half red and half white to simulate a Poke Ball.

The code below has been set for the 10 pixels on Circuit Playground.  The code can be used on any Adafruit NeoPixel ring with quick changes to the constants at the start.

Have fun!

// CPpokeball   Paints your Adafruit NeoPixel ring in Poke Ball colors
// Set for Circuit Playground but works for all Adafruit NeoPixel Rings with
//   correct pixel pin number and pixel count 
// Mike Barela  July 23, 2016  MIT License

#include <Adafruit_NeoPixel.h>

const int pixelPin = 17;         // NeoPixel pin number for Circuit Playground
const int pixelCount = 10;       // Number of Neopixels (10 for Circuit Playground)
const int pixelBrightness = 30;  // 0 to 255

Adafruit_NeoPixel strip = Adafruit_NeoPixel(pixelCount, pixelPin, NEO_GRB + NEO_KHZ800);

uint32_t red = strip.Color(255, 0, 0);
uint32_t white = strip.Color(255, 255, 255);
uint32_t black = strip.Color(0, 0, 0);

void setup()
  // this resets all the neopixels to an off state

void loop()
  setPixelsPokeBall();              // set Pokeball colors
  delay(5000);                      // delay 5 deconds
  for( int8_t j=1; j<=5; j++) {     // blink Pokeball colors 5 times
  delay(2000);                     // wait a bit and start again

void setPixelsOff(void) {
   for(int8_t i=0; i<=9; i++) {
      strip.setPixelColor(i, black);

void setPixelsPokeBall(void) {
    for(int8_t i=0; i<(pixelCount/2); i++) {
        strip.setPixelColor(i, red);
    for(int8_t i=(pixelCount/2); i<pixelCount; i++) {
        strip.setPixelColor(i, white);