FastLED and Neopixel Help I'm in the process of trying to create a "Aurora Glow" effect using a Particle Photon and a Neopixel ring.

I have the code fully working using a single Breadboard-friendly NeoPixel however when upgrading this to a NeoPixel Ring (16 LED) the code does not run as expected

The current working code for a single NeoPixel can be found here: http://pastebin.com/Yj1cywpx

It was my assumption that i could change Line 33 from one LED to Sixteen e.g.:

FastLED.addLeds&lt;NEOPIXEL, 6&gt;(&amp;led, 1);


to

FastLED.addLeds&lt;NEOPIXEL, 6&gt;(&amp;led, 16);


However when I run this code rather than all NeoPixels cycling through the Aurora Colours, only the very Top LED does and rest are either off or a static colour (e.g. http://imgur.com/a/MvKZQ)

Could someone please advise what i missing? Apologies if this is a "Noob" question but this is my 2nd Arduino project and I cannot understand why this would not work.

Thanks
Never used neoPixels in arduino before so this is a complete guess based on reading the code but it looks like you are only setting the colour of the first LED.

Try creating 16 LED colours:

CRGB led[16];


and then setting them all:

for (int i = 0;i&lt;15; i++) {
  int colourIndex = index + i;
  if (colourIndex &gt; 15)
    colourIndex -= 15;
  led[i] = ColorFromPalette(auroraPalette, colourIndex , 255, LINEARBLEND);
}


edit - as @rDg indicates in his answer

FastLED.addLeds&lt;NEOPIXEL, 6&gt;(&amp;led, 16);


becomes

FastLED.addLeds&lt;NEOPIXEL, 6&gt;(led, 16);


since led is now an array not a single value

Finally I think paletteSize should only be 16 not 5*16, you only have 16 colours in there.