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Arduino Forum Help with programming Arduino and ws2812 LEDs (Adafruit Neopixels)
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Related

Help with programming Arduino and ws2812 LEDs (Adafruit Neopixels)

funinalaska
funinalaska over 12 years ago

I am once again going to show my lack of experience with programming.

I am working on a project for the holidays and am trying to figure out how to make my programming a little simpler.

I am working on a "glittering" effect to make the neopixels strobe randomly across all of the strand.

I have a bit of code that I have set up as a subroutine (at least that is what I am used to calling them since the last time I programmed it was in BASIC)

void strobe() {
  int foo = random(0, 7);
  strip.setPixelColor(foo, 255, 255, 255); // Set pixel white
  strip.show(); // Update strip to show new pixel
  delay(10); // Hold it for a moment
  strip.setPixelColor(foo, 0, 0, 0); // Pixel off
  delay(25);
}

I have the random set to 8 pixels because I have been testing with an Adafruit 8 pixel stick

So any time I want to get a glitter I just put in a few lines of "strobe();"

The problem is that in order to get much of a "glitter" effect I have to put in about 20 lines of that.

So what I am wondering is how do I add a repeat parameter so I can do something more like "strobe(20);" to tell it to run that little sub 20 times.

Is this even possible?

There are a few other things I am looking for help on with programming these things as well, but for now I will start here.

And before anyone says anything, Yes, I know fast blinky lights can be a bad idea in general public because of the risks of encountering people sensitive to strobes. This is actually for a project for my Christmas tree.

Thank you in advance for anyone that can help me out.

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