I have a marquee that I made that I would like to do some

Rudy_Moore · August 12, 2015, 5:53pm

I have a marquee that I made that I would like to do some two dimensional effects with. I’m looking for code snippets that treat the x,y location of leds as an array that let you do effects on it. I’m still searching, but anything that jumps out at people from this description would be great. I have played with the XY code in the examples, but it’s designed for regular arrays, where this is irregular and really just a list of x,y locations…

Example effects I’m thinking of: filling up the array left to right in vertical lines, or similarly top to bottom. Fire effects that percolate upward. Water that flows over that fire and puts it out. And so on…

marmil · August 13, 2015, 5:00am

Have a look at this example from @Mark_Kriegsman . It’s mapping the shape of “sun glasses” to a matrix. You can probably do something similar.

gist.github.com

https://gist.github.com/kriegsman/475e907a9624352c748c

XYShades

#include <FastLED.h>
// Use Version 2.1 or later https://github.com/FastLED/FastLED/tree/FastLED2.1
// ZIP file https://github.com/FastLED/FastLED/archive/FastLED2.1.zip

// RGB Shades data output to LEDs on pin 5
#define LED_PIN  5

// RGB Shades color order 
#define COLOR_ORDER GRB
#define CHIPSET     WS2811

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And you can check out the RGB Shades Kickstarter project/code too.

Rudy_Moore · August 17, 2015, 4:37pm

This is great! I considered doing something like programmatically, but so much better to just encode it statically - speedwise.