MirroringSample.ino

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// MirroringSample - see https://github.com/FastLED/FastLED/wiki/Multiple-Controller-Examples for more info on
// using multiple controllers.  In this example, we're going to set up four NEOPIXEL strips on four
// different pins, and show the same thing on all four of them, a simple bouncing dot/cyclon type pattern
 
#include <FastLED.h>
 
#define NUM_LEDS_PER_STRIP 60
CRGB leds[NUM_LEDS_PER_STRIP];
 
// For mirroring strips, all the "special" stuff happens just in setup.  We
// just addLeds multiple times, once for each strip
void setup() {
  // tell FastLED there's 60 NEOPIXEL leds on pin 4
  FastLED.addLeds<NEOPIXEL, 4>(leds, NUM_LEDS_PER_STRIP);
 
  // tell FastLED there's 60 NEOPIXEL leds on pin 5
  FastLED.addLeds<NEOPIXEL, 5>(leds, NUM_LEDS_PER_STRIP);
 
  // tell FastLED there's 60 NEOPIXEL leds on pin 6
  FastLED.addLeds<NEOPIXEL, 6>(leds, NUM_LEDS_PER_STRIP);
 
  // tell FastLED there's 60 NEOPIXEL leds on pin 7
  FastLED.addLeds<NEOPIXEL, 7>(leds, NUM_LEDS_PER_STRIP);
}
 
void loop() {
  for(int i = 0; i < NUM_LEDS_PER_STRIP; i++) {
    // set our current dot to red
    leds[i] = CRGB::Red;
    FastLED.show();
    // clear our current dot before we move on
    leds[i] = CRGB::Black;
    delay(100);
  }
 
  for(int i = NUM_LEDS_PER_STRIP-1; i >= 0; i--) {
    // set our current dot to red
    leds[i] = CRGB::Red;
    FastLED.show();
    // clear our current dot before we move on
    leds[i] = CRGB::Black;
    delay(100);
  }
}