WS2812B Fastled Theater chase

Other Hardware LEDs and Multiplexing
12

Here is the second one : it compiles ok, please try it and tell me.

#include <FastLED.h>

// Define the array of leds
#define LED_DT 6
#define COLOR_ORDER GRB
#define LED_TYPE WS2812
#define NUM_LEDS 150
uint8_t max_bright = 255;
struct CRGB leds[NUM_LEDS];

int N = 5;

void setLEDs (int K, int N) {
  for (int i = 0; i < NUM_LEDS; i++) {
    if (i % N == K) leds[i].setRGB (127, 0, 0); // set red LED
  }
}

void setup() {
  delay (1000);
  LEDS.addLeds<LED_TYPE, LED_DT, COLOR_ORDER>(leds, NUM_LEDS);
  FastLED.setBrightness(max_bright);
}

void loop() {
  FastLED.clear();
  for  (int i = 0; i < N; i++) {
    setLEDs (i, N);
  }
  FastLED.show();
  delay (50);
}

If it works, you'll see red leds moving along your strip. Then we can play with it changing colors.
N = 5 is the interval between lit leds. Anyways, that's what I'm trying to get...
delay(50) sets the speed : increase the number to decrease the speed.

I'm in France, so there's almost no time difference with you. Also not much years... :wink: