Triggered 8 bit breathing.

/* Triggered breathing
 *
 *  By: Andrew Tuline
 *
 *  Date: May, 2020
 *
 */

#include <FastLED.h>

#define LED_PIN 12
#define NUM_LEDS 40
#define COLOR_ORDER GRB
#define LED_TYPE WS2812B
#define MAX_BRIGHTNESS 255

struct CRGB leds[NUM_LEDS];

void setup() {
  Serial.begin(115200);
  LEDS.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  FastLED.setBrightness(MAX_BRIGHTNESS);
  FastLED.clear();
}



void loop() {

  EVERY_N_MILLIS(3000) {
    triggered(1);
  }

  EVERY_N_MILLIS(10) {
    triggered(0);
  }

  FastLED.show();
} // loop()



void triggered(uint8_t trigger) {

  static uint16_t counte = 256;     // High count.

    if (trigger) {counte=0;}
    if (counte < 256) {
      uint8_t breathing = cubicwave8(counte++);
      fill_solid(leds, NUM_LEDS, CHSV(40, 250, breathing));
    }
} // triggered()