/*

https://forum.arduino.cc/t/odd-unit8-t-decrement-loop-behavior/1261346
*/


#include <FastLED.h>

#define DATA_PIN 4
//#define CLOCK_PIN 5
#define NUM_LEDS 16
#define LED_TYPE WS2811

CRGB leds[NUM_LEDS];

uint8_t i;
uint8_t cnt;

void setup() {
      Serial.begin(115200);
      FastLED.addLeds<LED_TYPE, DATA_PIN, GRB>(leds, NUM_LEDS);
      FastLED.setBrightness(255);
      cnt=200;
}

void loop() {
  for (i=0;i<NUM_LEDS;i++) {
      leds[i]=CHSV(160,255,cnt/2);
    }
  
  FastLED.show();

  if (cnt > 2){
  cnt=cnt-1;  } else cnt = 200;

  delay(4);
}