#include "FastLED.h"
#define NUM_LEDS 19
CRGB leds[NUM_LEDS];
#define DATA_PIN 7

int fadeNum = 5;
int brightVal = 0;
int j=0;

void setup()
{
 FastLED.setBrightness(15);
   FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
}

void loop()
{

if (j<3){
 for (int i=10; i>=8; i--) //pattern 1
   {
      leds[i] = CRGB(100, 0, 0);
      FastLED.show();
      leds[i].fadeLightBy( 150 );
      delay(150);

   }
   j++;

}
else{   //pattern 2
  delay(4000);

   for(int i = 8; i <=10; i++ )
   {
    leds[i] = CRGB(100, 0, 0);
   leds[i].fadeLightBy(brightVal);

  }
  FastLED.show();
  brightVal= brightVal + fadeNum;
  if (brightVal==200){
    fadeNum=-fadeNum;
  }
  else if (brightVal==0){
    fadeNum=-fadeNum;
  }
  delay(20);
}
}