#include <FastLED.h>

#define LED_PIN18 7 
#define LED_PIN19 8 
#define LED_PIN21 12
#define LED_PIN22 13
#define COLOR_ORDER GRB                                            // If colours look wrong, play with this
#define CHIPSET WS2812B 

int const NUM_LEDS=30;
CRGB leds18[NUM_LEDS];
CRGB leds19[NUM_LEDS];
CRGB leds21[NUM_LEDS];
CRGB leds22[NUM_LEDS];

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
    FastLED.addLeds<WS2812, LED_PIN18, GRB>(leds18, NUM_LEDS);
    FastLED.addLeds<WS2812, LED_PIN19, GRB>(leds19, NUM_LEDS);
    FastLED.addLeds<WS2812, LED_PIN21, GRB>(leds21, NUM_LEDS);
    //FastLED.addLeds<WS2812, LED_PIN22, GRB>(leds22, NUM_LEDS);

delay(2000);
      FastLED.clear();
  FastLED.show();
}

void loop() {
  // put your main code here, to run repeatedly:
  
  delay(100); // this speeds up the simulation
  
   Serial.println("ON");
 for(int i=0; i<NUM_LEDS;i++){
   leds18[i]=CHSV(0,255,255);
   leds19[i]=CHSV(42,255,255);
   leds21[i]=CHSV(84,255,255);
  // leds18[i]=CHSV(62,255,255);
  FastLED.show();
 
 }
 
  delay(100);
   Serial.println("OFF");
  for(int j=0; j<NUM_LEDS;j++){
   leds18[j]=CHSV(62,255,255);
   leds19[j]=CHSV(0,0,0);
   leds21[j]=CHSV(0,0,0);
  // leds15[j]=CHSV(0,0,0);
   FastLED.show();
    

  }
  
}