FastLED Serial Interpreter

#include <FastLED.h>

#define LED_PIN1     10
#define LED_PIN2     11
#define LED_PIN3     12
#define NUM_LEDS     50
#define LED_TYPE     WS2811
#define COLOR_ORDER  GRB
CRGB leds1[NUM_LEDS];
CRGB leds2[NUM_LEDS];
CRGB leds3[NUM_LEDS];

void setup(){
  Serial.begin(115200);
  FastLED.addLeds<LED_TYPE, LED_PIN1, COLOR_ORDER>(leds1, NUM_LEDS);
  FastLED.addLeds<LED_TYPE, LED_PIN2, COLOR_ORDER>(leds2, NUM_LEDS);
  FastLED.addLeds<LED_TYPE, LED_PIN3, COLOR_ORDER>(leds3, NUM_LEDS);
}

void loop(){
  int i= 0;

  while(1){

    // sync with header
    // first character
    while(!Serial.available());
      if(Serial.read() != '>') {
        continue;
        }
    //second character
    while(!Serial.available());
      if(Serial.read() != '>') {
        continue;
        }

    // get data for each led
    while(i<NUM_LEDS){
      //read data in batches of 3 (1 led at a time)
      if (Serial.available() >= 3){

        leds1[i].g = Serial.read();
        leds1[i].r = Serial.read();
        leds1[i].b = Serial.read();


        i++; // increment only if data has been read
      }
    }
    i=0;

    while(i<NUM_LEDS){
      //read data in batches of 3 (1 led at a time)
      if (Serial.available() >= 3){

        leds2[i].g = Serial.read();
        leds2[i].r = Serial.read();
        leds2[i].b = Serial.read();


        i++; // increment only if data has been read
      }
    }
    i=0;

    while(i<NUM_LEDS){
      //read data in batches of 3 (1 led at a time)
      if (Serial.available() >= 3){

        leds3[i].g = Serial.read();
        leds3[i].r = Serial.read();
        leds3[i].b = Serial.read();


        i++; // increment only if data has been read
      }
    }


    FastLED.show();
  }
}