#include "FastLED.h"

#define DATA_PIN    6
//#define CLK_PIN   4
#define LED_TYPE    WS2811
#define COLOR_ORDER GRB
#define NUM_LEDS    270
CRGB leds[NUM_LEDS];

#define FRAMES_PER_SECOND  120

byte serialIn;

void setup() {
  delay(100);
  // put your setup code here, to run once:
  FastLED.addLeds<LED_TYPE,DATA_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  FastLED.setBrightness(255);

  Serial.begin(115200);


}

int serialPos = 0;
long lastMessage;

byte inByte[4];

void loop() {
  // put your main code here, to run repeatedly:

  for (int i = 0; i <= 90; i++) {
    leds[i].setRGB(inByte[0],0,0);
  }
  for (int i = 90; i <= 180; i++) {
    leds[i].setRGB(0,inByte[1],0);
  }
  for (int i = 180; i <= 270; i++) {
    leds[i].setRGB(0,0,inByte[2]);
  }

  FastLED.show();
  //FastLED.delay(1000/FRAMES_PER_SECOND);


  if (Serial.available() > 0) {
    if (millis() - lastMessage > 20) {  // New message start
      serialPos = 0;
    }
    inByte[serialPos] = Serial.read();
    serialPos ++;
    lastMessage = millis();

    if (serialPos > 3) {
      serialPos = 3;
    }
  }
}