#include <Adafruit_NeoPixel.h>

#define PIN 8

// Parameter 1 = number of pixels in strip
// Parameter 2 = pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
//   NEO_RGB     Pixels are wired for RGB bitstream
//   NEO_GRB     Pixels are wired for GRB bitstream
//   NEO_KHZ400  400 KHz bitstream (e.g. FLORA pixels)
//   NEO_KHZ800  800 KHz bitstream (e.g. High Density LED strip)
Adafruit_NeoPixel strip = Adafruit_NeoPixel(60, PIN, NEO_GRB + NEO_KHZ800);

uint8_t buff[5];

void setup() {
  strip.begin();
  strip.show(); // Initialize all pixels to 'off'
  
  Serial.begin(9600);
}

void loop() {
  // Some example procedures showing how to display to the pixels:
  // colorSet(strip.Color(255, 192, 255), 1000); // Red
  
  if (Serial.available() == 5) {

    for (uint8_t i = 0; i < 5; i++) {
      buff[i] = Serial.read();
      Serial.println(buff[i], DEC);
    }
    
    for (uint8_t p = 0; p < buff[1]; p++) {
      strip.setPixelColor(p + buff[0], strip.Color(buff[2], buff[3], buff[4]));
    }
    
    strip.show();
  } else if (Serial.available() > 5) {
    uint8_t zc = 0;
    while (Serial.available()) {
      uint8_t r = Serial.read();
      if (r == 0)
        zc++;
      else
        zc = 0;
        
      if (zc == 5)
        break;
    }
    
    // clear the buffer
    while(Serial.available())
      Serial.read();
    
    delay(100); // wait 100 ms
  }
}