#define RED_LED 6
#define GREEN_LED 9
#define BLUE_LED 5

int brightness = 255;
int rb = 0;
int gb = 0;
int bb = 0;
int fadeSpeed = 10;

void setup()
{
  pinMode(RED_LED, OUTPUT);
  pinMode(GREEN_LED, OUTPUT);
  pinMode(BLUE_LED, OUTPUT);
  
  Serial.begin(9600);
}

char* result[3];

void loop()
{
  if(Serial.available() > 1)
  {
    char input[12];
    byte size = Serial.readBytes(input, 11);
    // Add the final 0 to end the C string
    input[size] = 0;
    
    // Read each command pair 
    char* command = strtok(input, ";");
    int index = 0;
    while (command != 0)
    {
      result[index] = command;
      index += 1;
      // Find the next command in input string
      command = strtok(0, ";");
    }

    rb = atoi(result[0]);
    gb = atoi(result[1]);
    bb = atoi(result[2]);

    analogWrite(RED_LED, rb);
    analogWrite(GREEN_LED, gb);
    analogWrite(BLUE_LED, bb);

    String out = (String)rb + ";" + (String)gb + ";" + (String)bb;
    Serial.println(out);
  }
}