void setup()
 {
Serial.begin(9600);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
}

void loop() 
{
if(Serial.available());
{
 char bluetooth signal = Serial.read();
}
if(bluetooth signal ="r");
{
  digitalWrite(9,1);
delay(1500);
digitalWrite(9,0);
}
if(bluetooth signal ="g");
{
  digitalWrite(10,1);
delay(1500);
digitalWrite(10,0);
}
if(bluetooth signal ="b");
{
  digitalWrite(11,1);
delay(1500);
digitalWrite(11,0);
}
if(bluetooth signal ="m");
{
  digitalWrite(9,1);
  digitalWrite(11,1);
delay(1500);
digitalWrite(9,0);
digitalWrite(11,0);
}
if(bluetooth signal ="y");
{
  digitalWrite(9,1);
  digitalWrite(10,1);
delay(1500);
digitalWrite(9,0);
digitalWrite(10,0);
}
if(bluetooth signal ="c");
{
  digitalWrite(10,1);
  digitalWrite(11,1);
delay(1500);
digitalWrite(10,0);
digitalWrite(11,0);
}
if(bluetooth signal ="w");
{
  digitalWrite(9,1);
  digitalWrite(11,1);
  digitalWrite(10,1);
delay(1500);
digitalWrite(9,0);
digitalWrite(11,0);
 digitalWrite(10,0);
}
}