int pinR = 8;
int pinG = 9;
int pinB = 5;

#define DELAYVAL 50 // Time (in milliseconds) to pause between pixels

void setup() {

  pinMode(pinR,OUTPUT);
  pinMode(pinG,OUTPUT);
  pinMode(pinB,OUTPUT);
  Serial.begin(9600);    //start serial communication @9600 bps
}


void loop() {
  
  if(Serial.available()){  //id data is available to read

    char val = Serial.read();

    if(val == 'r'){       //if r received
analogWrite(pinR, 255);
analogWrite(pinG, 0);
analogWrite(pinB, 0);
    delay(DELAYVAL);
  }
      

if(val == 'g'){       //if g received
analogWrite(pinR, 0);
analogWrite(pinG, 255);
analogWrite(pinB, 0);
    delay(DELAYVAL);
  }
      
    
    if(val == 'b'){       //if b received
analogWrite(pinR, 0);
analogWrite(pinG, 0);
analogWrite(pinB, 255);
    delay(DELAYVAL);
  }
      

    if(val == 'w'){       //if y received
analogWrite(pinR, 255);
analogWrite(pinG, 255);
analogWrite(pinB, 255);
    delay(DELAYVAL);
  }
      
      
    if(val == 'y'){       //if y received
analogWrite(pinR, 255);
analogWrite(pinG, 238);
analogWrite(pinB, 0);
    delay(DELAYVAL);

  }
      



          if(val == 'o'){       //if y received
analogWrite(pinR, 255);
analogWrite(pinG, 136);
analogWrite(pinB, 0);
    delay(DELAYVAL);
  }
      

                if(val == 'p'){       //if y received
analogWrite(pinR, 255);
analogWrite(pinG, 0);
analogWrite(pinB, 242);
    delay(DELAYVAL);
  }
      
      
    if(val == 'f'){       //if f received
analogWrite(pinR, 0);
analogWrite(pinG, 0);
analogWrite(pinB, 0);
    delay(DELAYVAL);
  }
      } 
}