RGB LED Control using bluetooth module

 Code:-

String voice;

#define GREEN 10

#define BLUE 11

#define RED 9

void setup() 

{                                            // put your setup code here, to run once:

  Serial.begin(9600);

   pinMode(GREEN, OUTPUT);

  pinMode(BLUE, OUTPUT);

  pinMode(RED, OUTPUT);

   analogWrite(RED,255); 

   analogWrite(GREEN,255);                    // Since LED must be off in the beginning

   analogWrite(BLUE,255);

}

  int redVal;

  int greenVal;

  int blueVal;

void loop() {

 

  while (Serial.available())   //Check if there is an available byte to read

  {                            

  delay(10);                   //Delay added to make thing stable

  char c = Serial.read();      //Conduct a serial read

  if (c == '#') {break;}       //Exit the loop when the # is detected after the word

  voice += c;                  //Shorthand for voice = voice + c

  } 

  if (voice.length() > 0) {

    Serial.println(voice);

  //----------Control Multiple Pins/ LEDs----------// 

       if(voice == "*red")//                                FOR RED COLOUR OF THE LED 

     {analogWrite(RED,255);

    analogWrite(BLUE,0);

    analogWrite(GREEN,255);

     

     }  

  else if(voice == "*green")//                              FOR GREEN COLOUR OF THE LED !

     {

    analogWrite(GREEN,0);

    analogWrite(RED,255);

    analogWrite(BLUE,255);

     }

  else if(voice == "*blue")//                                FOR BLUE COLOUR OF THE LED !

     {

    analogWrite(RED,0); 

     analogWrite(GREEN,255);

     analogWrite(BLUE,255);

     }

  

  else if(voice == "*white")//                               FOR WHITE COLOUR OF THE LED !

     {

    analogWrite(RED,0);

    analogWrite(GREEN,0);

    analogWrite(BLUE,0);

     }

   else if(voice == "*good night")//                          FOR TURNING OFF LED !

     {

    analogWrite(RED,255);

    analogWrite(GREEN,255);

    analogWrite(BLUE,255);

     }

    

    

voice="";                                                       //Reset the variable after initiating

}

}