Arduino Uno HC-05 Bluetooth Controlled LED using Mobile

1 void setup() {
2Serial.begin(9600);
3 pinMode(3, OUTPUT); // put   your setup code here, to run once:
4 pinMode(4, OUTPUT);
5 pinMode(5, OUTPUT);
6   }
7
8void loop() {
9  // put your main code here, to run repeatedly:
10 if(Serial.available()>0)
11    {     
12      char data= Serial.read(); // reading the data received from the   bluetooth module
13      switch(data)
14      {
15        case '1': digitalWrite(3,   HIGH);break; 
16        case '2': digitalWrite(4, HIGH);break;         
17        case   '3': digitalWrite(5, HIGH);break;
18
19        case '4': digitalWrite(3, LOW);break;   
20        case '5': digitalWrite(4, LOW);break;         
21        case '6':   digitalWrite(5, LOW);break;
22        
23        default : break;
24      }
25       Serial.println(data);
26   }
27   delay(50);
28}

1 void setup() {
2Serial.begin(9600);
3 pinMode(3, OUTPUT); // put  your setup code here, to run once:
4 pinMode(4, OUTPUT);
5 pinMode(5, OUTPUT);
6  }
7
8void loop() {
9  // put your main code here, to run repeatedly:
10 if(Serial.available()>0)
11   {     
12      char data= Serial.read(); // reading the data received from the  bluetooth module
13      switch(data)
14      {
15        case '1': digitalWrite(3,  HIGH);break; 
16        case '2': digitalWrite(4, HIGH);break;         
17        case  '3': digitalWrite(5, HIGH);break;
18
19        case '4': digitalWrite(3, LOW);break;  
20        case '5': digitalWrite(4, LOW);break;         
21        case '6':  digitalWrite(5, LOW);break;
22        
23        default : break;
24      }
25      Serial.println(data);
26   }
27   delay(50);
28}