Using HC-05 for motor control on Arduino Leonardo

Hi all, I have got a 3 Wheeled omni robot that is using Leonardo board and would like to control the motor movement via Bluetooth (HC-05). Below is the sketch uploaded into the Arduino:

//Standard PWM DC control
int E1 = 5;     //M1 Speed Control
int E2 = 6;     //M2 Speed Control
int E3 = 11;    //M3 Speed Control
int M1 = 4;     //M1 Direction Control
int M2 = 7;     //M2 Direction Control
int M3 = 9;    //M3 Direction Control
int val = 0;

void setup(void) 
{ 
  Serial1.begin(9600);
}

void loop() 
{
  if(Serial1.available() > 0){
    val = Serial1.read();
      switch(val)
      {
        if (val==1)
        {
          analogWrite(E1,HIGH);
        }
        if (val==0)
        {
          analogWrite(E1,LOW);
        }
      }
  }
}

Below is my code for Matlab to enable Motor 3 to run when I enter 1 or 0.

b = Bluetooth ('HC-05',1);
fopen(b);
fwrite(b,1);

I am positive that all my wiring is connected properly. RX and TX on hc-05 are connected to Tx and Rx on Leonardo respectively.

Question is that I could not get any response from the robot at all. I am lost!

Please Help!