onSync

private void Disconnect()
{
if (btSocket!=null) //If the btSocket is busy
{
try
{
btSocket.close(); //close connection
Toast.makeText(getApplicationContext(),"Connection closed successfully",Toast.LENGTH_SHORT).show();

}
catch (IOException e)
{
Toast.makeText(getApplicationContext(),"Error in closing connection",Toast.LENGTH_SHORT).show();
}
}
finish(); //return to the first layout

}

private void turnOffLed()
{
if (btSocket!=null)
{
try
{
btSocket.getOutputStream().write("TF".toString().getBytes());
}
catch (IOException e)
{
Toast.makeText(getApplicationContext(),"Error in sending command",Toast.LENGTH_SHORT).show();
}
}
}

private void turnOnLed()
{
if (btSocket!=null)
{
try
{
btSocket.getOutputStream().write("TO".toString().getBytes());
}
catch (IOException e)
{
Toast.makeText(getApplicationContext(),"Error in sending command",Toast.LENGTH_SHORT).show();
}
}
}