Limit switch to reverse motor movement problem

Question

Hi guys, recently i am trying to create a robot that uses RF controller, arduino and labview. The issue i facing now is i am unable to trigger my limit switch to make my motor movement reverse when it hits on it. For normal motor trigger from lab view, it is working perfectly. But when comes to limit switch, it has no response. The following files is my VI and arduino coding. For the arduino coding, lets just focus on case '1' since the triggering is not yet complete. The motor i use is only a normal DC motor without encoder and connected to a L298 board. Is it my VI problem?
Attachments:
Movement Control Key control5.vi ‏70 KB

Answer 1

1. Basically, i just remove it?
2. The limit switch is wired like a (pull up resistor concept) and connected to other digital port in arduino. It sends signal into interupt the motor movement.
case '1': //if the controller type f
Serial.println("forward");
if (switch1 == HIGH)
digitalWrite(en1,HIGH);
digitalWrite(en2,HIGH);
digitalWrite(en1o2,HIGH);
digitalWrite(en2o2,HIGH);
digitalWrite(in1,LOW);
digitalWrite(in2,HIGH);
digitalWrite(in3,LOW);
digitalWrite(in4,LOW);
digitalWrite(in1o2,LOW);
digitalWrite(in2o2,LOW);
digitalWrite(in3o2,LOW);
digitalWrite(in4o2,LOW);
//delay (500);
3. The motor is control via wireless; controlled from labview which i assign the key 1,2,3,4