Is using an RFID as a Character controller possible?

I'm attempting to use an Arduino RFID to control a character (E.g. TAG 1 = forward, TAG 2 = backwards) So I have the RFID code to read the TAG's with Arduino and this C# code in Unity to take the TAG's from Arduinio:

 using UnityEngine;
 using System.Collections;
 using System.IO.Ports;
 
 public class ReadArdunio : MonoBehaviour {
 
 public static string Data = " ";
     
 SerialPort serial;
     
     void Start () {
         serial = new SerialPort("COM3", 2400);
         serial.Open();
     }
     
     void Updated () {
         Data = serial.ReadLine();
         print(Data);
     }
     
     void Awake (){
         InvokeRepeating ("Updated", 2, 1);    
     }    
 }

And I have this JavaScript to then write out that text in Unity as GUIText:

 function Awake ()
     {
         InvokeRepeating ("UpdateJava", 2, 1);    
     }    
     
     function UpdateJava () 
     {
      var object = GameObject.Find("GUI Text");
      var input = object.GetComponent(ReadArdunio).Data;
      guiText.text = input;
      
     }

I've attempted try to change this code into something that can control the character but am having no luck, as I've basically reached the limits of my abilities, this is what I have so far:

 function Awake ()
     {
         InvokeRepeating ("UpdateJava", 2, 1);    
     }    
     
     function UpdateJava () 
     {
      var object = GameObject.Find("GUI Text");
      var input = object.GetComponent(ReadArdunio).Data;
      print (input); }
      private var controller :CharacterController;
     controller = gameObject.GetComponent(CharacterController);
  
     private var moveDirection = Vector3.zero;
     private var forward = Vector3.zero;
     private var right = Vector3.zero;
      
      if ( (" 0800E3CA33"))
      {
      guiText.text = "tag 1 found";
       controller.transform.position.x = 1;
      } 

Can anyone help please! :)