Please help. When I add Vuforia and scripts the bluetooth no longer works.

Hello everyone, and I hope you can help me sort this out.
So I'm trying to make an augmented reality remote for Arduino. I bought the Bluetooth asset from Tech Tweaking, and everything worked fine until then.
When I added the Vuforia part, the asset no longer worked. It had a button that said "Open devices" and listed the Bluetooth devices that were available. Yet when I add the AR part, it no longer does it. Any idea on why this happens and how to solve it? I leave the codes I'm using for further details. Thanks in advance for the help.
This one is for detecting the touch on the AR cube

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4.  
5. public class camera : MonoBehaviour {
6.     // Update is called once per frame
7.     void Update () {
8.  
9.         int touchCorrection = 1;
10.  
11.         RaycastHit hit = new RaycastHit();
12.         for (int i = 0; i+touchCorrection < Input.touchCount; ++i) {
13.             if (Input.GetTouch(i).phase.Equals(TouchPhase.Began)) {
14.                 // Construct a ray from the current touch coordinates
15.                 Ray ray = Camera.main.ScreenPointToRay(Input.GetTouch(i).position);
16.                 if (Physics.Raycast(ray, out hit)) {
17.                     hit.transform.gameObject.SendMessage("OnMouseDown");
18.                 }
19.             }
20.         }
21.  
22.     }
23. }

This one is for detecting changing the object color and changing the text that is supposed to be sent to the Arduino.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4. using System.Text;
5. using UnityEngine.UI;
6.  
7. public class red : MonoBehaviour {
8.  
9.     public Text dataToSend;
10.     bool isHighlighted = false;
11.     Material originalMaterial;
12.     Material redMaterial;
13.     MeshRenderer meshRenderer;
14.  
15.     GameObject baseObject;
16.     string obj_name;
17.     // Use this for initialization
18.     void Start () {
19.         obj_name        = this.gameObject.name;
20.         baseObject      = GameObject.Find( obj_name );
21.         meshRenderer        = baseObject.GetComponent<MeshRenderer>();
22.         originalMaterial    = meshRenderer.material;
23.  
24.         Color red           = new Color(255.0f,0.0f,0.0f,0.5f);
25.         //Color red           = new Color(255.0f,0.0f,0.0f, 0.5f);
26.         redMaterial         = new Material(Shader.Find("Transparent/Parallax Specular"));
27.         redMaterial.color   = red;
28.  
29.     }
30.  
31.     // Update is called once per frame
32.     void Update () {
33.  
34.     }
35.  
36.     void OnMouseDown(){
37.  
38.         Debug.Log("OMD "+obj_name);
39.         isHighlighted = !isHighlighted;
40.  
41.         if( isHighlighted == true ){
42.  
43.             HighlightRed();
44.             dataToSend.text = "<U>";
45.  
46.         }
47.         if ( isHighlighted==false ){
48.  
49.             RemoveHighlight();
50.             dataToSend.text = "<u>";
51.         }
52.     }
53.  
54.     void HighlightRed(){
55.  
56.         meshRenderer.material = redMaterial;
57.         Debug.Log("IT SHOULD BE RED");
58.     }
59.  
60.     void RemoveHighlight(){
61.  
62.         meshRenderer.material = originalMaterial;
63.     }
64.  
65. }

And this last one for activating a button from within the script that sends the text via bluetooth.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.EventSystems;
5.  
6. public class fake_click : MonoBehaviour {
7.  
8.     [SerializeField] GameObject[] buttons;
9.     int buttonIndex = 0;
10.  
11.     void OnMouseDown () {
12.         ExecuteEvents.Execute<IPointerClickHandler>(buttons[buttonIndex] , new PointerEventData(EventSystem.current),ExecuteEvents.pointerClickHandler);
13.     }
14. }
15.  

 

Did you find a solution to this? I'm having the same issue

 

Any update on this?