Editor crashes when trying to acces serial port 7?

Unity Engine
1

So I have this script attached to a cube and I am trying to read values trough my serial port 7 but Unity crashes when I click play. It doesn’t happen with the other serial ports I used.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.IO.Ports;

public class rotate : MonoBehaviour
{
    string inputs;
    SerialPort sp = new SerialPort("COM7", 115200);
    void Start()
    {
       sp.Open();
    }

    // Update is called once per frame
    void Update()
    {
        inputs = sp.ReadLine();
        string[] quats = inputs.Split(',');
        float x = float.Parse(quats[1]);
        float y = float.Parse(quats[2]);
        float z = float.Parse(quats[3]);
        transform.eulerAngles = new Vector3(x,y,z);
       
    }
}
2

when it crashes what it say?

3

Nothing it just freezes and I have to close it through task manager

4

did that port works on your computer? what is it? can you read the information from that port outside unity?

with some other program?

5

Yes I can read it in a serial plotter so it should work.