smart-bow-infrared/Assets/BowArrow/Scripts/SerialPortTest.cs

using System;
using System.Collections.Generic;
using TMPro;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.UI;

public class SerialPortTest : MonoBehaviour
{
    public Button SendButton;
    public TMP_InputField InputField;
    private ArrowSerialPort targetPort;
    private void Awake()
    {
        InputField.text = string.Empty;
        SendButton.onClick.AddListener(OnSendPortData);
        DontDestroyOnLoad(this);
        targetPort = GameObject.FindObjectOfType<ArrowSerialPort>();
    }

    private void OnSendPortData()
    {
        var msg = InputField.text;
        var datasStr = msg.ToCharArray();
        List<byte> data = new List<byte>();
        for (int i = 0; i < datasStr.Length; i += 5)
        {
            var dataStr = $"{datasStr[i]}{datasStr[i + 1]}{datasStr[i + 2]}{datasStr[i + 3]}";
            data.Add(Convert.ToByte(dataStr, 16));
        }
        targetPort.TestRead(data.ToArray());
    }
}