In c# wpf, can I build listview column dynamically to a class method?

Your question is little bit lengthy and logical. I tried to achieve the functionality you need.

Kindly go throw following:

MODELS

I divided LED and Servo detail to a different class and took List object of that class into MyData class.

class MyData
{
    public int id { get; set; }
    public string name { get; set; }
    public bool selected { get; set; }
    public List<MySubData> lstSubData { get; set; }
}

class MySubData
{
    public string LED;
    public string Servo;
}

Converters

We need two converters during this process.

In ColorConverter, you need to define your condition for generating different colors based on LED value.

public class TextConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return System.Convert.ToString(value).Split('#').First();
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return new NotImplementedException();
    }
}

public class ColorConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
    var val = System.Convert.ToString(value).Split('#').Last();

        //YOUR COLOR CONDITIONS HERE. I AM RETURNING SIMPLE ONE COLOR

        return new SolidColorBrush(Colors.Red);
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        return new NotImplementedException();
    }
}

XAML

<Window x:Class="WPFTest.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WPFTest"
        mc:Ignorable="d"
        Title="TestWPF" Height="300" Width="400" 
        WindowStyle="SingleBorderWindow" 
        WindowStartupLocation="CenterScreen">

    <Grid>
        <ListView x:Name="lvData" FontSize="13" Background="LightGoldenrodYellow" Margin="0,0,0,0" >

            <ListView.ItemContainerStyle>
                <Style TargetType="ListViewItem">
                    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
                </Style>
            </ListView.ItemContainerStyle>
        </ListView>
    </Grid>
</Window>

CodeBehind

The main logic I applied is in code behind (C#). I generate ListView.View in CS page only. This code will generate dynamic GridView and DataTable for both UI and data.

I took sample data to simulate your requirement. You can take actual data. I took a variable globalServo for defining setting (as you mentioned in comments) for number of columns.

public partial class MainWindow : Window
{
    public int globalServo = 21;

    public MainWindow()
    {
        InitializeComponent();

        List<MyData> lstMyData = new List<MyData>();

        for (int i = 1; i < 6; i++)
        {
            List<MySubData> lstMySubData = new List<MySubData>();

            for (int j = 0; j < globalServo; j++)
            {
                lstMySubData.Add(new MySubData() { LED = "LED" + j, Servo = "Servo" + j });
            }

            lstMyData.Add(new MyData()
            {
                id = i,
                name = "name-" + i,
                selected = Convert.ToBoolean(i % 2),
                lstSubData = lstMySubData
            });
        }

        lvData.View = GenerateGridView();
        lvData.ItemsSource = GenerateSource(lstMyData).DefaultView;
    }

    private GridView GenerateGridView()
    {
        GridView view = new GridView();

        view.Columns.Add(new GridViewColumn() { Header = "Id", DisplayMemberBinding = new Binding("Id") });
        view.Columns.Add(new GridViewColumn() { Header = "Name", DisplayMemberBinding = new Binding("Name") });
        view.Columns.Add(new GridViewColumn() { Header = "Selected", CellTemplate = GetCheckboxTemplate() });

        for (int i = 1; i <= globalServo; i++)
        {
            view.Columns.Add(new GridViewColumn() { Header = "Servo" + i, CellTemplate = GetTextBlockTemplate(i) });
        }

        return view;
    }

    private DataTable GenerateSource(List<MyData> dataList)
    {
        DataTable dt = new DataTable();
        dt.Columns.Add("Id");
        dt.Columns.Add("Name");
        dt.Columns.Add("Selected");

        for (int i = 1; i <= globalServo; i++)
        {
            dt.Columns.Add("Servo" + i);
        }

        foreach (var item in dataList)
        {
            DataRow row = dt.NewRow();
            row["Id"] = item.id;
            row["Name"] = item.name;
            row["Selected"] = item.selected;

            for (int i = 1; i <= globalServo; i++)
            {
                row["Servo" + i] = item.lstSubData[i - 1].Servo + "##" + item.lstSubData[i - 1].LED;
            }

            dt.Rows.Add(row);
        }

        return dt;
    }

    private DataTemplate GetCheckboxTemplate()
    {
        DataTemplate dt = new DataTemplate(typeof(CheckBox));
        FrameworkElementFactory chkElement = new FrameworkElementFactory(typeof(CheckBox));
        dt.VisualTree = chkElement;

        Binding bind = new Binding();
        bind.Path = new PropertyPath("Selected");
        chkElement.SetBinding(CheckBox.IsCheckedProperty, bind);

        return dt;
    }

    private DataTemplate GetTextBlockTemplate(int Index)
    {
        TextConverter textConverter = new TextConverter();
        ColorConverter colorConverter = new ColorConverter();

        DataTemplate dt = new DataTemplate(typeof(TextBlock));
        FrameworkElementFactory txtElement = new FrameworkElementFactory(typeof(TextBlock));
        dt.VisualTree = txtElement;

        Binding bind = new Binding();
        bind.Path = new PropertyPath("Servo" + Index);
        bind.Converter = textConverter;
        txtElement.SetBinding(TextBlock.TextProperty, bind);

        Binding bind1 = new Binding();
        bind1.Path = new PropertyPath("Servo" + Index);
        bind1.Converter = colorConverter;
        txtElement.SetBinding(TextBlock.BackgroundProperty, bind1);

        return dt;
    }

}

OUTPUT

NOTES

This is a very basic sample which simulate the scenario you mentioned in your question with all mock data. I took every class, converters in single page only. You need to take care of object references / namespaces while managing proper folder structure for your project. I tested this code and this is working as attached image.