Untitled

Serial Port, Checkboxes, Threading
private void receiveData()
{
    for(int i = 0; i < 3; ++i)
        inputs[i] = serialPort.ReadByte();
    for (int i = 0; i < 3; ++i)
        outputs[i] = serialPort.ReadByte();

    checkBoxI1.IsChecked = inputs[0] == 32 ? true : false;
    checkBoxI2.IsChecked = inputs[1] == 32 ? true : false;
    checkBoxI3.IsChecked = inputs[2] == 32 ? true : false;
    checkBoxQ1.IsChecked = outputs[0] == 32 ? true : false;
    checkBoxQ2.IsChecked = outputs[1] == 32 ? true : false;
    checkBoxQ3.IsChecked = outputs[2] == 32 ? true : false;
}
// Tab change
private void tabControl1_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    if (tabControl1.SelectedItem == tabItem1)
    {
        serialPort.Close();
        try
        {
            receiveThread.Abort();
        }
        catch (NullReferenceException)
        {
        }
    }
    else if (tabControl1.SelectedItem == tabItem2)
    {
        serialPort.Open();
        receiveThread = new Thread(receiveData);
        receiveThread.Start();
    }
}

checkBoxI1.Invoke(new Action(() =>
{
    checkBoxI1.IsChecked = inputs[0] == 32;
    checkBoxI2.IsChecked = inputs[1] == 32;
    checkBoxI3.IsChecked = inputs[2] == 32;
    checkBoxQ1.IsChecked = outputs[0] == 32;
    checkBoxQ2.IsChecked = outputs[1] == 32;
    checkBoxQ3.IsChecked = outputs[2] == 32;
}));