public void Dispose()
{
if (step is null)
{
return;
}
step.Value = false;
dir.Value = false;
enable.Value = false;
m0.Value = false;
m1.Value = false;
m2.Value = false;
Pi.Wait(enableDelay);
step.Close();
dir.Close();
enable.Close();
m0.Close();
m1.Close();
m2.Close();
step = null;
dir = null;
enable = null;
m0 = null;
m1 = null;
m2 = null;
}