Hi,
I have the same build and it certainly has code and it works.
I think the Touch module works only with licenced copies of Mach. I am dubious that Darwin will enact everything required to make the Touch module
work. Mach4 is at its best and is designed for an external motion controller like an ESS. Art, the guy who wrote Darwin has categorically stated that
Darwin will never be fully featured, so things like THC, lathe threading and probably backlash compensation will never be enacted. Do yourself a favour
and get an external motion controller, there are four manufacturers competeing in the 'value' end of the market and any of them are good.
Craig