This is of a demo of how you can make a super easy and cheep wireless control pendant for your EMC2 machine. All you need to do is install QtsixA and set up your controller as a mouse and keboard. You can map the hokeys custom to your machine.
This is a really handy hack! If you’ve ever tried to zero a workpiece and gotten tangled up in cables, this thing is a godsend. He mentions he uses it for manual milling too, which I can imagine is very useful, particularly for cutting reference faces.