.net - Substitute/disable Control Components For Development/testing?

I have a VB form that contains controls for interfacing with some hardware (video cameras, motors, etc) on the machine it is to be deployed on, but I'm usually not at the location of said machine (it's a 3-hour drive away). I'm trying to work on the project while on my laptop, but obviously the controls will generate all sorts of errors since they can't talk to the hardware.

I was thinking of replacing the control types with my own mock control classes, then use #if directives to control whether I'm building for the real machine or my test machine. Problem is, some of the affected code is in the form designer-generated code section; the form designer automatically tries to "correct" my changes, so I'd have to manually put them back all the time, and try to remember not to commit the form designer's edits into version control.