@Adeering and Kickflip: I've not cut the front panel yet, but I'll do it making some holes for bolts. If you see my design, there are holes in the new front panel just for that.
@ReuFroman: Raspberry PI or Beagleboard would have been the same, I'm sure also that nice object would well do its job. All the brewing processes will be managed by the Opentroller, the RPI has been introduced to improve the stand alone usability of the system.
Currently I have some troubles with my Opentroller DX1, the ethernet interface is not working in the standard way, as expected for the board. Talking with oscsys team to find a suitable solution in order to proceed with this build.