Thanks to
aquawicket and his Edrum
Monitor project MegaDrum32 can now be controlled from a PC. For now it
is a standalone application, MegaDrum Controller, which you can use to control
all the settings on MegaDrum.
With it you can:

• get current settings from MegaDrum
• apply settings to MegaDrum
• save settings into permanent memory on MegaDrum
• save/load settings to/from a file
• redirect output to a MIDI port, e.g. to a virtual MIDI port to be
  processed by a sequencer. This way you can control MegaDrum and send MIDI
  notes to a sequencer at the same time.

Now if you intend to use
MegaDrum only with a PC, you can omit the LCD and the keyboard from
the schematics, making it even easier to build MegaDrum. Get it from the Downloads page.