This is the startpage for the RK-002 legacy firmwares, you can choose the firmware settings pages below.

Newer (custom) firmwares will be published on the RK-002 DUY Portal

• MOD firmware (volca FM velocity fix, PolyMUX, ...)
  Actually not only to add velocity data to the volca FM - it's a more versatile firmware version which is able to add extra controller mapping to key, aftertouch, pitch and modulation. This can come in handy on various MIDI devices.
  More info on the MOD Firmware
  Settings page with freely assignable CC Mappings
  Specific CC mappings for the:
  KORG Volca FM
  KORG Volca Bass
  KORG Volca Kick
  KORG Volca Keys
  Roland Boutique templates
  
• Volca Sample firmware Settings
  Adds single MIDI channel sample triggering, chromatic play capabilities and more to the Volca Sample
  More info on the RK-002 Volca Sample specifics
• Arpeggiator firmware Settings
  Adds arpeggiator capabilities to your MIDI
• KORG Kaossilator firmware Details
  This firmware allows you to play the KORG Kaossilator from a regular MIDI keyboard.