I've just completed the design and build of a MIDI controller that converts a great-sounding but somewhat crippled Roland GOKEYS 5 (or 3) to a full-featured performance synthesizer. Just wanted to share it here.
It attaches to the optional note stand screw holes for a secure fit, creating a unique vintage-inspired analog look and providing a plethora of sound-shaping controls together with visual guidance such as MIDI controller name and values, envelope and filter shape graphs, etc. The controller plugs into a USB port on the back of the keyboard, using it for an undocumented MIDI functionality and power delivery, and into an expression pedal jack. The dedicated USB-C MIDI port is left free and is available for use with a PC or laptop if needed.
Build plans and 3D models are available on my website: https://flightsimulation.romandesign.ca/product/roland-gokeys-3-5-midi-controller-build-plans/
The total cost of parts is ~$37
It attaches to the optional note stand screw holes for a secure fit, creating a unique vintage-inspired analog look and providing a plethora of sound-shaping controls together with visual guidance such as MIDI controller name and values, envelope and filter shape graphs, etc. The controller plugs into a USB port on the back of the keyboard, using it for an undocumented MIDI functionality and power delivery, and into an expression pedal jack. The dedicated USB-C MIDI port is left free and is available for use with a PC or laptop if needed.
Build plans and 3D models are available on my website: https://flightsimulation.romandesign.ca/product/roland-gokeys-3-5-midi-controller-build-plans/
The total cost of parts is ~$37
