MIDI to PS/2
This project was originally designed for NextDAW to let you control the software using a real MIDI keyboard.
The device can connect over PS/2 interface but also USB and announces itself as a keyboard - which means you can use this on a device like a MiSTer or even a PC.
This project is effectively a keyboard mapping from your MIDI controller. If you wanted to use it with software other than NextDAW you could modify the source and build a new firmware to suit your specific desires.
All source is available on github: https://github.com/remy/midi-to-ps2/
Misc FAQ
Does this work with MiSTer? yes
Does this work with MiSTer? yes
Can it work with Cspect? yes
Can it use other programs (other than NextDAW)? not out of the box, but with some small code updates which I'm happy to help you with
Can it be used to play cords? only if the DAW software permits cords via the keyboard, currently for NextDAW it's not possible
How can the firmware be updated? Windows, Linux and macOS are supported, the firmware update is a process of connecting over USB and dropping a file into the Pico mounted drive
Drop me an email at remy@remysharp.com if you have any questions.
MIDI to PS/2 (and USB) kit for Spectrum Next and others