teensy-eurorack VS O_C

also you can use an fpga as a great logic analyser. can decode all sorts of protocols. check papilio fpga, it’s the best cheapest logic analyser you could ever find. it’s been very handy, helped me build this thing (sounds a bit like what you’re trying do) https://github.com/newdigate/teensy-eurorack

https://github.com/newdigate/teensy-control-voltage or https://github.com/newdigate/teensy-eurorack perhaps?

We can all dream for a port, but it seems like a lot of work to get around limitations in the speed of the SPI port on the 4.0. Most likely it would end up having to be a module with the heart of a Teensy 4.0 and some additional circuitry in order to get the needed performance, and it still requires a massive rewrite of several of the apps. Lots of people are clamoring for it, but nobody is stepping up to volunteer the hundreds of hours needed a to carry it out.

A serious project just right for CV modulation built around the Teensy microcontroller is the Ornament and Crime DIY module.

Ornament and Crime is open source and on github as is every mutable instrument module, including plaits. The Grone Drone seems to be a combination of digital and analog sections, a quick look at their website didn't tell me what's behind the oscillator section.