Hey, it’s great to hear that the Lumazoid is working for you. I’ve never heard of anyone using it with control voltage. What is the voltage level of your CV signal? I hope it is not more than 2.5V. If it is, you will eventually damage the microcontroller. If your CV is 5V, it can be lowered to 2.5V with a simple voltage divider made of 2 resistors.
As for programming the Lumazoid, it’s probably going to be really hard if you are a newbie. The code is not simple. You can have a look at it on GitHub:
https://github.com/nootropicdesign/lumazoid
To program the board, you would need a USB to serial adapter like this: https://nootropicdesign.com/store/product/ftdi-friend/
They are available everywhere.
I don’t have any case for the Lumazoid, but am just learning 3D printing. Yeah, I’ve thought of eurorack for stuff like my synths, but I don’t have a rack or anything.
Stay in touch. Got a video of you using it with CV and a modular system? I’d love to tweet that.